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caution! - Climatemaster

1. Electric water heaters are recommended If a gas propane or oil water heater is used a second preheat tank must be installed Figure 15 If the electric water heater has only a single center element the dual tank system is recommended to insure a usable entering water temperature for the HWG Typically a single tank of at least 52 gallons 235 liters is used to limit installation costs and space However a dual tank as shown in Figure 15 is the most efficient system providing the maximum storage and temperate source water to the HWG Itis always advisable to use water softening equipment on domestic water systems to reduce the scaling potential and lengthen equipment life In extreme water conditions it may be necessary to avoid the use of the HWG option since the potential cost of frequent maintenance may offset or exceed any savings Consult Table 3 for scaling potential tests Figure 14 Typical HWG Installation Shut Off Valve 1 Cold Inlet From Domestic Supply a e Shut Off Valve 4 Shut Off Valve 2 Upper element to 120 130 F 49 54 C Powered Water Heater b Lower element to 100 110 F 38 43 C Ep sia ass Nipple and T Insulated Water Lines Figure 15 HWG Double Tank Installation Shut Off Cold Inlet From Hot Outlet Domestic Supply To House Hot Outlet Cold Inlet Upper element to LL Wo 180 49 54 C
2. Shut Off Valve 4 Powered Water Heater Lower element to 110 120 F Field Supplied 3 4 Brass Nipple 43 49 C and T Unpowered Water Heater Insulated Water Lines 5 8 OD 50 ft Maximum 16mm OD 15 Meters Maximum Residential Packaged Units 60Hz Puron Rev 4 Jan 2012 Installation The HWG is controlled by two sensors and a microprocessor control One sensor is located on the compressor discharge line to sense the discharge refrigerant temperature The other sensor is located on the HWG heat exchanger s Water In line to sense the potable water temperature A WARNING A WARNING UNDER NO CIRCUMSTANCES SHOULD THE SENSORS BE DISCONNECTED OR REMOVED AS FULL LOAD CONDITIONS CAN DRIVE HOT WATER TANK TEMPERATURES FAR ABOVE SAFE TEMPERATURE LEVELS IF SENSORS HAVE BEEN DISCONNECTED OR REMOVED The microprocessor control monitors the refrigerant and water temperatures to determine when to operate the HWG The HWG will operate any time the refrigerant temperature is sufficiently above the water temperature Once the HWG has Satisfied the water heating demand during a heat pump run cycle the controller will cycle the pump at regular Intervals to determine if an additional HWG cycle can be utilized The microprocessor control Includes 3 DIP switches SW10 HWG PUMP TEST SW11 HWG TEMP and SW12 HWG STATUS SW10 HWG PUMP TEST When this switch is in the ON position the HWG
3. Stage 2 heating G Y1 Y2 W Stage 3 heating Stage 3 heating N A G W Emergency heat Emergency heat Emergency heat G Y orY1 0 Stage 1 cooling Stage 1 cooling Cooling G Y1 Y2 0 Stage 2 cooling Stage 2 cooling N A 1 Stage 1 1st stage compressor 1st stage fan operation Stage 2 2nd stage compressor 2nd stage fan operation Stage 3 2nd stage compressor auxiliary electric heat 2nd or 3rd stage fan operation depending on fan settings 2 Stage 1 1st stage compressor 1st stage fan operation reversing valve Stage 2 2nd stage compressor 2nd stage fan operation reversing valve 3 Stage 1 compressor 1st stage fan operation Stage 2 compressor 2nd stage fan operation Stage 3 compressor auxiliary electric heat 2nd or 3rd stage fan operation depending on fan settings 4 Stage 1 compressor 1st stage fan operation reversing valve Stage 2 compressor 2nd stage fan operation reversing valve 5 Stage 1 compressor fan Stage 2 compressor auxiliary electric heat fan 6 Cooling 2 compressor fan reversing valve 31 32 Residential Packaged Units 60Hz Puron Rev 4 Jan 2012 CXM Controls Table 7 Nominal resistance at various temperatures Resistance kOhm 85 41 84 16 81 43 61 70 58 40 55 30 52 40 49 60 47 00 44 60 42 30 40 10 38 10 36 10 34 30 32 60 31 00 29 40 28 00 26 60 25 30 24 10 23 00 21 90 20 80
4. 36 41 37 42 38 43 21 2 23 2 15 7 17 7 10 2 12 2 19 25 20 26 21 27 88 98 94 104 100 110 306 326 311 331 317 337 10 15 10 15 11 16 8 13 8 13 9 14 11 13 8 3 10 3 5 5 7 5 23 29 24 30 25 31 135 145 133 143 132 142 300 320 285 305 270 290 12 17 14 19 16 21 20 3 22 3 15 17 10 12 21 27 21 27 22 28 112 122 122 132 130 140 333 353 342 362 351 371 12 17 14 19 15 20 10 15 10 15 11 16 14 16 10 5 12 5 7 3 9 3 28 34 30 36 32 38 139 149 138 148 138 148 390 410 370 390 350 370 8 13 8 13 8 13 19 3 21 3 14 3 16 3 9 3 11 3 20 26 21 27 21 27 144 154 143 153 142 152 488 508 468 488 448 468 Based on 15 Methanol antifreeze solution 40 8 13 7 12 7 12 18 4 20 4 13 6 15 6 8 8 10 8 147 157 154 164 160 170 369 389 377 397 385 405 15 20 18 23 19 24 10 15 10 15 11 16 17 7 19 7 13 4 15 4 9 11 36 42 37 43 38 44 Residential Packaged Units 60Hz Puron Rev 4Jan 2012 Unit O perating Conditions Table 12 GT PG Series Typical Unit Operating Pressures and Temperatures Continued 070 Full Load Cooling without HWG active Full Load Heating without HWG active Entering Water Suction Discharge end Air Temp Suction Discharge Water Air Temp Water Flow Pressure Pressure Superheat Subcooling Rise Drop F Pressure Pressure Superheat Subcooling Temp Drop Rise
5. ALITIAVIT LORLLS NI YO 32ONS STTOSIN SOPIITTHVO 2104 AO AJNV BPIVM ANV JO HOVHS AHL 804 LOV3LINOO JO HO VIS AOA WALAAVI LSNIVOV YASVHOUNd AO AAANA AHL AO AGAWAA AAISATOXA ANV TIOS AHL SI AGAWAN STH L HVO Jo Ariqer umumxeur ap 3q eys punja preg s poos pos ou Jo umjo1 oq Joy o3uvupxo Ur JoL1e 0 pred oorid oseqoand oq punjo preys Joe osodind erjuosso sy Jo s mj Apouro og pue onrej 1910 JO uorjounjpeur 129jop IP 3221100 0 IIVO Aq Sdwa jo 19quinu o qvuoseo1 v pue amre IIO JO uorjounjpeur 359jop Youd Jo euroqepro AUD euroqepio ur K10329 SIALE 0 IOYOU UMUM Joye JJ pom sey qorqA jrun Jo Ped oy Joy o3uvgoxo ur UN 10 ped 3pnqor 10 Aou v qsrumg 0 10 yun 10 Wed po mj ou 11edo 0 uondo s 19u10 W pojesrqo 3q juo TA JoWIED AjuerxmA ssaidxzp pojrurT oy jo qovaiq v Jo JUA ou UT SUMAWANA 4O NOLLV LIIATT Ajueim M ssoidxg pojurT ot jo uonenp oy 0 pojrurn 3q eus Aimqejueqorour pue osodind 1e nonied Joy ssouyg Jo sonuenm pordu Aue 10 sonueimA ssoxdxo Aue uonejrum jnoqira aurpnjour Auer ssoaidxo yons Aue jsrxo sonueimA JOYIO jeu poururojop st 3r uro1oq pourejuoo SIOUITE OSIP oq Surpuejsujr jou JJ sonuenmeA IIO JPL JO NOT ur UDATS sr AjuermA Ssoidxg poyrumT sr WOVE ATT MO 9q Sso1ppr 10 1oquinu ououd oq qe JOLTED 32u09 paseyoind oavy NOK Jonpoad oq 0 sorde KyueeA ssordxsy posu sig jt amsun am NOK FT IOTEWS pue A192 WIM Suruurdoq sioquinu eros YIM SHUN peuaoqioor 19r opnpout Kqpe19098 proa srp QT0C T Inr 0 10
6. 10 12 20 26 20 26 20 26 122 132 133 143 144 154 353 373 365 385 378 398 12 17 14 19 16 21 11 16 11 16 11 16 15 17 11 5 13 5 8 10 29 35 31 37 33 39 133 143 132 142 132 142 390 410 368 388 345 365 8 13 9 14 9 14 8 13 6 11 5 10 19 21 14 16 9 11 19 25 19 25 19 25 141 151 140 150 140 150 497 517 472 492 447 467 Based on 1596 Methanol antifreeze solution 060 Full Load Cooling without HWG active 6 11 7 12 8 13 8 13 6 11 5 10 18 20 13 5 15 5 8 7 10 7 18 24 18 24 18 24 166 176 173 183 181 191 397 417 407 727 417 437 16 21 18 23 19 24 9 14 9 14 10 15 19 5 21 5 14 7 16 7 9 9 11 9 37 43 38 44 40 46 Full Load Heating without HWG active Entering Water Temp F Water Flow GPM ton Suction Pressure PSIG Discharge Pressure PSIG Superheat Subcooling Water Temp Rise oF Air Temp Drop F DB Suction Pressure PSIG Discharge Pressure PSIG Superheat Subcooling Water Temp Drop oF Air Temp Rise F DB 30 1 5 2 25 3 98 108 97 107 96 106 160 180 149 169 137 157 40 45 41 46 42 48 20 22 14 3 16 3 8 5 10 5 19 25 19 25 20 26 62 72 66 76 70 80 276 296 280 300 284 304 6 11 6 11 7 12 6 11 6 11 6 11 8 10 6 8 4 6 17 23 18 24 19 25 1 5 2 25 118 128 117 127 115 125 225 245 210 230 195 215
7. 19 90 18 97 18 09 17 25 16 46 15 71 15 00 14 32 13 68 13 07 12 49 11 94 11 42 10 92 10 45 10 00 9 57 9 17 8 78 8 41 8 06 7 72 7 40 7 10 6 81 6 53 6 27 6 02 5 78 5 55 5 33 5 12 4 92 4 73 4 54 4 37 4 20 4 04 3 89 3 74 3 60 3 47 3 34 3 22 3 10 CXM Thermostat Details Thermostat Compatibility Most all heat pump thermostats can be used with the CXM control However Heat Cool stats are NOT compatible with the CXM Anticipation Leakage Current Maximum leakage current for Y is 50 mA and for W is 20mA Triacs can be used if leakage current is less than above Thermostats with anticipators can be used if anticipation current is less than that specified above Thermostat Signals Y and W have a 1 second recognition time when being activated or being removed O and G are direct pass through signals but are monitored by the micro processor R and C are from the transformer AL1 and AL2 originate from the alarm relay A is paralleled with the compressor output for use with well water solenoid valves The Y 1 4 quick connect is a connection point to the Y input terminal P 1 for factory use This Y terminal can be used to drive panel mounted relays such
8. 276 296 278 298 280 300 10 15 10 15 10 15 10 15 10 15 10 15 7 2 9 2 5 3 7 3 3 5 5 5 17 23 18 24 18 24 136 146 136 146 136 146 211 231 197 217 183 203 11 16 11 16 11 16 6 11 5 10 5 10 20 6 22 6 14 8 16 8 9 11 17 23 17 23 17 23 99 109 103 113 108 118 302 322 306 326 311 331 10 15 10 15 10 15 13 18 13 18 13 18 10 6 12 6 7 7 9 7 5 7 22 28 23 29 23 29 137 147 137 147 137 147 275 295 260 280 245 265 9 14 9 14 9 14 10 15 9 14 9 14 19 21 13 8 15 8 8 10 18 24 19 25 19 25 127 137 133 143 139 149 332 352 338 358 344 364 10 15 10 15 10 15 15 20 15 20 15 20 13 5 15 5 10 1 12 1 6 7 8 7 27 34 28 35 29 36 142 152 142 152 142 152 373 393 352 372 332 352 7 12 8 13 8 13 10 15 6 11 6 11 19 5 21 5 13 9 15 9 8 3 10 3 17 23 17 23 17 23 147 157 147 157 147 157 467 487 448 468 430 450 Based on 15 Methanol antifreeze solution 6 11 6 11 6 11 10 15 8 13 7 12 16 2 18 2 11 9 13 9 7 6 9 6 16 22 16 22 16 22 164 174 172 182 181 191 365 385 372 392 379 399 11 16 11 16 12 17 15 20 15 20 15 20 17 4 19 4 13 2 15 2 9 11 34 42 35 43 36 44 39 Residential Packaged Units 60Hz Puron Rev 4Jan 2012 Unit O perating Conditions Table 12 GT PG Series Typical Unit Operating Pressures and Temperatures Continued 042 F
9. parts and accessories which make up the installation shall be in accordance with the regulations of ALL authorities having jurisdiction and MUST conform to all applicable codes It is the responsibility of the installing contractor to determine and comply with ALL applicable codes and regulations Horizontal Installation Mounting Horizontal Units Horizontal units have hanger kits pre installed from the factory as shown in Figure 1 Figure 3 shows a typical horizontal unit installation Horizontal heat pumps are typically suspended above a ceiling or within a soffit using field supplied threaded rods sized to support the weight of the unit Use four 4 field supplied threaded rods and factory provided vibration isolators to suspend the unit Hang the unit clear of the floor slab above and support the unit by the mounting bracket assemblies only DO NOT attach the unit flush with the floor slab above Pitch the unit toward the drain as shown in Figure 2 to improve the condensate drainage On small units less than 2 5 tons 8 8kW ensure that unit pitch does not cause condensate leaks inside the cabinet Figure 1 Hanger Bracket 3 8 10mm Threaded Rod by others Vibration Isolator factory supplied Washer by others Double Hex Nuts by others Figure 2 Horizontal Unit Pitch _L 1 4 6 4mm r for drainage Connection Residential Packaged Units 60Hz Puron Rev 4Jan 2012 Ho
10. 1 Place unit in well lit area Remove the screws as shown in Figure 4 to free top panel and discharge panel 2 Liftoutthe access panel and set aside Lift and rotate the discharge panel to the other position as shown being careful with the blower wiring 3 Check blower wire routing and connections for tension or contact with sheet metal edges Reroute if necessary 4 Check refrigerant tubing for contact with other components 5 Reinstall top panel and screws noting that the location for some screws will have changed 6 M Manually spin the fan wheel to ensure that the wheel is not rubbing or obstructed 7 Replace access panels Back to Side Discharge Conversion If the discharge is changed from back to side use above instruction noting that illustrations will be reversed Left vs Right Return It is not possible to field convert return air between left or right return models due to the necessity of refrigeration copper piping changes However the conversion process of side to back or back to side discharge for either right or left return configuration is the same In some cases it may be possible to rotate the entire unit 180 degrees if the return air connection needs to be on the opposite side Note that rotating the unit will move the piping to the other end of the unit Field Conversion of Air D ischarge Figure 4 Left Return Side to Back Remove Screws Water Connection End Move to Side Replace
11. 19 C 68 F 20 C 80 6 66 2 F 27 19 C 68 F 20 C Max entering air DB WB 100 75 F 38 24 C 80 F 27 C 95 75 F 35 24 C 80 F 27 C Water Limits Min entering water 30 F 1 C 20 F 6 7 C 30 F 1 C 20 F 6 7 C Normal entering water 50 110 F 10 43 C 30 70 F 1 to 21 C 50 110 F 10 43 C 30 70 F 1 to 21 C Max entering water 120 F 49 C 90 F 32 C 120 F 49 C 90 F 32 C 1 5 to 8 0 gpm ton 1 5 to 3 0 gpm ton Normal vate Clerk 1 6 to 3 2 Vm per kW 1 6 to 3 2 I m per kW Rev 20 May 2009S Commissioning Conditions Consult Table 8b for the particular model Starting conditions vary depending upon model and are based upon the following notes Notes 1 Conditions in Table 8b are not normal or continuous operating conditions Minimum maximum limits are start up conditions to bring the building space up to occupancy temperatures Units are not designed to operate under these conditions on a regular basis 2 Voltage utilization range complies with AHRI Standard 110 Table 8b Building Commissioning Limits CER ed GT PX GT PG Commissioning Limits Cooling Heating Air Limits Min ambient air DB 45 F 7 C 39 F 4 C Rated ambient air DB 80 6 F 27 C 68 F 20 C Max ambient air DB 110 F 43 C 85 F 29 C Min entering air DB WB BO F 10 C 40 F 4 5 C Rated entering air DB WB 80 6 66 2 F 27 19 C Max entering air DB WB 110 83 F 43 28 C Water Lim
12. 5 up to Max ESP shown with wet coil and standard 1 fiberglass filter Do not select Dehumidification mode if HP CFM is on setting 1 All units AHRI ISO ASHRAE 13256 1 rated HP Cooling Delay Heating CFM Setting 3 Note See the ECM Blower Control section for information on setting taps Residential Packaged Units 60Hz Puron Rev 4Jan 2012 GT PG 50YE Series PSC Blower Performance D ata Airflow in CFM with wet coil and clean air filter Airflow cfm at External Static Pressure in wg 0 20 0 25 0 30 0 35 0 40 0 45 0 50 0 60 0 70 693 692 690 683 675 658 640 598 581 583 585 573 560 547 517 512 506 495 462 931 914 882 842 492 515 809 763 731 698 656 185 007 874 378 0 80 0 90 1 00 1856 1752 1670 1582 Black areas denote ESP where operation is not recommended Units factory shipped on medium speed Other speeds require field selection All airflow is rated and shown above at the lower voltage if unit is dual voltage rated e g 208V for 208 230V units 27 Residential Packaged Units 60Hz Puron Rev 4Jan 2012 GT PG 50YE Series ECM Blower Performance D ata Residential Airflow in CFM with wet coil and clean air f
13. 60Hz Puron Rev 4 Jan 2012 Revision History Date Page Description 4 Jan 11 Various Deleted References to YEO70 with PSC motor 10 March 11 16 HWG Piping Drawings Revised 4 Oct 10 19 ECM Electrical Data Updated 29 July 10 Wiring Diagram Pages Wire Diagram revision water side high pressure switches added 1 July 10 Various Warranty Nomenclature Unit Photos Updated 14 June 10 Various Compressor isolation upgrade from Springs to grommets 30 April 10 16 HWG Piping Drawings Revised 15 April 10 18 HWG Piping Length Table Added 30 Oct 09 45 Functional Troubleshooting Table Updated 15 Sept 09 30 Safety Features CXM DXM Controls Section Updated 02 June 09 R22 Information Removed 01 Jan 09 Reformatted Document Size 21 Aug 07 Updated with Model 072 Information 01 Oct 06 First Published ama lh ISO 9001 2000 P X LisTEO Certified Quality First amp Always PAL a Intertek 97B0046N03 7300 S W 44th Street Oklahoma City OK 73179 Phone 405 745 6000 Fax 405 745 6058 The Manufacturer works continually to improve its products As a result the design and specifications of each product at the time for order may be changed without notice and may not be as described herein Please contact the Manufacturer s Customer Service Department at 1 405 745 6000
14. Air Temp Drop F DB Discharge Pressure PSIG Superheat Subcooling Water Temp Drop F 30 1 5 2 25 3 112 122 111 121 111 121 187 207 167 187 147 167 22 27 22 27 23 28 14 19 1247 11 16 20 7 22 7 5 5 17 5 0 2 12 2 18 24 18 24 18 24 66 76 69 79 72 82 286 306 289 309 292 312 7 12 7 12 7 12 8 10 6 8 4 6 1 5 2 25 3 125 135 123 133 122 132 242 262 224 244 205 225 13 18 13 18 14 19 10 15 9 7 20 9 22 9 5 6 17 6 0 2 12 2 19 25 19 25 19 25 93 103 98 108 103 113 314 334 320 340 326 346 8 13 8 13 8 13 11 5 13 5 8 7 10 7 5 9 7 9 1 5 2 25 3 133 143 132 142 131 141 310 330 290 310 270 290 8 13 8 13 9 14 8 T 5 20 5 22 5 5 2 17 2 9 9 11 9 19 25 19 25 19 25 123 133 130 140 137 147 344 364 354 374 361 381 9 14 9 14 9 14 15 17 11 5 13 5 7 9 9 9 1 5 2 25 3 138 148 137 147 136 146 396 416 374 394 352 372 7 12 7 12 7 12 7 9 2 21 2 4 3 9 3 1 18 24 18 24 18 24 165 175 175 185 185 195 1 5 2 25 3 144 154 143 153 142 152 497 517 472 492 447 467 Based on 15 Methanol antifreeze solution 7 12 7 12 1 12 o 9 2mjlomo ms 18 20 3 3 15 3 8 5 10 5 17 23 17 23 17 23 390 410 401 421 413 433 13 18 15 20 17 22 19 6 21 6 15 17 10 3 12 3 37 Residential Packa
15. PG Units Aux Emerg Heat settings GT PX and GT PG Units Version Version Il 17B0019N01 Version Version Il 17B0019N01 Version Version Il 17B0019N01 69243707 Version Ill 17BO034N01 AUX CFM DIP Switch Setting CFM Adjust settings GT PX and GT PG Units Dehum Mode settings GT PX and GT PG Units Version Version Il 17B0019NO1 Version Version Il 17B0019NO1 CFM Adj DIP Switch Dehumid DIP Switch Jumper W9 O F Dehumid pins 2 3 OF Figure 26b ECM Version Interface Layout 1 4 Spade pomeren E T 1 4 Spade o or ermostal E DXM Board Input LEDs gt Connections r to CXM or DXM Board l Thermostat G Y Ty je Input LEDs CFM Counter CFM Counter Thermostat 1 flash per 100 CFM Sl 1 flash per 100CF Connections Thermostat X iw Connections ojo ECM Motor oje ECM Motor 2 Low Voltage Eje z Low Voltage D Connector Blas Connector D prs D Se vie El Dehumidification 2 z E D 3 ooojj sz ooojjis S oooQj s ooolg s g Ol frt Dehumidification EMS PES noe LED z ooologlez ooo ol e ooolgs ooolgl Fan Speed Selection DIP Switch Fan Speed Selection Jumpers Figure 26c ECM Version Ill Interface Layout Compressor Dehumidification HWG LED Discharge Sensor Hot Water Sensor LED 1 4 Spade Pei ECM M
16. after 20 minutes CXM Troubleshooting Process Flowchart Functional Troubleshooting Chart The CXM Functional Troubleshooting Process Flowchart is a quick overview of how to start diagnosing a suspected problem using the fault recognition features of the CXM board The Functional Troubleshooting Chart on the following page is a more comprehensive method for identifying a number of malfunctions that may occur and is not limited to just the CXM controls Within the chart are five columns The Fault column describes the symptoms Columns 2 and 3 identify in which mode the fault is likey to occur heating or cooling The Possible Cause column identifies the most likely sources of the problem The Solution column describes what should be done to correct the problem A WARNING A WARNING HAZARDOUS VOLTAGE DISCONNECT ALL ELECTRIC POWER INCLUDING REMOTE DISCONNECTS BEFORE SERVICING Failure to disconnect power before servicing can cause severe personal injury or death 43 44 Residential Packaged Units 60Hz Puron Rev 4Jan 2012 CXM Process Flow Chart A WARNING A WARNING HAZARDOUS VOLTAGE DISCONNECT ALL ELECTRIC POWER INCLUDING REMOTE DISCONNECTS BEFORE SERVICING Failure to disconnect power before servicing can cause severe personal injury or death Start CXM Functional Troubleshooting Flow Chart Did Unit Check Main Attempt to power see power Start
17. and Temperatures 026 Entering Water Temp oF Water Flow GPM ton Full Load Cooling without HWG active Full Load Heating without HWG active Suction Pressure PSIG Discharge Pressure PSIG Superheat Subcooling Water Temp Rise oF Air Temp Suction Drop F Pressure PSIG Discharge Pressure PSIG Superheat Subcooling Water Temp Drop oF 18 18 18 28 28 159 179 146 166 132 152 6 7 18 7 2 3 14 3 7 9 9 9 72 83 75 85 78 88 273 293 275 295 277 297 5 9 7 9 4 2 6 2 2 7 4 7 28 28 186 206 172 192 158 178 6 3 18 3 2 1 14 1 7 8 9 8 102 112 106 116 110 120 302 322 303 323 305 325 8 9 10 9 6 7 8 7 4 5 6 5 281 301 267 287 253 273 5 7 17 7 1 6 13 6 7 6 9 6 128 138 134 144 141 151 330 350 332 352 334 354 11 3 13 8 5 10 5 5 8 7 8 3 368 388 354 374 340 360 4 9 16 9 11 13 7 2 9 2 162 172 166 176 171 181 465 485 450 470 433 453 Based on 15 Methanol antifreeze solution 3 9 15 9 0 2 12 2 6 5 8 5 Full Load Cooling without HWG active 367 387 372 392 377 397 14 4 16 10 8 12 7 1 9 1 Full Load Heating without HWG active 4 8 Entering Water Temp oF Water Flow GPM ton Suction Pressure PSIG Discharge Pressure PSIG Superheat Subcooling Water Temp Rise oF Air Temp Suction Drop F Pr
18. as follows HR TD x GPM x 500 where TD is the temperature difference between the entering and leaving water and GPM is the flow rate in U S GPM determined by comparing the pressure drop across the heat exchanger to Tables 9a through 9b f Check air temperature drop across the air coil when compressor is operating Air temperature drop should be between 15 F and 25 F 8 C and 14 C g Turn thermostat to OFF position A hissing noise indicates proper functioning of the reversing valve 6 Allow five 5 minutes between tests for pressure to equalize before beginning heating test a Adjust the thermostat to the lowest setting Place the thermostat mode switch in the HEAT position b Slowly raise the thermostat to a higher temperature until the compressor activates c Check for warm air delivery within a few minutes after the unit has begun to operate d Referto Table 10 Check the temperature of both entering and leaving water If temperature is within range proceed with the test If temperature is outside of the operating range check refrigerant pressures and compare to Tables 11 through 12 Verify correct water flow by comparing unit pressure drop across the heat exchanger versus the data in Tables 9a through 9b Heat of extraction HE can be calculated and compared to submittal data capacity pages The formula for HE for systems with water is as follows HE TD x GPM x 500 where TD is the temperature diff
19. be changed For airflow charts consult specifications catalog for the series and model of the specific unit If the unit is connected to existing ductwork a previous check should have been made to insure that the ductwork has the capacity to handle the airflow required for the unit If ducting is too small as in the replacement of a heating only system larger ductwork should be installed All existing ductwork should be checked for leaks and repaired as necessary Residential Packaged Units 60Hz Puron Rev 4 Jan 2012 Vertical Unit Location Units are not designed for outdoor installation Locate the unit in an INDOOR area that allows enough space for service personnel to perform typical maintenance or repairs without removing unit from the mechanical room closet Vertical units are typically installed in a mechanical room or closet Never install units in areas subject to freezing or where humidity levels could cause cabinet condensation such as unconditioned spaces subject to 100 outside air Consideration should be given to access for easy removal of the filter and access panels Provide sufficient room to make water electrical and duct connection s If the unit is located in a confined space such as a closet provisions must be made for return air to freely enter the space by means of a louvered door etc Any access panel screws that would be difficult to remove after the unit is installed should be removed prio
20. clogging should be referenced in Table 3 Pressure Tank and Pump Use a closed bladder type pressure tank to minimize mineral formation due to air exposure The pressure tank should be sized to provide at least one minute continuous run time of the pump using its drawdown capacity rating to prevent pump short cycling Discharge water from the unit is not contaminated in any manner and can be disposed of in various ways depending on local building codes e g recharge well storm sewer drain field adjacent stream or pond etc Most local codes forbid the use of sanitary sewer for disposal Consult your local building and zoning department to assure compliance in your area The pump should be sized to handle the home s domestic water load typically 5 9 gpm 23 41 I m plus the flow rate required for the heat pump Pump sizing and expansion tank must be chosen as complimentary items For example an expansion tank that is too small can causing premature pump failure due to short cycling Variable speed pumping applications should be considered for the inherent energy savings and smaller pressure tank requirements Water Control Valve Note the placement of the water control valve in figure 13 Always maintain water pressure in the heat exchanger by placing the water control valve s on the discharge line to prevent mineral precipitation during the off cycle Pilot operated slow closing valves are recommended to reduce water hammer If w
21. illustrate typical slow closing water control valve wiring for Taco 500 series ClimateMaster P N AVM and Taco SBV series valves Slow closing valves take approximately 60 seconds to open very little water will flow before 45 seconds Once fully open an end switch allows the compressor to be energized Only relay or triac based electronic thermostats should be used with slow closing valves When wired as shown the slow closing valve will operate properly with the following notations 1 The valve will remain open during a unit lockout 2 The valve will draw approximately 25 35 VA through the Y signal of the thermostat Note This valve can overheat the anticipator of an electromechanical thermostat Therefore only relay or triac based thermostats should be used Two stage Units Tranquility 27 TT two stage units should be designed with two parallel valves for ground water applications to limit water use during first stage operation For example at 1 5 gpm ton 2 0 I m per kW an 049 unit requires 6 gpm 23 l m for full load 2nd stage operation but only 4 gpm 15 l m during 1st stage operation Since the unit will operate on first stage 80 90 of the time significant water savings can be realized by using two parallel solenoid valves with two flow regulators In the example above stage one solenoid would be installed with a 4 gpm 15 l m flow regulator on the outlet while stage two would utilize a 2 gpm 8 l m f
22. line WHEN A VENT IS INSTALLED IN THE DRAIN LINE IT MUST BE LOCATED AFTER THE TRAP IN THE DIRECTION OF THE CONDENSATE FLOW Figure 6 Horizontal Condensate Connection 3 4 FPT Trap Depth 1 5 38mm s eR 94 PMG OE Os Copper by others 21 s per m drain slope Some units include a painted drain connection Using a threaded pipe or similar device to clear any excess paint accumulated inside this fitting may ease final drain line installation Rev 4 30 10B A CAUTION A CAUTION Ensure condensate line is pitched toward drain 1 4 inch per ft 21mm per m of run DUCT SYSTEM INSTALLATION Duct System Installation The duct system should be sized to handle the design airflow quietly Refer to Figure 3 for horizontal duct system details or figure 8 for vertical duct system details A flexible connector is recommended for both discharge and return air duct connections on metal duct systems to eliminate the transfer of vibration to the duct system To maximize sound attenuation of the unit blower the supply and return plenums should include internal fiberglass duct liner or be constructed from ductboard forthe first few feet Application of the unit to uninsulated ductwork in an unconditioned space is not recommended as the unit s performance will be adversely affected At least one 90 elbow should be included in the supply duct to reduce air noise If air noise or excessive air flow is a problem the blower speed can
23. pump is forced to operate even if there is no call for the HWG This mode may be beneficial to assist in purging the system of air during Initial start up When SW10 is in the OFF position the HWG will operate normally This switch is shipped from the factory in the OFF normal position NOTE If left in the On position for 5 minutes the pump control will revert to normal operation SW11 HWG TEMP The control setpoint of the HWG can be set to either of two temperatures 125 F or 150 F When SW11 is in the ON position the HWG setpoint is 150 F When SW11 is in the OFF position the HWG setpoint is A WARNING A WARNING USING A 150 F SETPOINT ON THE HWG WILL RESULT IN WATER TEMPERATURES SUFFICIENT TO CAUSE SEVERE PHYSICAL INJURY IN THE FORM OF SCALDING OR BURNS EVEN WHEN THE HOT WATER TANK TEMPERATURE SETTING IS VISIBLY SET BELOW 150 F THE 150 F HWG SETPOINT MUST ONLY BE USED ON SYSTEMS THAT EMPLOY AN APPROVED ANTI SCALD VALVE PART NUMBER AVAS4 AT THE HOT WATER STORAGE TANK WITH SUCH VALVE PROPERLY SET TO CONTROL WATER TEMPERATURES DISTRIBUTED TO ALL HOT WATER OUTLETS ATA TEMPERATURE LEVEL THAT PREVENTS SCALDING OR BURNS Hot W ater Generator ANTI SCALD COLD WATER VALVE PIPING SUPPLY CONNECTIONS CHECK VALVE ANTI SCALD VALVE Ne HOT WATER TO HOUSE WATER HEATER 125 F This switch Is shipped from the factory in the OFF 125 F position SW12 HWG STATUS This switch controls operatio
24. static 0 15 in w g 37P a on medium speed and rated airflow at a higher static 0 4 to 0 5 in w g 100 to 125 Pa on high speed for applications where higher static is required Low speed will deliver approximately 8596 of rated airflow at 0 10 in w g 25 Pa Figure 16 GT PX GT PG Single Phase Line Voltage Field Wiring un Unit Power Supply see electrical table for wire and breaker size Special Note for AHRI Testing To achieve rated airflow for AHRI testing purposes on all PSC products it is necessary to change the fan speed to HI speed When the heat pump has experienced less than 100 operational hours and the coil has not had sufficient time to be seasoned it is necessary to clean the coil with a mild surfactant such as Calgon to remove the oils left by manufacturing processes and enable the condensate to properly sheet off of the coil Figure 17 PSC Motor Speed Selection Connect the blue wire to H for High speed fan M for Medium speed fan Blu eee L for Low speed fan Medium is factory setting Fan Motor HWG Wiring Split Units Only The hot water generator pump power wiring is disabled at the factory to prevent operating the HWG pump dry After all HWG piping is completed and air purged from the water piping the pump power wires should be applied to terminals on the HWG power block PB2 as shown in the unit wiring diagram This connection can also serve as a HWG disable when servicing t
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26. with ALL applicable codes and regulations Vertical Installation Figure 7 Vertical Unit Mounting Air Pad or extruded polystyrene insulation board B Figure 8 Typical Vertical Unit Installation Using Ducted Return Air Internally insulate supply duct for first 1 2 m each way to reduce noise Use turning vanes in supply transition Flexible canvas duct connector to reduce noise and vibration __ Rounded return transition Rev 6 2 09S Internally insulate return transition duct to reduce noise Residential Packaged Units 60Hz Puron Rev 4Jan 2012 Vertical Installation Sound Attenuation for Vertical Units Sound attenuation Condensate Piping for Vertical Units Vertical units utilize is achieved by enclosing the unit within a small mechanical a condensate hose inside the cabinet as a trapping loop room or a closet Additional measures for sound control therefore an external trap is not necessary Figure 10a shows include the following typical condensate connections Figure 10b illustrates the 1 Mount the unit so that the return air inlet is 90 to the internal trap for a typical vertical heat pump Each unit must be return air grille Refer to Figure 9 Install a sound baffle installed with its own individual vent where necessary and a as illustrated to reduce line of sight sound transmitted means to flush or blow out the condensa
27. 1 5VAC Over under voltage shut down is a self resetting safety If the voltage comes back within range for at least 0 5 seconds normal operation is restored This is not considered a fault or lockout If the CXM is in over under voltage shutdown for 15 minutes the alarm relay will close Over under voltage shut down code 7 Unit Performance Sentinel UPS patent pending The UPS feature indicates when the heat pump is operating inefficiently A UPS condition exists when a In heating mode with compressor energized FP2 is greater than 125 F 52 C for 30 continuous seconds or b In cooling mode with compressor energized FP1 is greater than 125 F 52 C for 30 continuous seconds or c In cooling mode with compressor energized FP2 is less than 40 F 4 5 C for 30 continuous seconds If a UPS condition occurs the control will immediately go to UPS warning The status LED will remain on as if the control is in normal mode Outputs of the control excluding LED and alarm relay will NOT be affected by UPS The UPS condition cannot occur during a compressor off cycle During UPS warning the alarm relay will cycle on and off The cycle rate will be on for 5 seconds off for 25 seconds on for 5 seconds off for 25 seconds etc UPS warning code 8 Swapped FP1 FP2 thermistors During test mode the control monitors to see if the FP1 and FP2 thermistors are in the appropriate places If the control is in test mode the
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29. 6 5 8 5 16 22 Air Temp Rise F DB Based on 15 Methanol antifreeze solution 38 Residential Packaged Units 60Hz Puron Rev 4Jan 2012 Unit O perating Conditions Table 12 GT PG Series Typical Unit Operating Pressures and Temperatures Continued 024 Full Load Cooling without HWG active Full Load Heating without HWG active Entering Water Temp F Water Flow GPM ton Suction Pressure PSIG Discharge Pressure PSIG Superheat Subcooling Water Temp Rise oF Air Temp Drop F DB Suction Pressure PSIG Discharge Pressure PSIG Superheat Subcooling Water Temp Drop oF Air Temp Rise F DB 30 1 5 2 25 115 125 115 125 115 125 154 174 141 161 127 147 40 45 40 45 40 45 8 13 6 11 6 11 16 5 18 5 12 1 14 1 77 7 9 7 19 25 20 26 20 26 73 83 75 85 78 88 283 303 285 305 287 307 8 12 8 12 8 12 aaa 5 9 7 9 4 2 6 2 2 7 4 7 16 22 17 23 18 24 115 120 115 120 115 120 209 229 195 215 181 201 24 29 24 29 24 29 10 15 8 13 8 13 15 7 17 7 11 6 13 6 7 6 9 6 18 24 18 24 18 24 102 112 106 116 110 120 313 333 314 334 316 336 8 12 8 12 8 12 8 9 10 9 6 7 8 7 4 5 6 5 22 28 23 29 23 29 136 146 136 146 136 146 275 295 261 281 247 267 6 11 6 11 6 11 6 11 5 10 4 9 15 74 7 7 11 6 13 6 7 6 9 6 18 24 18 24 18 24 12
30. 69 489 448 468 427 447 Based on 15 Methanol antifreeze solution 048 6 11 6 11 6 11 6 11 5 10 4 9 14 16 11 13 7 9 16 22 16 22 16 22 Full Load Cooling without HWG active 175 185 177 187 180 190 393 413 401 421 409 429 19 24 20 25 22 27 17 6 19 6 13 2 15 2 8 7 10 7 36 42 37 43 38 44 Full Load Heating without HWG active Entering Water Temp F Water Flow GPM ton Suction Pressure PSIG Discharge Pressure PSIG Superheat Subcooling Water Temp Rise oF Air Temp Drop F DB Suction Pressure PSIG Discharge Pressure PSIG Superheat Subcooling Water Temp Drop F Air Temp Rise F DB 30 1 5 2 25 108 118 107 117 107 117 180 200 161 181 142 162 27 32 28 33 29 34 12 17 10 15 9 14 19 8 21 8 14 8 16 8 9 8 11 8 19 25 19 25 19 25 65 75 68 78 72 82 293 313 297 217 301 321 7 12 8 13 9 14 9 14 9 14 9 14 8 2 10 2 6 2 8 2 4 2 6 2 17 23 18 24 19 25 123 133 122 132 122 132 236 256 218 238 200 220 16 21 17 22 17 22 8 13 7 12 6 11 20 2 22 2 15 2 18 2 10 2 12 2 21 27 21 27 21 27 92 102 100 110 108 118 321 341 330 350 340 360 10 15 11 16 12 17 11 16 11 16 11 16 11 6 13 6 8 9 10 9 6 8 23 29 24 30 26 32 130 140 129 139 129 139 305 325 285 305 265 285 10 15 11 16 11 16 8 13 6 11 5 10 20 22 15 17
31. 8 138 134 144 141 151 340 360 342 362 344 364 9 14 9 14 9 14 11 3 13 3 8 5 10 5 5 8 7 8 27 34 28 35 28 35 140 150 140 150 140 150 361 381 347 367 333 353 6 11 6 11 6 11 6 11 5 10 4 9 14 9 16 9 11 13 7 2 9 2 18 24 18 24 18 24 144 154 144 154 144 154 460 480 445 465 428 448 Based on 15 Methanol antifreeze solution 6 11 6 11 6 11 6 11 4 9 4 9 13 9 15 9 10 2 12 2 6 5 8 5 17 23 17 23 17 23 Full Load Cooling without HWG active 162 172 166 176 171 181 370 390 376 396 383 403 14 19 15 20 16 21 eee ooeo ooo ooo ARRRBRROOO 14 4 16 4 10 8 12 8 7 1 9 1 32 40 84 42 84 42 Full Load Heating without HWG active Entering Water Temp F Water Flow GPM ton Suction Pressure PSIG Discharge Pressure PSIG Superheat Subcooling Water Temp Rise oF Air Temp Drop F DB Suction Pressure PSIG Discharge Pressure PSIG Superheat Subcooling Water Temp Drop oF Air Temp Rise F DB 30 1 5 2 25 116 126 115 125 115 125 146 166 138 158 128 148 27 32 27 32 27 32 7 13 6 11 6 11 19 6 21 6 14 3 16 3 8 10 16 22 17 23 17 23 69 79 73 83 76 86 275 295 277 297 279 299 7 12 7 12 7 12 6 11 6 11 6 11 7 2 9 2 5 4 7 4 3 5 5 5 16 22 17 23 17 23 129 139 128 138 128 138 217 237 203 223 189 209 6 11 5 10 5 10 20
32. 8 22 8 15 17 9 2 11 2 17 23 18 24 18 24 96 106 100 110 105 115 300 320 304 324 309 329 10 15 10 15 10 15 9 14 9 14 9 14 10 5 12 5 7 6 9 6 4 8 6 8 132 142 131 141 131 141 293 313 274 294 256 276 6 11 20 1 22 1 14 4 16 4 8 6 10 6 17 23 18 24 18 24 123 133 129 139 135 145 327 347 333 353 339 359 11 16 11 16 11 16 11 16 11 16 11 16 13 2 15 2 9 8 11 8 6 4 8 4 137 147 137 147 137 147 383 403 362 382 342 362 19 4 21 4 13 8 15 8 8 2 10 2 16 22 16 22 16 22 143 153 143 153 143 153 475 495 457 477 439 459 Based on 15 Methanol antifreeze solution 036 18 2 20 2 13 14 7 7 9 7 16 22 16 22 16 22 Full Load Cooling without HWG active 155 165 162 172 169 179 355 375 362 382 369 389 13 18 14 19 16 21 11 16 11 16 11 16 16 8 18 8 12 7 14 7 8 6 10 6 Full Load Heating without HWG active Entering Water Temp F Water Flow GPM ton Suction Pressure PSIG Discharge Pressure PSIG Superheat Subcooling Water Temp Rise F Air Temp Drop F DB Suction Pressure PSIG Discharge Pressure PSIG Superheat Subcooling Water Temp Drop oF Air Temp Rise F DB 30 1 5 2 25 117 127 116 126 116 126 142 162 134 154 124 144 33 38 33 38 33 38 8 14 7 12 7 12 19 3 21 1 13 8 15 8 7 4 9 4 15 22 15 22 15 22 69 79 73 83 76 86
33. C Clip JW3 jumper for antifreeze 10 F 12 C use B Ci Cl Cl heck fan motor operation and airflow restrictions Too high of external static Check static vs blower table Air Temperature out of range Too much cold vent air Bring entering air temp within design parameters Improper temperature limit setting 30 F vs 10 F 1 C vs 12 C Normal airside applications will require 30 F 1 C only Bad thermistor Blocked drain heck temp and impedance correlation per chart heck for blockage and clean drain Improper trap Poor drainage heck for piping slope away from unit heck slope of unit toward outlet C C Check trap dimensions and location ahead of vent C C P oor venting Check vent location Moisture on sensor Plugged air filter Check for moisture shorting to air coil Replace air filter Restricted Return Air Flow Under Voltage ind and eliminate restriction Increase return duct and or grille size power supply and 24VAC voltage before and during operation power supply wire size compressor starting Need hard start kit 24VAC and unit transformer tap for correct power supply voltage Over Voltage Heating mode LT2 gt 125 F 52 C power supply voltage and 24VAC before and during operation 24VAC and unit transformer tap for correct power supply voltage heck for poor air flow or overcharged unit Cooling Mode LT1 g
34. F Temp F GPM ton PSIG PSIG oF DB PSIG PSIG F DB i 110 120 177 197 36 41 15 20 20 2 22 2 21 27 61 71 290 310 12 18 9 14 8 10 19 25 30 a 109 119 162 182 37 42 13 18 15 17 21 27 65 75 292 312 12 18 10 15 6 8 20 26 107 117 147 167 38 43 11 16 9 7 11 7 22 28 68 78 296 316 12 18 10 15 4 6 21 27 128 138 246 266 18 23 11 16 21 23 22 28 88 98 320 340 11 17 13 18 11 7 13 7 26 32 128 138 228 248 19 24 9 14 15 6 17 6 23 29 96 106 330 350 11 17 11 16 9 11 27 33 127 137 210 230 20 25 6 11 10 2 12 2 24 30 105 115 338 358 11 17 9 14 6 8 29 35 134 144 305 325 9 14 11 16 20 8 22 8 23 29 118 128 355 375 10 16 14 19 15 2 17 2 33 39 133 143 289 309 9 14 9 14 15 4 17 4 23 29 130 140 368 388 12 18 13 18 11 7 13 7 35 41 131 141 273 293 9 14 6 11 10 12 23 29 141 151 380 400 15 21 11 16 8 10 37 43 140 150 390 410 10 15 11 16 19 6 21 6 22 28 158 168 401 421 9 15 13 18 19 5 21 5 41 47 139 149 373 393 10 15 9 14 14 5 16 5 168 178 412 432 10 16 12 17 14 8 16 8 43 49 138 148 355 375 10 15 6 11 9 3 11 3 178 188 423 443 12 18 12 17 10 12 45 51 144 154 488 508 10 15 9 14 18 4 20 4 143 153 468 488 10 15 6 11 13 6 15 6 142 152 448 468 9 14 5 10 8 8 10 8 Based on 15 Methanol antifreeze solution 42 Residential Packaged Units 60Hz Puron Rev 4Jan 2012 Preventive Maintenance Water Coil Maintenance Direct ground water applications only If the system is install
35. GT PX Series 50YDV 50YDH 50YDD Models GT PG Series SOYEV 50 YEH 50YED Models Installation Operation and Maintenance Instructions Residential Horizontal amp Vertical Packaged Geothermal Heat Pumps 97B0046N03 Revised 4 Jan 2012 Table of Contents Model Nomenclature Water Valve Wiring Storage Thermostat Wiring Pre Installation ECM Blower Control Horizontal Installation Blower Data Field Conversion of Air Discharge CXM Controls Duct System Installation CXM Control Features Condensate Piping Installation Unit Commissioning Vertical Installation and Operating Conditions Water Connections Unit and System Checkout Ground Loop Applications Unit Start Up Procedure Open Loop Ground Water Systems Unit Operating Conditions Water Quality Standards Preventive Maintenance Hot Water Generator Troubleshooting Electrical Line Voltage Functional Troubleshooting Electrical Power Wiring Troubleshooting Form Electrical Low Voltage Wiring Warranty Low Water Temperature Cutout Selection Revision History This page was intentionally left blank Residential Packaged Units 60Hz Puron Rev 4Jan 2012 Model Nomenclature General O verview 1 32 3 5 SJ VE IV OY 2T4 UNIT TYPE SIZE YE GT PG SINGLE STAGE PURON REFRIG 018 YD GT PX TWO STAGE PURON REFRIG M 036 CONFIGURATION e V VERTICAL UPFLOW 060 H HORIZONTAL 072 D VERTICAL DOWNFLOW A
36. IR FLOW CONFIGURATION ECM AIR FLOW CONFIGURATION PSC PACKAGING 1 SINGLE PACK DOMESTIC REVISION LEVEL 1 CURRENT REVISION VOLTAGE 3 208V 230V 1PH 60Hz VERTICAL UPFLOW 50YD 50YE ONLY OPTION RETURN DISCHARGE MOTOR VERTICAL UPFLOW OPTION RETURN DISCHARGE MOTOR HEAT EXCHANGER OPTIONS COATED AIR COIL STANDARD J LEFT TOP K RIGHT TOP TOP PSC TOP PSC W HOT WATER GENERATOR VERTICAL DOWNFLOW 50YD 50YE ONLY VERTICAL DOWNFLOW OPTION RETURN DISCHARGE MOTOR RETURN DISCHARGE MOTOR WHOLE HOUSE DEHUMIDIFICATION WHOLE HOUSE DEHUMIDIFICATION W HOT WATER GENERATOR J LEFT DOWN K RIGHT DOWN DOWN PSC DOWN PSC HORIZONTAL 50YD 50YE ONLY OPTION RETURN DISCHARGE MOTOR HORIZONTAL RETURN DISCHARGE MOTOR CONTROLS C CXM N RIGHT LEFT P RIGHT BACK w NOTE YEV070 not available with PSC motor LEFT RIGHT LEFT BACK NOTE Some options configurations not available on all series Please consult Specification Catalogs for model specific options Safety Warnings cautions and notices appear throughout this manual Read these items carefully before attempting any installation service or troubleshooting of the equipment DANGER Indicates an immediate hazardous situation which if not avoided will result in death or serious injury DANGER labels on unit access panels must be observed WARNING Indicates a pote
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38. PSIG PSIG Based on 15 Methanol antifreeze solution 072 Full Load Cooling without HWG active Full Load Heating without HWG active Entering Water Water Water Du rew Pressure Pressure Superheat Subcooling anga Pressure Pressure Superheat Subcooling EE Temp GPM Rise Drop PSIG PSIG PSIG PSIG ar ton F F 119 129 155 175 25 30 18 20 61 71 292 312 11 16 13 18 7 2 9 2 117 127 150 170 25 30 13 2 15 2 65 75 296 316 11 16 14 19 5 4 7 4 115 125 144 164 28 32 8 4 9 4 68 78 300 320 10 15 15 20 3 5 5 5 131 141 210 230 10 15 18 5 20 5 89 99 327 347 10 15 19 24 10 9 12 9 130 140 205 225 11 16 14 16 98 108 337 357 10 15 14 19 8 3 10 3 129 139 200 220 13 18 9 5 11 5 106 116 348 368 10 15 9 14 5 7 7 7 135 145 300 320 10 15 17 6 19 6 119 129 365 385 10 15 21 26 14 7 16 7 131 141 295 315 11 16 13 8 15 8 132 142 380 400 10 15 16 21 11 3 13 3 128 138 290 310 13 18 10 12 144 154 395 415 10 15 11 16 7 9 9 9 139 149 390 410 10 15 16 7 18 7 162 172 418 438 10 15 19 24 19 4 21 4 137 147 370 390 10 15 12 6 14 6 172 182 430 450 10 15 19 24 14 7 16 7 135 145 350 370 10 15 8 5 10 5 182 192 444 464 11 16 19 24 10 1 12 1 145 155 490 510 10 15 15 9 17 9 145 155 470 490 10 15 11 7 13 7 144 154 452 472 9 14 7 4 9 Suction Discharge Suction Discharge Based on 15 Methanol antifreeze solution Table 12 GT PG Series Typical Unit Operatin
39. Particulate Size and velocity of 1 8 m s t velocity of 1 8 m s Filtered for maximum 841 micron 0 84 mm Erosion Bo T ron IO BATH 20 mesh size Any particulate that is not removed can potentially 20 mesh ER clog components Notes Rev 4 6 2011 Closed Recirculating system is identified by a closed pressurized piping system Recirculating open wells should observe the open recirculating design considerations NR Application not recommended Na desian Mavimiim 16 Residential Packaged Units 60Hz Puron Rev 4Jan 2012 Hot W ater Generator The HWG Hot Water Generator or desuperheater option provides considerable operating cost savings by utilizing excess heat energy from the heat pump to help satisfy domestic hot water requirements The HWG is active throughout the year providing virtually free hot water when the heat pump operates in the cooling mode or hot water at the COP of the heat pump during operation in the heating mode Actual HWG water heating capacities are provided in the appropriate heat pump performance data Heat pumps equipped with the HWG option include a built in water to refrigerant heat exchanger that eliminates the need to tie into the heat pump refrigerant circuit in the field The control circuit and pump are also built in for residential equipment Figure 14 shows a typical example of HWG water piping connections on a unit with built in circulating pump This piping layout red
40. Screws Water Connection End Return Air Drain T Back Discharge Discharge Air Figure 5 Right Return Side to Back Connection End Return Air Water Connection End Discharge Air Residential Packaged Units 60Hz Puron Rev 4Jan 2012 Horizontal Installation Condensate Piping Horizontal Units Pitch the unit toward the drain as shown in Figure 2 to improve the condensate drainage On small units less than 2 5 tons 8 8 kW insure that unit pitch does not cause condensate leaks inside the cabinet Install condensate trap at each unit with the top of the trap positioned below the unit condensate drain connection as shown in Figure 6 Design the depth of the trap water seal based upon the amount of ESP capability of the blower where 2 inches 51mm of ESP capability requires 2 inches 51mm of trap depth As a general rule 1 1 2 inch 38mm trap depth is the minimum Each unit must be installed with its own individual trap and connection to the condensate line main or riser Provide a means to flush or blow out the condensate line DO NOT install units with a common trap and or vent Always vent the condensate line when dirt or air can collect in the line or a long horizontal drain line is required Also vent when large units are working against higher external static pressure than other units connected to the same condensate main since this may cause poor drainage for all units on the
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42. are rated for 450 psi 3101 kPa operating pressure The connections have a rubber gasket seal similar to a garden hose gasket which when mated to the flush end of most 1 threaded male pipe fittings provides a leak free seal without the need for thread sealing tape or joint compound Insure that the rubber seal is in the swivel connector prior to attempting any connection rubber seals are shipped attached to the swivel connector DO NOT OVER TIGHTEN or leaks may occur W ater Connection Installation The female locking ring is threaded onto the pipe threads which holds the male pipe end against the rubber gasket and seals the joint HAND TIGHTEN ONLY DO NOT OVERTIGHTEN Figure 11 Water Connections m Swivel Nut Hand Tighten usesecsess Pate Only Stainless steel Do Not snap ring Overtighten lt lt Gasket aN Brass Adaptor GROUND LOOP HEAT PUMP APPLICATIONS Figure 12 Typical Ground Loop Application Flow Controller Unit Power Se 0 a Disconnect Insulated Hose Kit Q High and ro Low Voltage o Knockouts ooo P T Plugs Rev 06 02 09S Vibration Isolation Pad A CAUTION A CAUTION The following instructions represent industry accepted installation practices for closed loop earth coupled heat pump systems Instructions are provided to assist the contractor in installing trouble free ground loops These instructions a
43. as the loop pump relay Residential Packaged Units 60Hz Puron Rev 4Jan 2012 Unit Commissioning And O perating Conditions Operating Limits Environment Units are designed for indoor installation only Never install units in areas subject to freezing or where humidity levels could cause cabinet condensation such as unconditioned spaces subject to 100 outside air Power Supply A voltage variation of 10 of nameplate utilization voltage is acceptable Determination of operating limits is dependent primarily upon three factors 1 return air temperature 2 water temperature and 3 ambient temperature When any one of these factors is at minimum or maximum levels the other two factors should be at normal levels to insure proper unit operation Extreme variations in temperature and humidity and or corrosive water or air will adversely affect unit performance reliability and service life Consult Table 8a for operating limits Table 8a Building Operating Limits Operating Limits pe GTR X ee GEBOT o c x p 9 Cooling Heating i Heating Air Limits Min ambient air DB 45 F 7 C 39 F 4 C 45 F 7 C 39 F 4 C Rated ambient air DB 80 6 F 27 C 68 F 20 C 80 6 F 27 C 68 F 20 C Max ambient air DB 110 F 43 C 85 F 29 C 110 F 43 C 85 F 29 C Min entering air DB WB 60 45 F 16 7 C 40 F 4 4 C 60 50 F 16 10 C 45 F 7 C Rated entering air DB WB 80 6 66 2 F 27
44. at exchanger is recommended In ground water situations where scaling could be heavy or where biological growth such as iron bacteria will be present an open loop system is not recommended Heat exchanger coils may over time lose heat exchange capabilities due to build up of mineral deposits Heat exchangers must only be serviced by a qualified technician as acid and special pumping equipment is required Desuperheater coils can likewise become scaled and possibly plugged In areas with extremely hard water the owner should be informed that the heat exchanger may require occasional acid flushing In some cases the desuperheater option should not be recommended due to hard water conditions and additional maintenance required Water Quality Standards Table 3 should be consulted for water quality requirements Scaling potential should be assessed using the pH Calcium hardness method If the pH 7 5 and the Calcium hardness is less than 100 ppm scaling potential is low If this method yields numbers out of range of those listed the Ryznar Stability and Langelier Saturation indecies should be calculated Use the appropriate scaling surface temperature for the application 150 F 66 C for direct use well water open loop and DHW desuperheater 90 F 32 F for indirect use A monitoring plan should be implemented in these probable scaling situations Other water quality issues such as iron fouling corrosion prevention and erosion and
45. ata for fuse sizes Consult wiring diagram for field connections that must be made by the installing or electrical contractor All final electrical connections must be made with a length of flexible conduit to minimize vibration and sound transmission to the building General Line Voltage Wiring Be sure the available power is the same voltage and phase shown on the unit serial plate Line and low voltage wiring must be done in accordance with local codes or the National Electric Code whichever is applicable Power Connection Line voltage connection is made by connecting the incoming line voltage wires to the L side of the contactor as shown in Figure 16 Consult Tables 4a through 4b for correct fuse size 208 Volt Operation All residential 208 230 Volt units are factory wired for 230 Volt operation The transformer may be switched to the 208V tap as illustrated on the wiring diagram by switching the red 208V and the orange 230V wires at the contactor terminal Blower Speed Selection Units with PSC Motor PSC Permanent Split Capacitor blower fan speed can be changed by moving the blue wire on the fan motor terminal block to the desired speed as shown in Figure 17 Optional ECM motor speeds are set via low voltage controls see ECM Blower Control Most units are shipped on the medium speed tap Consult specifications catalog for specific unit airflow tables Typical unit design delivers rated airflow at nominal
46. ater hammer persists a mini expansion tank can be mounted on the piping to help absorb the excess hammer shock Insure that the total VA draw of the valve can be supplied by the unit transformer For instance a slow closing valve can draw up to 35VA This can overload smaller 40 or 50 VA transformers depending on the other controls in the circuit A typical pilot operated solenoid valve draws approximately 15VA see Figure 22 Note the special wiring diagrams for slow closing valves Figures 23 amp 24 Flow Regulation Flow regulation can be accomplished by two methods One method of flow regulation involves simply adjusting the ball 13 14 Residential Packaged Units 60Hz Puron Rev 4Jan 2012 Ground W ater Heat Pump Applications valve or water control valve on the discharge line Measure the pressure drop through the unit heat exchanger and determine flow rate from tables 9a through 9c Since the pressure is constantly varying two pressure gauges may be needed Adjust the valve until the desired flow of 1 5 to 2 gom per ton 2 0 to 2 6 I m per kW is achieved A second method of flow control requires a flow control device mounted on the outlet of the water control valve The device is typically a brass fitting with an orifice of rubber or plastic material that is designed to allow a specified flow rate On occasion flow control devices may produce velocity noise that can be reduced by applying some back pressure fr
47. chart Replace Check pump operation or water valve operation setting Plugged strainer or filter Clean or replace Check water flow Adjust to proper flow rate Water temperature out of range Bring water temperature within design parameters Reduced air flow in cooling Check for dirty air filter and clean or replace Check fan motor operation and air flow restrictions Too high of external static Check static vs blower table Air temperature out of range Too much cold vent air Bring entering air temperature within design parameters Insufficient charge Too high of air flow Check for refrigerant leaks Check fan motor speed selection and air flow chart Poor performance Too high of air flow See Insufficient Capacity Check fan motor speed selection and airflow chart Unit oversized Recheck loads amp sizing Check sensible clg load and heat pump capacity Residential Packaged Units 60Hz Puron Rev 4 Jan 2012 Troubleshooting Form Date Customer Antifreeze Model Serial Loop type Complaint SAT HEATING CYCLE ANALYSIS y EXPANSION FILTER VALVE DRIER SAT FP2 HEATING FLASH FP1 F F LIQUID LINE GASLINE SENSOR Bet PSI WATERIN WATEROUT Look up pressure drop in poo O M or spec catalog to determine flow rate COOLING CYCLE ANALYSIS PSI SAT Refrigera
48. control will lockout with code 9 after 30 seconds if a The compressor is on in the cooling mode and the FP1 sensor is colder than the FP2 sensor or b The compressor is on in the heating mode and the FP2 sensor is colder than the FP 1 sensor Swapped FP1 FP2 thermistor code 9 Diagnostic Features The LED on the CXM board advises the technician of the current status of the CXM control The LED can display either the current CXM mode or the last fault in memory if in test mode If there is no fault in memory the LED will flash Code 1 when in test mode Residential Packaged Units 60Hz Puron Rev 4Jan 2012 CXM Controls CXM Control Start up Operation The control will not operate until all inputs and safety controls are checked for normal conditions The compressor will have a 5 minute anti short cycle delay at power up The first time after power up that there is a call for compressor the compressor will follow a 5 to 80 second random start delay After the random start delay and anti short cycle delay the compressor relay will be energized On all subsequent compressor calls the random start delay is omitted Table 6b Unit Operation T stat signal GT PX GT PG GT G GT PG GT G ECM fan ECM fan PSC fan G Fan only Fan only Fan only G YorYl Stage 1 heating Stage 1 heating Stage 1 heating G Y1 Y2 Stage 2 heating Stage 2 heating
49. d Therefore continuity on pressure switches for example can be checked at the board connector The thermistor resistance should be measured with the connector removed so that only the impedance of the thermistor is measured If desired this reading can be compared to the thermistor resistance chart shown in the CXM AOM manual An ice bath can be used to check calibration of the thermistor Outputs The compressor relay is 24VAC and can be verified using a voltmeter The fan signal is passed through the board to the external fan relay units with PSC motors only The alarm relay can either be 24VAC as shipped or dry contacts for use with DDC controls by clipping the J W1 jumper Electric heat outputs are 24VDC ground sinking and require a volt meter set for DC to verify operation The terminal marked 24VDC is the 24VDC supply to the electric heat board terminal EH1 is stage 1 electric heat terminal EH2 is stage 2 electric heat When electric heat is energized thermostat is sending a W input to the CXM controller there will be 24VDC between terminal 24VDC and EHI stage 1 electric heat and or EH2 stage 2 electric heat A reading of OVDC between 24VDC and EH1 or EH2 will indicate that the CXM board is NOT sending an output signal to the electric heat board Troubleshooting Test Mode Test mode can be entered for 20 minutes by shorting the test pins The CXM board will automatically exit test mode
50. e and verify any hot water generator HWG hanger or other accessory kit located in the compressor section or blower section A CAUTION A CAUTION DO NOT store or install units in corrosive environments or in locations subject to temperature or humidity extremes e g attics garages rooftops etc Corrosive conditions and high temperature or humidity can significantly reduce performance reliability and service life Always move and store units in an upright position Tilting units on their sides may cause equipment damage A CAUTION A CAUTION CUT HAZARD Failure to follow this caution may result in personal injury Sheet metal parts may have sharp edges or burrs Use care and wear appropriate protective clothing safety glasses and gloves when handling parts and servicing heat pumps Residential Packaged Units 60Hz Puron Rev 4 Jan 2012 Horizontal Unit Location Units are not designed for outdoor installation Locate the unit in an INDOOR area that allows enough space for service personnel to perform typical maintenance or repairs without removing unit from the ceiling Horizontal units are typically installed above a false ceiling or in a ceiling plenum Never install units in areas subject to freezing or where humidity levels could cause cabinet condensation such as unconditioned spaces subject to 100 outside air Consideration should be given to access for easy removal of the filter and access panels Pr
51. e power or fuel supply Initial Start Up 1 Make sure all valves in the HWG water circuit are fully open 2 Tum on the heat pump and allow it to run for 10 15 minutes 3 Set SW12 to the OFF position enabled to engage the HWG 4 The HWG pump should not run if the compressor is not running 5 The temperature difference between the water entering and leaving the HWG coil should be approximately 5 10 F 3 6 C 6 Allow the unit to operate for 20 to 30 minutes to insure that it is functioning properly Table 7 HWG Water Piping Sizes and Length Unit Nominal Nominal HWG Flow Tonnage gpm 1 5 0 6 50 2 0 0 8 50 2 5 1 0 50 3 0 1 2 50 3 5 1 4 50 4 0 1 6 45 5 0 2 0 25 1 2 Copper max length 3 4 Copper max length Maximum length is equivalent length in feet one way of type L cop per Residential Packaged Units 60Hz Puron Rev 4 Jan 2012 Electrical Line Voltage A WARNING A A CAUTION A WARNING To avoid possible injury or death due to CAUTION Use only copper conductors for field installed electrical shock open the power supply disconnect switch electrical wiring Unit terminals are not designed to accept and secure it in an open position during installation other types of conductors Table 4a GT PX 50YD Series Electrical Data 50YD Units ECM with Whole House All 50YD Units with Emerson ECM Fan Mot
52. ed the control will continue on as if no fault occurred If 3 consecutive faults occur without satisfying the thermostat input call the control will go into lockout mode The last fault causing the lockout will be stored in memory and can be viewed by going into test mode Note FP 1 FP2 faults are factory set at only one try Lockout In lockout mode the status LED will begin fast flashing The compressor relay is turned off immediately Lockout mode can be soft reset by turning off the thermostat or satisfying the call A soft reset keeps the fault in memory but resets the control A hard reset disconnecting power to the control resets the control and erases fault memory Lockout with emergency heat While in lockout mode if W becomes active CXM emergency heat mode will occur High pressure switch When the high pressure switch opens due to high refrigerant pressures the compressor relay is de energized immediately since the high pressure switch is in series with the compressor contactor coil The high pressure fault recognition is immediate does not delay for 30 continuous seconds before de energizing the compressor High pressure lockout code 2 Example 2 quick flashes 10 sec pause 2 quick flashes 10 sec pause etc Low pressure switch The low pressure switch must be open and remain open for 30 continuous seconds during on cycle to be recognized as a low pressure fault If the low pressure switch is o
53. ed in an area with a known high mineral content 125 P P M or greater in the water it is best to establish a periodic maintenance schedule with the owner so the coil can be checked regularly Consult the well water applications section of this manual for a more detailed water coil material selection Should periodic coil cleaning be necessary use standard coil cleaning procedures which are compatible with the heat exchanger material and copper water lines Generally the more water flowing through the unit the less chance for scaling Therefore 1 5 gpm per ton 2 0 I m per kW is recommended as a minimum flow Minimum flow rate for entering water temperatures below 50 F 10 C is 2 0 gpm per ton 2 6 I m per kW Water Coil Maintenance All other water loop applications Generally water coil maintenance is not needed for closed loop systems However if the piping is known to have high dirt or debris content it is best to establish a periodic maintenance schedule with the owner so the water coil can be checked regularly Dirty installations are typically the result of deterioration of iron or galvanized piping or components in the system Open cooling towers requiring heavy chemical treatment and mineral buildup through water use can also contribute to higher maintenance Should periodic coil cleaning be necessary use standard coil cleaning procedures which are compatible with both the heat exchanger material and copper water lines G
54. ed with construction dirt and debris which may cause system damage Residential Packaged Units 60Hz Puron Rev 4Jan 2012 General Information Inspection Upon receipt of the equipment carefully check the shipment against the bill of lading Make sure all units have been received Inspect the packaging of each unit and inspect each unit for damage Insure that the carrier makes proper notation of any shortages or damage on all copies of the freight bill and completes a common carrier inspection report Concealed damage not discovered during unloading must be reported to the carrier within 15 days of receipt of shipment If not filed within 15 days the freight company can deny the claim without recourse Note It is the responsibility of the purchaser to file all necessary claims with the carrier Notify your equipment supplier of all damage within fifteen 15 days of shipment Storage Equipment should be stored in its original packaging in a clean dry area Store units in an upright position at all times Stack units a maximum of 3 units high Unit Protection Cover units on the job site with either the original packaging or an equivalent protective covering Cap the open ends of pipes stored on the job site In areas where painting plastering and or spraying has not been completed all due precautions must be taken to avoid physical damage to the units and contamination by foreign material Physical damage and contam
55. enerally the more water flowing through the unit the less chance for scaling However flow rates over 3 gpm per ton 3 9 I m per kW can produce water or debris velocities that can erode the heat exchanger wall and ultimately produce leaks Hot Water Generator Coils See water coil maintenance for ground water units If the potable water is hard or not chemically softened the high temperatures of the desuperheater will tend to scale even quicker than the water coil and may need more frequent inspections In areas with extremely hard water a HWG is not recommended Filters Filters must be clean to obtain maximum performance Filters should be inspected every month under normal operating conditions and be replaced when necessary Units should never be operated without a filter Washable high efficiency electrostatic filters when dirty can exhibit a very high pressure drop for the fan motor and reduce air flow resulting in poor performance It is especially important to provide consistent washing of these filters in the opposite direction of the normal air flow once per month using a high pressure wash similar to those found at self serve car washes Condensate Drain In areas where airborne bacteria may produce a slimy substance in the drain pan it may be necessary to treat the drain pan chemically with an algaecide approximately every three months to minimize the problem The condensate pan may also need to be cleaned pe
56. erence the operating charts for pressures and temperatures Verify that air and water flow rates are at proper levels before servicing the refrigerant circuit Residential Packaged Units 60Hz Puron Rev 4Jan 2012 General If operational difficulties are encountered perform the preliminary checks below before referring to the troubleshooting charts Verify that the unit is receiving electrical supply power Make sure the fuses in the fused disconnect switches are intact After completing the preliminary checks described above inspect for other obvious problems such as leaking connections broken or disconnected wires etc If everything appears to be in order but the unit still fails to operate properly refer to the CXM Troubleshooting Process Flowchart or Functional Troubleshooting Chart CXM Board CXM board troubleshooting in general is best summarized as simply verifying inputs and outputs After inputs and outputs have been verified board operation is confirmed and the problem must be elsewhere Below are some general guidelines for troubleshooting the CXM control Field Inputs All inputs are 24VAC from the thermostat and can be verified using a volt meter between C and Y G O W 24VAC will be present at the terminal for example between Y and C if the thermostat is sending an input to the CXM board Sensor Inputs All sensor inputs are paired wires connecting each component to the boar
57. erence between the entering and leaving water and GPM is the flow rate in U S GPM determined by comparing the pressure drop across the heat exchanger to Tables 9a through 9b e Check air temperature rise across the air coil when compressor is operating Air temperature rise should be between 20 F and 30 F 11 C and 17 C f Check for vibration noise and water leaks 7 If unit fails to operate perform troubleshooting analysis see troubleshooting section If the check described fails to reveal the problem and the unit still does not operate contact a trained service technician to insure proper diagnosis and repair of the equipment When testing is complete set system to maintain desired comfort level BE CERTAIN TO FILL OUT AND RETURN ALL WARRANTY REGISTRATION PAPERWORK Unit Start U p Procedure Note If performance during any mode appears abnormal refer to the CXM section or troubleshooting section of this manual To obtain maximum performance the air coil should be cleaned before start up A 1096 solution of dishwasher detergent and water is recommended A WARNING A WARNING When the disconnect switch is closed high voltage is present in some areas of the electrical panel Exercise caution when working with energized equipment A CAUTION A CAUTION Verify that ALL water control valves are open and allow water flow prior to engaging the compressor Freezing of the coax or water lines can permane
58. essure PSIG Discharge Pressure PSIG Superheat Subcooling Water Temp Drop oF 30 1 5 2 25 3 20 19 19 30 29 156 176 148 168 138 158 25 30 25 30 25 30 22 1 24 1 6 8 18 8 0 5 12 5 69 79 73 83 76 86 293 313 297 317 300 320 7 12 7 12 7 12 14 19 14 19 14 19 8 9 10 9 6 7 8 7 4 5 6 5 1 5 29 28 225 245 211 231 197 217 15 20 15 20 15 20 21 9 23 9 6 1 18 1 0 3 12 3 96 106 100 110 105 115 322 342 326 346 331 351 10 15 10 15 10 15 17 22 17 22 17 22 12 2 14 9 3 11 3 6 4 8 4 2 302 322 283 303 265 285 9 14 9 14 9 14 21 5 23 5 5 8 123 133 129 139 135 145 352 372 358 378 364 384 11 16 11 16 11 16 19 24 19 24 19 24 15 17 11 6 13 6 8 2 10 2 390 410 369 389 349 369 7 12 8 13 8 13 157 167 169 179 181 191 Based on 15 Methanol an Entering Water Temp oF 488 508 467 487 447 467 ifreeze solution 7 12 8 13 8 13 4 3 3 5 4 4 8 7 7 8 3 3 8 8 13 Full Load Cooling without HWG active 390 410 399 419 408 428 13 18 13 18 14 19 18 23 16 5 21 5 15 20 21 23 15 5 17 10 5 12 Full Load Heating without HWG active 5 5 Water Flow GPM ton Suction Pressure PSIG Discharge Pressure PSIG Superheat Subcooling Water Temp Rise oF Suction Pressure PSIG
59. est Mode CO Fault in memory Flashing Code 6 Test Mode Over Under shutdown in memory ing Code 5 ing Code 6 Flashing Code 7 ing Code 7 Test Mode UPS in memory Flashing Code 8 ing Code 8 Test Mode Swapped Thermistor hing Code 9 ing Code 9 Flash code 2 2 2 quick flashes 10 second pause 2 quick flashes 10 second pause etc On pulse 1 3 second off pulse 1 3 second Figure 27 Test Mode Pins Short test pins together to enter Test Mode and speed up e 36 ou timing and delays for e amp S49 BR BRG CCG CC Cm i m 20 minutes R Cm C JW3 N FPI Jw2 amp po 29 30 Residential Packaged Units 60Hz Puron Rev 4Jan 2012 CXM Controls Safety Features CXM Control The safety features below are provided to protect the compressor heat exchangers wiring and other components from damage caused by operation outside of design conditions Anti short cycle protection The control features a 5 minute anti short cycle protection for the compressor Note The 5 minute anti short cycle also occurs at power up Random start The control features a random start upon power up of 5 80 seconds Fault Retry In Fault Retry mode the Status LED begins slowly flashing to signal that the control is trying to recover from a fault input The control will stage off the outputs and then try again to satisfy the thermostat input call Once the thermostat input call is satisfi
60. for specific information on the current design and specifications Statements and other information contained herein are not express warranties and do not form the basis of any bargain between the parties but are merely Manufacturer s opinion or commendation of its products The management system governing the manufacture of Manufacturer s products is ISO 9001 2000 certified LSB Inc 2009
61. g Pressures and Temperatures 018 Full Load Cooling without HWG active Full Load Heating without HWG active Entering Water Suction Discharge Water Air Temp Suction Discharge Water Water Flow Pressure Pressure Superheat Subcooling Temp Rise Drop F Pressure Pressure Superheat Subcooling Temp Drop Temp F GPM ton PSIG PSIG F DB PSIG PSIG F 1 5 120 130 155 175 27 32 11 16 16 9 19 9 16 22 73 83 268 288 8 13 2 6 1 8 1 15 21 30 2 25 120 130 142 162 27 32 9 14 12 5 14 5 17 23 75 85 270 290 8 13 4 4 6 4 16 22 120 130 128 148 27 32 9 14 8 1 10 1 17 23 78 88 272 292 8 13 2 9 4 9 16 22 137 147 220 240 16 21 10 15 17 19 16 22 102 112 295 315 8 13 9 1 11 1 20 26 137 147 206 226 16 21 8 13 12 6 14 6 17 23 106 116 297 317 8 13 6 9 8 9 21 27 137 147 192 212 16 21 8 13 8 4 10 4 17 23 110 120 299 319 8 13 4 7 6 7 21 27 142 152 287 307 7 12 10 15 15 9 17 9 16 22 131 141 324 344 9 14 12 1 14 1 25 33 142 152 273 239 7 12 8 13 11 8 13 8 17 23 137 147 326 346 9 14 9 3 11 3 26 34 142 152 259 279 7 12 8 13 7 8 9 8 17 23 144 154 328 348 9 14 6 6 8 6 26 34 146 156 375 395 6 11 10 15 14 9 16 9 16 22 174 184 360 380 10 15 15 8 17 8 32 40 146 156 361 381 6 11 8 13 11 13 17 23 180 190 367 387 11 16 11 9 13 9 33 41 146 156 347 367 6 11 8 13 7 2 9 2 17 23 187 197 374 394 12 17 8 10 33 41 154 164 478 498 6 11 10 15 14 16 16 22 154 164 461 481 6 11 8 13 10 2 12 2 16 22 154 164 445 465 6 11 8 13
62. ged Units 60Hz Puron Rev 4Jan 2012 Unit O perating Conditions Table 11 GT PX Series Typical Unit Operating Pressures and Temperatures Continued 064 Full Load Cooling without HWG active Full Load Heating without HWG active Entering Water Water Water Temp Temp Rise Drop oF oF 1 5 117 127 170 190 27 32 15 20 18 2 20 2 66 76 282 302 10 16 9 14 8 10 2 25 116 126 143 163 28 33 13 18 12 6 14 6 69 79 285 305 10 16 9 14 6 8 115 125 135 155 29 34 12 17 7 9 72 82 289 309 10 16 10 15 4 6 128 138 238 258 16 21 14 19 20 5 22 5 90 100 310 330 11 17 12 17 11 3 13 3 126 136 222 242 21 26 13 18 14 9 16 9 95 105 313 333 11 17 12 17 8 5 10 5 125 135 205 225 26 31 12 17 9 2 11 2 99 109 316 336 11 17 12 17 5 7 7 7 135 145 315 335 10 15 14 19 21 23 115 125 337 357 12 18 14 19 14 16 134 144 296 316 12 17 13 18 15 5 17 5 2 120 130 341 361 12 18 14 19 10 6 12 6 133 143 276 296 15 20 11 16 10 12 126 136 345 365 12 18 15 20 7 3 9 3 139 149 408 428 10 15 15 20 20 1 22 1 157 167 390 410 15 20 14 19 18 2 20 2 138 148 386 406 10 15 13 18 14 8 16 8 161 171 394 414 15 20 14 19 13 9 15 9 138 148 364 384 10 15 11 16 9 5 11 5 166 176 398 418 15 20 15 20 9 6 11 6 144 154 515 535 8 13 14 19 19 21 143 153 493 513 8 13 13 18 14 16 142 152 469 489 8 13 12 17 9 11 Water Suction Discharge Flow Pressure Pressure Superheat Subcooling GPM ton PSIG PSIG Air Temp Suction Discharge Drop F Pressure Pressure Superheat Subcooling
63. he unit Residential Packaged Units 60Hz Puron Rev 4 Jan 2012 Thermostat Connections The thermostat should be wired directly to the CXM board units with PSC fan Units with optional ECM motor include factory wiring from the CXM board to the ECM interface board Thermostat wiring for these units should be connected to the ECM interface board Figure 18 shows wiring for 50Y D 50YE units with PSC or optional ECM motor See Electrical Thermostat for specific terminal connections Figure 18 GT PX GT PG Low Voltage Field Wiring ECM board will not be 4 present S Low voltage field wiring for units with ECM fan Electrical Low Voltage W iring Low Water Temperature Cutout Selection The CXM control allows the field selection of low water or water antifreeze solution temperature limit by clipping jumper J W3 which changes the sensing temperature associated with thermistor FP 1 Note that the FP1 thermistor is located on the refrigerant line between the coaxial heat exchanger and expansion device TXV Therefore FP1 is sensing refrigerant temperature not water temperature which is a better indication of how water flow rate temperature is affecting the refrigeration circuit The factory setting for FP1 is for systems using water 30 F 1 1 C refrigerant temperature In low water temperature extended range applications with antifreeze most ground loops jumper J W3 should be clipped as show
64. ications Table 2 Antifreeze Percentages by Volume Minimum Temperature for Low Temperature Protection Type 10 F 12 2 C 15 F 9 4 C 20 F 6 7 C 25 F 3 9 C Methanol 25 100 USP food grade Propylene Glycol 38 Ethanol 29 Must not be denatured with any petroleum based product 21 16 10 25 22 15 25 20 14 GROUND WATER HEAT PUMP APPLICATIONS Open Loop Ground Water Systems Typical open loop piping is shown in Figure 13 Shut off valves should be included for ease of servicing Boiler drains or other valves should be tee d into the lines to allow acid flushing of the heat exchanger Shut off valves should be positioned to allow flow through the coax via the boiler drains without allowing flow into the piping system P T plugs should be used so that pressure drop and temperature can be measured Piping materials should be limited to copper or PVC SCH80 Note Due to the pressure and temperature extremes PVC SCH40 is not recommended Water quantity should be plentiful and of good quality Consult table 3 for water quality guidelines The unit can be ordered with either a copper or cupro nickel water heat exchanger Consult table 3 for recommendations Copper is recommended for closed loop systems and open loop ground water systems that are not high in mineral content or corrosiveness In conditions anticipating heavy scale formation or in brackish water a cupro nickel he
65. ilter Units Only Cooling Mode Dehumid Mode Heating Mode Aux RUX Emerg Stg 1 Stg2 Fan Stg1 Stg2 Fan Stg1 Stg2 Fan CFM Mode 620 750 380 480 590 380 620 750 380 570 700 350 450 550 350 570 700 350 510 620 310 400 480 310 510 620 310 530 270 430 530 270 950 470 870 1060 470 850 420 780 950 420 770 360 670 820 390 670 300 570 690 340 1130 560 1000 1230 560 1000 500 900 1100 500 900 450 800 980 450 800 400 700 850 400 1400 700 1150 1400 700 1250 630 1020 1250 630 1080 540 890 1080 540 900 450 750 920 450 1580 790 1290 1580 790 1400 700 1150 1400 700 1280 640 1020 1240 640 1120 560 900 1080 560 1730 870 1520 1850 865 1550 780 1350 1650 775 1440 720 1190 1450 720 1280 640 1020 1250 640 2050 1030 1870 2280 1030 1830 910 1680 2050 910 1700 850 1480 1800 850 1580 790 1270 1550 790 2230 1100 1830 2230 1100 1950 980 1720 2100 980 1750 880 1670 1950 880 1580 790 1460 1780 790 750 700 650 650 1060 950 820 690 1230 1100 980 850 1400 1350 1350 1350 1580 1400 1350 1350 1850 1650 1450 e JN Juw A Jje N A je INI WIRITRP INJ A Je INJ A Je INJ AJe In wir ini wits e JN Jw A TRF IN juu A je IN WIR Jje INJ A Je INJ AJe INJ AJe INu AJe ini wis Bold nu
66. ination may prevent proper start up and may result in costly equipment clean up Examine all pipes fittings and valves before installing any of the system components Remove any dirt or debris found in or on these components Pre Installation Installation Operation and Maintenance instructions are provided with each unit Horizontal equipment is designed for installation above false ceiling or in a ceiling plenum Other unit configurations are typically installed in a mechanical room The installation site chosen should include adequate service clearance around the unit Before unit start up read all manuals and become familiar with the unit and its operation Thoroughly check the system before operation Prepare units for installation as follows 1 Compare the electrical data on the unit nameplate with ordering and shipping information to verify that the correct unit has been shipped 2 Keepthe cabinet covered with the original packaging until installation is complete and all plastering painting etc is finished 3 Verify refrigerant tubing is free of kinks or dents and that it does not touch other unit components 4 Inspect all electrical connections Connections must be clean and tight at the terminals 5 Remove any blower support packaging water to air units only 6 Loosen compressor bolts on units equipped with compressor grommet vibration isolation until the compressor rides freely on the grommets 7 Locat
67. iping is complete and purged of air Water Freezing of the coax or water lines can permanently piping is clean Q Antifreeze has been added if necessary damage the heatpump Q Entering water and air Insure that entering water and air temperatures are within operating limits of Table 8 A CA UTION A Q Low water temperature cutout Verify that low water R temperature cut out on the CXM DXM control is properly CAUTION To avoid equipment damage DO NOT set leave system filled in a building without heat during the Q Unit fan Manually rotate fan to verify free rotation and winter unless antifreeze is added to the water loop Heat insure that blower wheel is secured to the motor shaft exchangers never fully drain by themselves and will Be sure to remove any shipping supports if needed freeze unless winterized with antifreeze DO NOT oil motors upon start up Fan motors are pre oiled at the factory Check unit fan speed selection and compare to design requirements Q Condensate line Verify that condensate lineis open and Unit Start up Procedure properly pitched toward drain ca 1 Turn the thermostat fan position to ON Blower Q HWG pump is disconnected unless piping is completed should start and air has been purged from the system 2 Balance air flow at registers Q Water flow balancing Record inlet and outlet water 3 Adjust all valves to their full open position Turn on the temperatures for each heat pump upon startup This line power t
68. its Min entering water 30 F 1 C 20 F 6 7 C Normal entering water 50 110 F 10 43 C 30 70 F 1 to 21 C Max entering water 120 F 49 C 90 F 32 C 1 5 to 3 0 gpm ton 1 6 to 3 2 l m per kW If with active Whole House Dehumidification 70 61 F 21 16 C Normal Water Flow 33 Residential Packaged Units 60Hz Puron Rev 4Jan 2012 Unit Start Up and O perating Conditions Flow Controller pump s Verify that the pump s is wired purged of air and in operating condition Q System controls Verify that system controls function and Unit and System Checkout a BEFORE POWERING SYSTEM please check the following 34 UNIT CHECKOUT Q Balancing shutoff valves Insure that all isolation valves Q Low water temperature cutout Verify that low water are open and water control valves are wired temperature cut out controls are set properly Q Line voltage and wiring Verify that voltage is within FP 1 J W3 an acceptable range for the unit and wiring and fuses Q Miscellaneous Note any questionable aspects of breakers are properly sized Verify that low voltage wiring the installation is complete Q Unit control transformer Insure that transformer has the properly selected voltage tap Residential 208 230V units A CA UTION A T wired for 230V operation unless specified CAUTION Verify that ALL water control valves are open TN ERE and allow water flow prior to engaging the compressor Q Se ck p
69. low regulator When stage one is operating the second solenoid valve will be closed When stage two is operating both valves will be open allowing full load flow rate Figure 23 illustrates piping for two stage solenoid valves Review figures 20 22 for wiring of stage one valve Stage two valve should be wired between terminal Y2 ECM board and terminal C Note When EWT is below 50 F 10 C a minimum of 2 gpm per ton 2 6 I m per kW is required Figure 21 AVM Valve Wiring Y1 Oo 2 AVM 1 3 SAAN Switch Taco Valve gt Thermostat Q Q Figure 22 Taco SBV Valve Wiring Capacitor Motor End Switch TACO SBV VALVE Figure 23 Two Stage Piping Solenoid Valve Flow Regulator From Water Source To Discharge Stage 1 NOTE Shut off valves strainers and other required components not shown Residential Packaged Units 60Hz Puron Rev 4 Jan 2012 A CAUTION A CAUTION Many units installed with a factory or field supplied manual or electric shut off valve DAMAGE WILL OCCUR if shut off valve is closed during unit operation A high pressure switch must be installed on the heat pump side of any field provided shut off valves and connected to the heat pump controls in series with the built in refrigerant circuit high pressure switch to disable compressor operation if water pressure exceeds pressure switch se
70. mbers indicate factory settings During Auxiliary operation the CFM will run at the higher of the Heating Delay jumper or AUX settings Airflow is controlled within 5 up to the Max ESP shown with wet coil Do not select Dehumidification mode if HP CFM is on setting 1 All units AHRI ISO ASHRAE 13256 1 rated HP CFM Setting 3 Note See the ECM Blower Control section for information on setting taps Residential Packaged Units 60Hz Puron Rev 4 Jan 2012 CXM Control For detailed control information see CXM Application Operation and Maintenance AOM manual part 97B0003N12 Field Selectable Inputs Test mode Test mode allows the service technician to check the operation of the control in a timely manner By momentarily shorting the test terminals the CXM control enters a 20 minute test mode period in which all time delays are sped up 15 times Upon entering test mode the status LED will flash a code representing the last fault For diagnostic ease at the thermostat the alarm relay will also cycle during test mode The alarm relay will cycle on and off similar to the status LED to indicate a code representing the last fault at the thermostat Test mode can be exited by shorting the test terminals for 3 seconds Retry Mode If the control is attempting a retry of a fault the status LED will slow flash slow flash one flash every 2 seconds to indicate the control is in the process of retrying Field Configurati
71. n in Figure 19 to change the setting to 10 F 12 2 C refrigerant temperature a more suitable temperature when using an antifreeze solution All residential units include water refrigerant circuit insulation to prevent internal condensation which is required when operating with entering water temperatures below 59 F 15 C Figure 19 FP1 Limit Setting e BR BRG CCG CC c Comp C e pins Relay Test La J W3 FP1 R jumper should JWws FPi be clipped for Jw2 rp low temperature CXM PCB operation 21 22 Residential Packaged Units 60Hz Puron Rev 4Jan 2012 Electrical Low Voltage W iring Accessory Connections A terminal paralleling the compressor contactor coil has been provided on the CXM control Terminal A is designed to control accessory devices such as water valves Note This terminal should be used only with 24 Volt signals and not line voltage Terminal A is energized with the compressor contactor See Figure 20 or the specific unit wiring diagram for details Figure 20 Accessory Wiring Terminal Strip Orm Typical Water Valve A Water Solenoid Valves An external solenoid valve s should be used on ground water installations to shut off flow to the unit when the compressor is not operating A slow closing valve may be required to help reduce water hammer Figure 20 shows typical wiring for a 24VAC external solenoid valve Figures 21 and 22
72. n of the HWG When SW12 is in the ON position the HWG is disabled and will not operate When SW12 is in the OFF position the HWG is in the enabled mode and will operate normally This switch is shipped from the factory in the ON disabled position CAUTION DO NOT PLACE THIS SWITCH IN THE ENABLED POSITION UNITL THE HWG PIPING IS CONNECTED FILLED WITH WATER AND PURGED OR PUMP DAMAGE WILL OCCUR When the control is powered and the HWG pump output is not active the status LED AN1 will be On When the HWG pump output is active for water temperature sampling or HWG operation the status LED will slowly flash On 1 second Off 1 second If the control has detected a fault the status LED will flash a numeric fault code as follows Hot Water Sensor Fault 1 flash Compressor Discharge sensor fault 2 flashes High Water Temperature 21609F 3 flashes Control Logic Error 4 flashes Fault code flashes have a duration of 0 4 seconds with a 3 second pause between fault codes For example a Compressor Discharge sensor fault will be four flashes 0 4 seconds long then a 3 second pause then four flashes again etc 17 18 Residential Packaged Units 60Hz Puron Rev 4Jan 2012 Hot W ater Generator Warning The HWG pump Is fully wired from the factory Use extreme caution when working around the microprocessor control as it contains line voltage connections that presents a shock hazard that can cause severe inj
73. ne ejsu ILO oq 0j Iojar oseo q C D eourAoid uerpeur oj oourAoJd uvrpeut WO pue 9jejs 0 9jjs uro1j ATRA YOTYA SYFU 190 oAeq ose ew noA pur sju3u jega oyroods noX soars Ajuenma sm nok oj A dde jou Kew suonejrun pue suorsnjoxo Surosaioy ou os sogeurep ejuoprour 10 enuonbosuoo jo suorsnpoxo JO uorejruip ou JO sjse Aue pordurr ue Suo moy uo suonejmu MOTTE JOU op soourAoid uerpeue JO sojejs IWS HLON OCGC SVL SOP GLIEL vuoqepio AUD PWOPO 19ANS Wry MS OOEL IMAS IWON v2 10 oym oouvuuo god Kyuexrem Surureiqo ur pombal st oouvjstsse J Uorrztues1o ooIA1os 10 Jo vop 10 nqustp poztudooar 19111v Kuv JRIUOD o qe reAeun oq ao visur oq PINOYS JUNO ot 10J oouvunojod Kyuexe optaoid IA sionpoid oq poj eisur OYM uoneziues1o o21AJ9 10 Jo eop op J TEULON SONVINSOJ33d XINVSNVA SNINIVLSO ALFIIS VITILOISLES SV YO HONHOTTIOGHN S WHIWHVO 380 SHH LHHA LAOL NI YO ALNV NAVM AAMINI YO SSH IdXH ANV HO HOVE2IG UOA LOV3INOO NI HOVWVG TVLNSGIONI YO TWILNANOASNOD AOA ALFIISVET ANV SAANTOXA ANY SIV TOSKI XTISSH2IdXH AALAAVO RO Jo onus opos oq puooq uoseo1 1940 amp ue 10 poo Jo soe 1oqe 10 erojeur ony tuoneyodsuea Jo sogeuoqs juoproot poop ory soSeddojs yO 10 SINUS sjurnso1 JO SUONSLSAI JUSUUIOAOS SAUN IATO Jem Aue 0 pourr jou jnq se qons juoAo Aue q ju9jxo Aue 0 pojuoAoi1d st JO uoseo1 Aue 10 po v op st ooueunoj1od s ep J soSeurep Kuv Joy Aj Iqei ou savy preys JOLIN ALFIISVETAO NOLLVLIATT
74. ng This may be accomplished by flushing water through the HWG as In Figures 14 and 15 or by Installing an air vent at the high point of the HWG piping system 2 Insulate all HWG water piping with no less than 3 8 10mm wall closed cell insulation 3 Open both shut off valves and make sure the tank drain valve is closed Water Tank Refill 1 Close valve 4 Ensure that the HWG valves valves 2 and 3 are open Open the cold water supply valve 1 to fill the tank through the HWG piping This will purge air from the HWG piping 2 Open a hot water faucet to vent air from the system until water flows from faucet turn off faucet Open valve 74 3 Depress the hot water tank pressure relief valve handle to ensure that there is no air remaining in the tank 4 Inspect all work for leaks 5 Before restoring power or fuel supply to the water heater adjust the temperature setting on the tank thermostat s to insure maximum utilization of the heat available from the refrigeration system and conserve the most energy On tanks with both upper and lower elements and thermostats the lower element should be turned down to 100 F 38 C or the lowest setting the upper element should be adjusted to 120 130 F 49 54 C Depending upon the specific needs of the customer you may want to adjust the upper element differently On tanks with a single thermostat a preheat tank should be used Fig 15 6 Replace access cover s and restor
75. nit series and model to correlate speed tap setting to airflow in CFM Auxiliary Emergency Heat Settings The auxiliary emergency heat setting determines the CFM when the unit is in auxiliary heat or emergency heat mode This setting is used for residential units with internal electric heat When auxiliary electric heat is energized i e compressor and electric heat the greater of the auxiliary emergency or heating setting will be used A G fan signal must be present from the thermostat for electric heat to operate Consult the submittal data or specifications catalog for the specific unit series and model to correlate speed tap setting to airflow in CFM CEM Adjust Settings The CFM adjust setting allows four selections The NORM setting is the factory default position The or settings adjust the airflow by 15 The settings are used to fine tune airflow adjustments The TEST setting runs the ECM motor at 70 torque which causes the motor to operate like a standard PSC motor and disables the CFM counter Dehumidification Mode Settings The dehumidification mode setting provides field selection of humidity control When operating in the normal mode the cooling airflow settings are determined by the cooling tap setting above When dehumidification is enabled there is a reduction in airflow in cooling to increase the moisture removal of the heat pump Consult submittal data or specifications catalog fo
76. ns Operation outside these limits is not recommended Scaling indexes should be calculated at 66 C for direct use and HWG applications and at 32 C for indirect HX use A monitoring plan should be implemented Ryznar 6 0 7 5 Stability Index If 27 5 minimize steel pipe use Langelier If lt 0 5 minimize steel pi bus di 66 C HWG and U o minimize steel pipe use basea upon an Saturation Index Direct well 29 C Indirect Well HX Iron Fouling Iron Fe Ferrous 0 2 ppm Ferrous Bacterial Iron potential If Fe ferrous gt 0 2 ppm with pH 6 8 O2 5 ppm check for iron bacteria ea LL a o 1 0 5 ppm of Oxygen Iron Fouling Above this level deposition will occur Corrosion Prevention 6 8 5 6 8 5 H F Monitor treat as Minimize steel pipe below 7 and no open tanks with pH lt 8 needed p so lt 0 5 ppm At H5S 0 2 ppm avoid use of copper and copper nickel piping or HX s Hydrogen Sulfide H2S 2 Rotten egg smell appears at 0 5 ppm level Copper alloy bronze or brass cast components are OK to lt 0 5 ppm Ammonia ion as hydroxide chloride nitrate and sulfate compounds lt 0 5 ppm Maximum Allowable at maximum water temperature 24 C Maximum Copper lt 20ppm Chloride Levels Cupronickel lt 150 ppm 304 SS lt 400 ppm 316 SS lt 1000 ppm Titanium gt 1000 ppm Erosion and Clogging lt 10 ppm of particles and a maximum lt 10 ppm lt 1 ppm sandfree for reinjection of particles and a maximum
77. nt Type HFC 410A denk E M COMPRESSOR EXPANSION FILTER VALVE DRIER DISCHARGE Voltage Comp Amps oF Total Amps Y PSI SAT FP2 FLASH OTHERSIDE FP1 CLG F F GAS LINE OFFILTRDR LIQLINE PSI PSI WATERIN WATEROUT Look up pressure drop in pn 1 0 M or spec catalog to determine flow rate Heat of Extraction Absorption or Heat of Rejection flow rate gpm x temp diff deg F x fluidfacto __ Btu hr Superheat Suction temperature suction saturation temp deg F Subcooling Discharge saturation temp liquid line temp deg F t Use 500 for water 485 for antifreeze Rev 12 08 Note Never connect refrigerant gauges during startup procedures Conduct water side analysis using P T ports to determine water flow and temperature difference If water side analysis shows poor performance refrigerant troubleshooting may be required Connect refrigerant gauges as a last resort 47 Residential Packaged Units 60Hz Puron Rev 4Jan 2012 W arranty HQ YQVOLVQEVOQVOLOQVOLOQVOLOQVOLQQVOQQOLOQVOLY O QOQQOQOQQOQQ0Q0000000000000000000000000000 Q2 SOAR AGI III n 9l Pl gl l ol lC pl ol IAI IAI IAI ISI pl ol gl Plo p ol nl p af m v16 070707076 6 670 6 6 6 6 UU 6 o o 66 o o o o o o oo o Joe oe eee eo ee 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 4 VECVO ON Hed 01 9 PAT suononngsur oouvuojureur pue 3urjeredo Joy enue ooueuojureJAr pue uoreede uo
78. ntially hazardous situation which if not avoided could result in death or serious injury A WARNING A WARNING The Puron Application and Service Manual should be read and understood before attempting to service refrigerant circuits with HFC 410A A WARNING A WARNING To avoid the release of refrigerant into the atmosphere the refrigerant circuit of this unit must be serviced only by technicians who meet local state and federal proficiency requirements Rev Jan 4 2012 CAUTION Indicates a potentially hazardous situation or an unsafe practice which if not avoided could result in minor or moderate injury or product or property damage NOTICE Notification of installation operation or maintenance information which is important but which is not hazard related A WARNING A WARNING All refrigerant discharged from this unit must be recovered WITHOUT EXCEPTION Technicians must follow industry accepted guidelines and all local state and federal statutes for the recovery and disposal of refrigerants If a compressor is removed from this unit refrigerant circuit oil will remain in the compressor To avoid leakage of compressor oil refrigerant lines of the compressor must be sealed after it is removed A CAUTION A CAUTION To avoid equipment damage DO NOT use these units as a source of heating or cooling during the construction process The mechanical components and filters will quickly become clogg
79. ntly damage the heat pump 35 Residential Packaged Units 60Hz Puron Rev 4 Jan 2012 U nit O perating C onditions Table 9a GT PX Coax Water Pressure Drop Table 9b GT PG Coax Water Pressure Drop Pressure Drop psi Pressure Drop psi 50 F 70 F 1 3 2 6 3 4 43 1 0 2 5 4 2 5 2 50 F 70 F Table 10 Water Temperature Change Through Heat Exchanger Rise Cooli Drop Heati Water Flow gpm I m ECC ECC S For Closed Loop 9 12 4 8 Systems at 3 gpm per ton 3 9 I m per kw 5 6 7 2 2 4 4 Antifreeze Correction Table Cooling Heating Antifreeze WED Antifreeze Type EWT 90 F EWT 30 F Corr Fct E EWT 30 F Total Cap Sens Cap Htg Cap Power Water 1 000 1 000 1 000 1 000 1 000 0 995 0 995 0 989 0 997 1 070 Propylene Glycol 0 986 0 986 0 968 0 990 1 210 0 978 0 978 0 947 0 983 1 360 0 997 0 997 0 989 0 997 1 070 Methanol 0 990 0 990 0 968 0 990 1 160 0 982 0 982 0 949 0 984 1 220 0 998 0 998 0 981 0 994 1 140 Ethanol 0 994 0 994 0 944 0 983 1 300 0 986 0 986 0 917 0 974 1 360 0 998 0 998 0 993 0 998 1 040 Ethylene Glycol 0 994 0 994 0 980 0 994 1 120 0 988 0 988 0 966 0 990 1 200 36 Residential Packaged Units 60Hz Puron Rev 4Jan 2012 Unit O perating Conditions Table 11 GT PX Series Typical Unit Operating Pressures
80. number ATP 32U04 See Whole House Dehumidification AOM for more details Electrical Thermostat W iring Figure 24 Units With Optional ECM Fan Connection to ECM Control ATP32U06 Thermostat Units with CXM or DXM board and ECM fan motor utilizing ECM dehumidification mode without ClimaDry option Notes 1 Units with whole house dehumidification option have slightly different thermostat wiring Terminal DH at the thermostat is connected to terminal H at the DXM board 2 ECM dehumidification mode slows down fan speed in the cooling mode when dehumidification output from thermostat is active Normal heating and cooling fan speeds are not affected 3 ECM board DIP switch SW9 must be in dehumid mode for ECM dehumidification mode Figure 25 Typical Thermostat 2 Heat 1 Cool PSC Fan Connection to CXM Control ATM21UO1 Thermostat 23 24 Residential Packaged Units 60Hz Puron Rev 4 Jan 2012 ECM Blower Control The ECM fan is controlled by an interface board that converts thermostat inputs and field selectable CFM settings to signals used by the ECM motor controller Units manufactured before J uly 2005 have version I P N 69243707 Units manufactured between J uly 2005 and May 11 2009 have version II P N 17B0019N 01 Fan speeds are selected with jumpers for version or via a nine position DIP Switch for version Il and Ill To take full advantage of the ECM motor features a multi stage thermostat
81. o all heat pump units check can eliminate nuisance trip outs and high velocity 4 Room temperature should be within the minimum water flow that could erode heat exchangers maximum ranges of Table 8b During start up checks Q Unit air coil and filters Insure that filter is clean and loop water temperature entering the heat pump should accessible Clean air coil of all manufacturing oils be between 30 F 1 C and 95 F 35 C Q Unit controls Verify that CXM field selection options are 5 Two factors determine the operating limits of water properly set Low voltage wiring is complete source heat pumps a return air temperature and b Q Blower speed is set water temperature When any one of these factors is ata Q Service access panels are in place minimum or maximum level the other factor must be at SYSTEM CHECKOUT system Air in the system can cause poor operation or system corrosion Water used in the system must be potable quality initially and clean of dirt piping slag and strong chemical cleaning agents Some antifreeze solutions may require distilled water operate in the proper sequence normal level to insure proper unit operation a Adjustthe unit thermostat to the warmest setting Q System water temperature Check water temperature Place the thermostat mode switch in the COOL for proper range and also verify heating and cooling set position Slowly reduce thermostat setting until the points for proper o
82. om the ball valve located on the discharge line Slightly closing the valve will spread the pressure drop over both devices lessening the velocity noise NOTE When EWT is below 50 F 10 C a minimum of 2 gpm per ton 2 6 l m per kW is required Water Coil Low Temperature Limit Setting Forall open loop systems the 30 F 1 1 C FP 1 setting factory setting water should be used to avoid freeze damage to the unit See Low Water Temperature Cutout Selection in this manual for details on the low limit setting Figure 13 Typical Open Loop Well Application Unit Power Disconnect Water Flow Control Regulator Air Pad or Extruded polystyrene insulation board P T Plugs Boiler Drains CAUTION Refrigerant pressure activated water regulating valves should never be used with this equipment Pressure Tank Water Out Shut Off Valve Filter A CAUTION A Water In Residential Packaged Units 60Hz Puron Rev 4 Jan 2012 W ater Q uality Standards Table 3 Water Quality Standards Water Quality HX Closed Parameter Material Recirculating Open Loop a d Recirculating wel Scaling Potential Primary Measurement Above the given limits scaling is likely to occur Scaling indexes should be calculated using the limits below prcaeium Warnes H lt 7 5 and Ca Hardness lt 100ppm Method E SUBE Index Limits for Probable Scaling Situatio
83. on Options Note In the following field configuration options jumper wires should be clipped ONLY when power is removed from the CXM control Water coil low temperature limit setting J umper 3 J W3 FP1 Low Temp provides field selection of temperature limit setting for FP1 of 30 F or 10 F 1 F or 12 C refrigerant temperature Not Clipped 30 F 1 C Clipped 10 F 12 C Air coil low temperature limit setting J umper 2 W2 FP2 Low Temp provides field selection of temperature limit setting for FP2 of 30 F or 10 F 1 F or 12 C refrigerant temperature Note This jumper should only be clipped under extenuating circumstances as recommended by the factory Not Clipped 30 F 1 C Clipped 10 F 12 C Alarm relay setting J umper 1 W1 AL2 Dry provides field selection of the alarm relay terminal AL2 to be jumpered to 24VAC orto be a dry contact no connection Not Clipped AL2 connected to R Clipped AL2 dry contact no connection DIP Switches Note In the following field configuration options DIP switches should only be changed when power is removed from the CXM control DIP switch 1 Unit Performance Sentinel Disable provides field selection to disable the UPS feature On Enabled Off Disabled DIP switch 2 Stage 2 Selection provides selection of whether compressor has an on delay If set to stage 2 the compressor will have a 3 second delay before energizing Also if
84. on in test mode Set for cooling demand and check 24VAC on RV coil and at DXM2 board If RV is stuck run high pressure up by reducing water flow and while operating engage and disengage RV coil voltage to push valve Thermostat setup Check for O RV setup not B Thermostat wiring Check O wiring at heat pump Jumper O and R for RV coil click when compressor starts Thermostat wiring Possible Cause Put thermostat in cooling mode Check 24 VAC on O check between C and O check for 24 VAC on W check between W and C There should be voltage on O but not on W If voltage is present on W thermostat may be bad or wired incorrectly Solution Insufficient capacity Not cooling or heating High Head Pressure Low Suction Pressure Low Discharge Air Temperature in Heating High humidity Dirty filter Replace or clean Reduced or no air flow in heating Check for dirty air filter and clean or replace Check fan motor operation and airflow restrictions Too high of external static Check static vs blower table Reduced or no air flow in cooling Check for dirty air filter and clean or replace Check fan motor operation and airflow restrictions Too high of external static Check static vs blower table Leaky duct work Check supply and return air temperatures at the unit and at distant duct registers if significantly different duct leaks are
85. ooling for a number of minutes to condition the loop to a homogenous temperature This is a good time for tool cleanup piping insulation etc Then perform final flush and pressurize the loop to a static pressure of 50 75 psi 345 517 kPa winter or 35 40 psi 241 276 kPa summer After pressurization be sure to loosen the plug at the end of the Grundfos loop pump motor s to allow trapped airto be discharged and to insure the motor housing has been flooded This is not required for Taco circulators Insure that the Flow Controller provides adequate flow through the unit by checking pressure drop across the heat exchanger and compare to the pressure drop tables at the back of the manual Antifreeze In areas where minimum entering loop temperatures drop below 40 F 5 C or where piping will be routed through areas subject to freezing antifreeze is required Alcohols and glycols are commonly used as antifreeze however your local sales manager should be consulted for the antifreeze best suited to your area Low temperature protection should be maintained to 15 F 9 C below the lowest expected entering loop temperature For example if 30 F 1 C is the minimum expected entering loop temperature the leaving loop temperature would be 25 to 22 F 4 to 6 C and low temperature protection should be at 15 F 10 C Calculation is as follows 30 F 15 F 15 F 1 C 9 C 10 C All alcohols should be premixed and pum
86. or 50YD Units ECM Standard Dehumidification Whole Min House ClimaDry Min Circuit Dehumid Pump Circuit Amps Pump FLA Amps FLA 21 2 30 0 8 22 0 29 2 45 0 8 30 0 37 8 50 1 07 38 9 1 07 38 0 44 4 1 07 39 6 46 4 Rated Voltage of 208 230 60 1 Min Max Voltage of 197 254 HACR circuit breaker in USA only All fuses Class RK 5 Table 4b GT PG 50YE Series Electrical Data 50YE Unit with Whole House Standard 50YE Unit Dehumidification Compressor Hwe EX Fan Total Min Whole Total Min Pump EE Motor Unit Circuit P Unit Circuit BACH RLA LRA FLA FLA FLA Pump FLA FLA Amps ECM Electrical Data 17 3 19 6 25 21 1 24 8 35 25 2 35 26 7 40 27 6 40 36 9 50 44 9 70 48 9 70 Rated Voltage of 208 230 60 1 Min M ax Voltage of 197 254 HACR circuit breaker in USA only All fuses Class RK 5 20 Residential Packaged Units 60Hz Puron Rev 4 Jan 2012 Electrical Line Voltage A WARNING A WARNING Disconnect electrical power source to prevent injury or death from electrical shock A CAUTION A CAUTION Use only copper conductors for field installed electrical wiring Unit terminals are not designed to accept other types of conductors Electrical Line Voltage All field installed wiring including electrical ground must comply with the National Electrical Code as well as all applicable local codes Refer to the unit electrical d
87. otor DXM Board Da CIDOOOO Fuss ZDOOO000 HWG Pump Oo Relay 9 9 9 9 DIP Switches Thermostat CFM Counter Connections 1 flash per 100 CFM 25 Residential Packaged Units 60Hz Puron Rev 4Jan 2012 GT PX 50YD Series ECM Blower Performance D ata Residential Airflow in CFM with wet coil and clean air filter Units Only Cooling Mode Dehumid Mode Heating Mode Stg 1 Stg2 Fan Stg1 Stg2 Fan Stg1 Stg2 Fan 810 950 475 630 740 415 920 1060 415 725 850 425 560 660 425 825 950 425 620 730 370 490 570 370 710 820 370 520 610 300 600 690 300 1120 1400 700 1120 1400 700 1000 1250 630 1000 1250 630 860 1080 540 860 1080 730 900 450 730 900 1460 1730 870 1560 1850 1300 1550 780 1400 1650 1120 1330 670 1200 1430 940 1120 560 1010 1200 1670 2050 1020 1860 2280 1500 1825 920 1650 2050 1280 1580 790 1430 1750 1080 1320 660 1200 1470 1620 2190 1050 1690 2230 1500 1950 980 1600 2100 1400 1830 910 1400 1850 1320 1700 850 1240 1620 LA N e JNJ A jJje INJ A Je IN WIR TRIN AJjer IN Wl sts e JN Jw A TRIN WIT IN juw A TRIN AJjer IN Wl s e e je jejejejejeje jejejlje Factory shipped on Tap Setting 2 During Auxiliary operation residential units only the CFM will run at the higher if the heating delay jumper or AUX settings Airflow is controlled within
88. ovide sufficient room to make water electrical and duct connection s If the unit is located in a confined space such as a closet provisions must be made for return air to freely enter the space by means of a louvered door etc Any access panel screws that would be difficult to remove after the unit is installed should be removed prior to setting the unit Refer to Figure 3 for an illustration of a typical installation Refer to unit specifications catalog for dimensional data Conform to the following guidelines when selecting unit location 1 Provide a hinged access door in concealed spline or plaster ceilings Provide removable ceiling tiles in T bar or lay in ceilings Refer to horizontal unit dimensions for specific series and model in unit specifications catalog Size the access opening to accommodate the service technician during the removal or replacement of the compressor and the removal or installation of the unit itself 2 Provide access to hanger brackets water valves and fittings Provide screwdriver clearance to access panels discharge collars and all electrical connections 3 DO NOT obstructthe space beneath the unit with piping electrical cables and other items that prohibit future removal of components or the unit itself 4 Usea manual portable jack lift to lift and support the weight of the unit during installation and servicing The installation of water source heat pump units and all associated components
89. p assemblies prior to installation P ressures of at least 100 psi 689 kPa should be used when testing Do not exceed the pipe pressure rating Test entire system when all loops are assembled Flushing the Earth Loop Once piping is completed between the unit Flow Controller and the ground loop Figure 12 the loop is ready for final purging and charging A flush cart with atleast a 1 5 hp 1 1 kW pump is required to achieve enough fluid velocity in the loop piping system to purge air and dirt particles An 11 12 Residential Packaged Units 60Hz Puron Rev 4Jan 2012 Ground Loop Heat Pump Applications antifreeze solution is used in most areas to prevent freezing All air and debris must be removed from the earth loop piping before operation Flush the loop with a high volume of water at a minimum velocity of 2 fps 0 6 m s in all piping The steps below must be followed for proper flushing 1 Fill loop with water from a garden hose through the flush cart before using the flush cart pump to insure an even fill 2 Once full the flushing process can begin Do not allow the water level in the flush cart tank to drop below the pump inlet line to avoid air being pumped back out to the earth loop 3 Try to maintain a fluid level in the tank above the return tee so that air cannot be continuously mixed back into the fluid Surges of 50 psi 345 kPa can be used to help purge air pockets by simply shutting off the retu
90. parameters Reduced or no air flow in heating heck for dirty air filter and clean or replace heck fan motor operation and airflow restrictions C e C C Check pump operation or valve operation setting C B C C Di irty Air Coil construction dust etc Too high of external static Check static vs blower table Air temperature out of range in heating ring return air temp within design parameters Overcharged with refrigerant heck superheat subcooling vs typical operating condition table Bad HP Switch heck switch continuity and operation Replace Water pressure too high Bad high pressure water switch Insufficient charge eplace HPWS B Ci Ci Reduce water pressure to below 300 psig R Check for refrigerant leaks Compressor pump down at start up Reduced or no water flow in heating Check charge and start up water flow heck pump operation or water valve operation setting ugged strainer or filter Clean or replace heck water flow adjust to proper flow rate Inadequate antifreeze level heck antifreeze density with hydrometer Improper temperature limit setting 30 F vs 10 F 1 C vs 2 C Water Temperature out of range ring water temp within design parameters Bad thermistor Reduced or no air flow in cooling heck temp and impedance correlation per chart heck for dirty air filter and clean or replace Ci P Ci
91. ped from a reservoir outside of the building when possible or introduced under the water level to prevent fumes Calculate the total volume of fluid in the piping system Then use the percentage by volume shown in Table 2 for the amount of antifreeze needed Antifreeze concentration should be checked from a well mixed sample using a hydrometer to measure specific gravity Low Water Temperature Cutout Setting CXM Control When antifreeze is selected the FP1 jumper JW3 should be clipped to select the low temperature antifreeze 10 F 12 2 C set point and avoid nuisance faults see Low Water Temperature Cutout Selection in this manual Note Low water temperature operation requires extended range equipment Table 1 Approximate Fluid Volume gal per 100 of Pipe Fluid Volume gal liters per 100 30 meters Pipe Pipe Size Volume gal liters 1 4 1 15 3 6 4 23 8 2 5 9 2 34 3 Rubber Hose 1 3 9 14 6 3 4 IPS SDR11 2 8 10 4 1 iPS SDR11 4 5 16 7 1 25 IPS SDR11 8 0 29 8 1 5 IPS SDR11 10 9 40 7 2 IPS SDR11 18 0 67 0 1 25 IPS SCH40 8 3 30 9 1 5 IPS SCH40 10 9 40 7 2 IPS SCH40 17 0 63 4 1 0 3 8 Copper Polyethylene Typical 10 Dia x 3ft tall 254mm x 91 4cm tall Unit Heat Exchanger Flush Cart Tank 10 37 9 Residential Packaged Units 60Hz Puron Rev 4Jan 2012 Ground Loop Heat Pump Appl
92. pen for 30 seconds prior to compressor power up it will be considered a low pressure loss of charge fault The low pressure switch input is bypassed for the initial 60 seconds of a compressor run cycle Low pressure lockout code 3 Water coil low temperature FP 1 The FP 1 thermistor temperature must be below the selected low temperature limit setting for 30 continuous seconds during a compressor run cycle to be recognized as a FP 1 fault The FP1 input is bypassed for the initial 120 seconds of a compressor run cycle FP1 is set at the factory for one try Therefore the control will go into lockout mode once the FP 1 fault has occurred FP1 lockout code 4 Air coil low temperature FP 2 The FP2 thermistor temperature must be below the selected low temperature limit setting for 30 continuous seconds during a compressor run cycle to be recognized as a FP2 fault The FP2 input is bypassed for the initial 120 seconds of a compressor run cycle FP2 is set at the factory for one try Therefore the control will go into lockout mode once the FP2 fault has occurred FP2 lockout code 5 Condensate overflow The condensate overflow sensor must sense overflow level for 30 continuous seconds to be recognized as a CO fault Condensate overflow will be monitored at all times CO lockout code 6 Over under voltage shutdown An over under voltage condition exists when the control voltage is outside the range of 18VAC to 3
93. peration compressdractivates Q System pH Check and adjust water pH if necessary to b Check for cool air delivery at the unit grille within a maintain a level between 6 and 8 5 Proper pH promotes few minutes after the unit has begun to operate longevity of hoses and fittings see Table 3 Note Units have a five minute time delay in the Q System flushing Verify that all air is purged from the control circuit that can be bypassed on the CXM DXM control board as shown below in Figure 27 See controls description for details c Verify that the compressor is on and that the water flow rate is correct by measuring pressure drop through the heat exchanger using the P T plugs and comparing to Tables 9a through 9b d Check the elevation and cleanliness of the condensate lines Dripping may be a sign of a Residential Packaged Units 60Hz Puron Rev 4Jan 2012 blocked line Check that the condensate trap is filled to provide a water seal e Referto Table 10 Check the temperature of both entering and leaving water If temperature is within range proceed with the test If temperature is outside of the operating range check refrigerant pressures and compare to Tables 11 through 12 Verify correct water flow by comparing unit pressure drop across the heat exchanger versus the data in Tables 9a through 9b Heat of rejection HR can be calculated and compared to catalog data capacity pages The formula for HR for systems with water is
94. present Low refrigerant charge Check superheat and subcooling per chart Restricted metering device Check superheat and subcooling per chart Replace Defective reversing valve Perform RV touch test Thermostat improperly located Check location and for air drafts behind stat Unit undersized Recheck loads amp sizing Check sensible clg load and heat pump capacity Scaling in water heat exchanger Perform scaling check and clean if necessary Inlet water too hot or too cold Reduced or no air flow in heating Check load loop sizing loop backfill ground moisture Check for dirty air filter and clean or replace Check fan motor operation and air flow restrictions Too high of external static Check static vs blower table Reduced or no water flow in cooling Check pump operation or valve operation setting Check water flow Adjust to proper flow rate Inlet water too hot Check load loop sizing loop backfill ground moisture Air temperature out of range in heating Bring return air temperature within design parameters Scaling in water heat exchanger Perform scaling check and clean if necessary Unit overcharged Check superheat and subcooling Re weigh in charge Non condensables in system Vacuum system and re weigh in charge Restricted metering device Reduced water flow in heating Check superheat and subcooling per
95. problems RE Check fault LED code Start up on control board No fault shown No See Unit short Unit hor Replace cycles Cycles CXM No See Only Yes Only F See FP2 See See Over Fan unt Ei Fault Condensate Under Fault Voltage N See Only Yes Only Comp Compressor Runs Runs Did unit lockout after a period of operation No See Does Does unit not Operate operate in in Clg cooling Unit is OK See Performance Troubleshooting for further help Residential Packaged Units 60Hz Puron Rev 4 Jan 2012 Functional Troubleshooting Main power problems HP HPWS Fault Code 2 High Pressure LP LOC Fault Code 3 Low Pressure Loss of Charge LT1 Fault Code 4 Water coil low temperature limit LT2 Fault Code 5 Air coil low temperature limit Condensate Fault Code 6 Over Under Voltage Code 7 Auto resetting Unit Performance Sentinel Code 8 No Fault Code Shown Unit Short Cycles Only Fan Runs Possible Cause Green Status LED Off Reduced or no water flow in cooling Solution heck line voltage circuit breaker and disconnect heck for line voltage between L1 and L2 on the contactor heck for 24VAC between R and C on DXM2 heck primary secondary voltage on transformer heck water flow adjust to proper flow rate Water Temperature out of range in cooling ring water temp within design
96. r the specific unit series and model to correlate speed tap to airflow in CFM The dehumidification mode can be enabled in two ways 1 Constant Dehumidification Mode When the dehumidification mode is selected via DIP switch or jumper setting the ECM motor will operate with a multiplier applied to the cooling CFM settings approx 20 25 lower airflow Any time the unit is running in the cooling mode it will operate at the lower airflow to improve latent capacity The DEHUM LED will be illuminated at all times Heating airflow is not affected NOTE Do not select dehumidification mode if cooling setting is tap 1 2 Automatic Humidistat controlled Dehumidification Mode When the dehumidification mode is selected via DIP switch or jumper setting AND a humidistat is connected to terminal DH version Il or HUM version I the cooling airflow will only be reduced when the humidistat senses that additional dehumidification is required The DH or HUM terminal is reverse logic Therefore a humidistat not dehumidistat is required The DEHUM LED will be illuminated only when the humidistat is calling for dehumidification mode Heating airflow is not affected NOTE Do not select dehumidification mode if cooling setting is tap 1 Residential Packaged Units 60Hz Puron Rev 4Jan 2012 ECM Blower Control Table 5 ECM Board Tap Settings Cooling settings GT PX and GT PG Units Heating settings GT PG and GT
97. r to setting the unit Refer to Figures 7 and 8 for typical installation illustrations Refer to unit specifications catalog for dimensional data l Install the unit on a piece of rubber neoprene or other mounting pad material for sound isolation The pad should be at least 3 8 10mm to 1 2 13mm in thickness Extend the pad beyond all four edges of the unit 2 Provide adequate clearance for filter replacement and drain pan cleaning Do not block filter access with piping conduit or other materials Refer to unit specifications for dimensional data 3 Provide access for fan and fan motor maintenance and for servicing the compressor and coils without removing the unit 4 Provide an unobstructed path to the unit within the closet or mechanical room Space should be sufficient to allow removal of the unit if necessary 5 Provide access to water valves and fittings and screwdriver access to the unit side panels discharge collar and all electrical connections Downflow units may be installed directly on the floor The optional internal electric heat is rated for zero clearance to combustible materials The installation of water source heat pump units and all associated components parts and accessories which make up the installation shall be in accordance with the regulations of ALL authorities having jurisdiction and MUST conform to all applicable codes It is the responsibility of the installing contractor to determine and comply
98. re recommendations only State provincial and local codes MUST be followed and installation MUST conform to ALL applicable codes It is the responsibility of the installing contractor to determine and comply with ALL applicable codes and regulations Pre Installation Prior to installation locate and mark all existing underground utilities piping etc Install loops for new construction before sidewalks patios driveways and other construction has begun During construction accurately mark all ground loop piping on the plot plan as an aid in avoiding potential future damage to the installation Piping Installation The typical closed loop ground source system is shown in Figure 12 All earth loop piping materials should be limited to polyethylene fusion only for in ground sections of the loop Galvanized or steel fittings should not be used at any time due to their tendency to corrode All plastic to metal threaded fittings should be avoided due to their potential to leak in earth coupled applications A flanged fitting should be substituted P T plugs should be used so that flow can be measured using the pressure drop of the unit heat exchanger Earth loop temperatures can range between 25 and 110 F 4 to 43 C Flow rates between 2 25 and 3 gpm per ton 2 41 to 3 23 I m per kW of cooling capacity is recommended in these applications Test individual horizontal loop circuits before backfilling Test vertical U bends and pond loo
99. riodically to insure indoor air quality The condensate drain can pick up lint and dirt especially with dirty filters Inspect the drain twice a year to avoid the possibility of plugging and eventual overflow Compressor Conduct annual amperage checks to insure that amp draw is no more than 1096 greater than indicated on the serial plate data Fan Motors All units have lubricated fan motors Fan motors should never be lubricated unless obvious dry operation is suspected Periodic maintenance oiling is not recommended as it will result in dirt accumulating in the excess oil and cause eventual motor failure Conduct annual dry operation check and amperage check to insure amp draw is no more than 1096 greater than indicated on serial plate data Air Coil The air coil must be cleaned to obtain maximum performance Check once a year under normal operating conditions and if dirty brush or vacuum clean Care must be taken not to damage the aluminum fins while cleaning CAUTION Fin edges are sharp Cabinet Do not allow water to stay in contact with the cabinet for long periods of time to prevent corrosion of the cabinet sheet metal Generally vertical cabinets are set up from the floor a few inches 7 8 cm to prevent water from entering the cabinet The cabinet can be cleaned using a mild detergent Refrigerant System To maintain sealed circuit integrity do not install service gauges unless unit operation appears abnormal Ref
100. rizontal Installation Figure 3 Typical Horizontal Unit Installation a 3 8 10mm threaded rods by others A ct Return Air Optional Low Pressure Drop Water Control Valve can be internally mounted Thermostat on some models Wiring Power Wiring Stainless steel braid hose with integral J swivel Supply Air Optional Balancing Valve Building X 44 Loop Insulated supply duct with bcne Duct d onnector at least one 90 deg elbow Unit Powe Water Out to reduce air noise Disconnect Water In by others Unit Hanger Ball Valve with optional integral P T plug u Air Coil To obtain maximum performance the air coil should be cleaned before start up A 1096 solution of dishwasher detergent and water is recommended for both sides of the coil A thorough water rinse should follow UV based anti bacterial Systems may damage e coated air coils Residential Packaged Units 60Hz Puron Rev 4 Jan 2012 Overview Horizontal units can be field converted between side straight and back end discharge using the instructions below Note It is not possible to field convert return air between left or right return models due to the necessity of refrigeration copper piping changes Preparation It is best to field convert the unit on the ground before hanging If the unit is already hung it should be taken down for the field conversion Side to Back Discharge Conversion
101. rn valve going into the flush cart reservoir This dead heads the pump to 50 psi 345 kPa To purge dead head the pump until maximum pumping pressure is reached Open the return valve and a pressure surge will be sent through the loop to help purge air pockets from the piping system 4 Notice the drop in fluid level in the flush cart tank when the return valve is shut off If air is adequately purged from the system the level will drop only 1 2 inches 2 5 5 cm in a 10 25 cm diameter PVC flush tank about a half gallon 2 3 liters since liquids are incompressible If the level drops more than this flushing should continue since air is still being compressed in the loop fluid Perform the dead head procedure a number of times Note This fluid level drop is your only indication of air in the loop 5 Consult Whole House Dehumidification AOM for flushing instructions for units equipped with Whole House Dehumidification Whole House Dehumidification option Antifreeze may be added before during or after the flushing procedure However depending upon which time is chosen antifreeze could be wasted when emptying the flush cart tank See antifreeze section for more details Loop static pressure will fluctuate with the seasons Pressures will be higher in the winter months than during the cooling season This fluctuation is normal and should be considered when charging the system initially Run the unit in either heating or c
102. set for stage 2 the alarm relay will NOT cycle during test mode On Stage 1 Off Stage 2 DIP switch 3 Not Used DIP switch 4 DDC Output at EH2 provides selection for CXM Controls DDC operation If set to DDC Output at EH2 the EH2 terminal will continuously output the last fault code of the controller If set to EH2 normal EH2 will operate as standard electric heat output On EH2 Normal Off DDC Output at EH2 NOTE Some CXM controls only have a 2 position DIP switch package If this is the case this option can be selected by clipping the jumper which is in position 4 of SW1 Jumper not clipped EH2 Normal J umper clipped DDC Output at EH2 DIP switch 5 Factory Setting Normal position is On Do not change selection unless instructed to do so by the factory Table 6a CXM LED And Alarm Relay Operations Description of Operation Normal Mode On Normal Mode with UPS Warning On Cycle closed 5 sec Open 25 sec CXM is non functional Open Fault Retry Slow Flash Open ast Flash Closed Open Closed after 15 minutes Alarm Relay Over Under Voltage Shutdown Slow Flash Test Mode No fault in memory Flashing Code 1 Test Mode HP Fault in memory Flashing Code 2 ing Code 1 ing Code 2 ing Code 3 Test Mode LP Fault in memory Flashing Code 3 Test Mode FP1 Fault in memory Flashing Code 4 ing Code 4 Test Mode FP2 Fault in memory Flashing Code 5 T
103. should be used 2 stage heat 2 stage cool or 3 stage heat 2 stage cool HFC 410A packaged units built after May 2009 have ECM controller version Ill P N 17B0034N01 This controller includes logic and a relay to control the HWG functions Note Power must be off to the unit for at least three seconds before the ECM motor will recognize a speed change The motor will recognize a change in the CFM Adjust or dehumidification mode settings while the unit is powered There are four different airflow settings from lowest airflow rate speed tap 1 to the highest airflow rate speed tap 4 The charts below indicate settings for both versions of the ECM interface board followed by detailed information for each setting Cooling Settings The cooling setting determines the cooling normal CFM for all units with ECM motor Cooling normal setting is used when the unit is not in dehumidification mode Tap 1 is the lowest CFM setting while tap 4 is the highest CFM setting To avoid air coil freeze up tap 1 may not be used if the dehumidification mode is selected Consult submittal data or specifications catalog for the specific unit series and model to correlate speed tap setting to airflow in CFM Heating Settings The heating setting determines the heating CFM for GT PX 50YD and GT PG 50YE units Tap 1 is the lowest CFM setting while tap 4 is the highest CFM setting Consult submittal data or specifications catalog for the specific u
104. t 125 F 52 C OR LT2 lt 40 F 4 C No compressor operation for poor water flow or air flow Only Fan Operates Compressor overload heck and replace if necessary Control board Dirty air filter power and check operation and clean air filter Unit in test mode power or wait 20 minutes for auto exit Unit selection nit may be oversized for space Check sizing for actual load of space Compressor overload Thermostat position heck and replace if necessary nsure thermostat set for heating or cooling operation Unit locked out heck for lockout codes Reset power Compressor Overload heck compressor overload Replace if necessary Thermostat wiring Check thermostat wiring at heat pump Jumper Y1 and R for compressor operation in test mode 45 46 Residential Packaged Units 60Hz Puron Rev 4Jan 2012 Functional Tro ubleshooting Only Compressor Runs Unit Doesn t Operate in Cooling Performance Troubleshooting Thermostat wiring Check G wiring at heat pump Jumper G and R for fan operation Fan motor relay Jumper G and R for fan operation Check for voltage at blower relay Check fan power enable relay operation if present Fan motor Check for line voltage at motor Check capacitor Thermostat wiring Reversing valve Check thermostat wiring at heat pump Jumper Y1 and R for compressor operati
105. te drain line Do not through return air grilles install units with a common trap and or vent 2 Mount the unit on a Tranquility Unit Isolation Pad to minimize vibration transmission to the building structure For more information on Tranquility Unit Isolation Pads AES Figure 10a Vertical Condensate Drain contact your distributor 3 4 FPT Figure 9 Vertical Sound Attenuation Vent 3 4 PVC 1 4 per foot 21mm per m slope to drain Water Alternate Connections Condensate A Location Isolation Pad Some units include a painted drain connection Using a 7 threaded pipe or similar device to clear any excess paint Insulated Sound Baffle accumulated inside this fitting may ease final drain line installation Open Both Ends and Bottom Return Air Louver or Grille Figure 10b Vertical Internal Condensate Trap m Drain pan connection Dashed lines trace routing of internally trapped condensate drain tubing 3 Above photo shows bottom half of typical vertical packaged unit Residential Packaged Units 60Hz Puron Rev 4Jan 2012 External Flow Controller Mounting The Flow Controller can be mounted beside the unit as shown in Figure 12 Review the Flow Controller installation manual for more details Water Connections Residential Distributor Models Residential models utilize swivel piping fittings for water connections that
106. tting The field installed high pressure switch shall have a cut out pressure of 300 psig and a cut in pressure of 250 psig This pressure switch can be ordered with a 1 4 internal flare connection as part number 39B0005N02 A CAUTION A CAUTION Refrigerant pressure activated water regulating valves should never be used with this equipment Thermostat Installation The thermostat should be located on an interior wall in a larger room away from supply duct drafts DO NOT locate the thermostat in areas subject to sunlight drafts or on external walls The wire access hole behind the thermostat may in certain cases need to be sealed to prevent erroneous temperature measurement Position the thermostat back plate against the wall so that it appears level and so the thermostat wires protrude through the middle of the back plate Mark the position of the back plate mounting holes and drill holes with a 3 16 5mm bit Install supplied anchors and secure plate to the wall Thermostat wire must be 18 AWG wire Wire the appropriate thermostat as shown in Figures 24 and 25 to the low voltage terminal strip on the CXM units with PSC motor or ECM control board units with ECM motor Practically any heat pump thermostat will work with these units provided it has the correct number of heating and cooling stages NOTICE Units with Whole House Dehumidification whole house dehumidification option require a separate humidistat or thermostat part
107. uces scaling potential The temperature set point of the HWG is field selectable to 125 F or 150 F The 150 F set point allows more heat storage from the HWG For example consider the amount of heat that can be generated by the HWG when using the 125 F set point versus the amount of heat that can be generated by the HWG when using the 150 F set point In a typical 50 gallon two element electric water heater the lower element should be turned down to 100 F or the lowest setting to get the most from the HWG The tank will eventually stratify so that the lower 8096 of the tank or 40 gallons becomes 100 F controlled by the lower element The upper 2096 ofthe tank or 10 gallons will be maintained at 125 F controlled by the upper element Using a 125 F set point the HWG can heat the lower 40 gallons of water from 100 F to 125 F providing up to 8 330 btu s of heat Using the 150 F set point the HWG can heat the same 40 gallons of water from 100 F to 150 F and the remaining 10 gallons of water from 125 F to 150 F providing a total of up to 18 743 btu s of heat or more than twice as much heat as when using the 125 F set point This example ignored standby losses of the tank When those losses are considered the additional savings are even greater A WARNING A WARNING A 150 F SETPOINT MAY LEAD TO SCALDING OR BURNS THE 150 F SET POINT MUST ONLY BE USED ON SYSTEMS THAT EMPLOY AN APPROVED ANTI SCALD VALVE
108. ull Load Cooling without HWG active Full Load Heating without HWG active Entering Water Temp F Water Flow GPM ton Suction Pressure PSIG Discharge Pressure PSIG Superheat Subcooling Water Temp Rise oF Air Temp Drop F DB Suction Pressure PSIG Discharge Pressure PSIG Superheat Subcooling Water Temp Drop F Air Temp Rise F DB 30 1 5 2 25 114 124 113 123 113 123 170 190 150 170 131 151 27 32 27 32 27 32 10 15 9 14 7 12 17 2 19 2 12 7 14 7 8 2 10 2 17 23 17 23 17 23 69 79 72 82 75 85 286 306 289 309 292 312 5 10 5 10 6 11 5 10 6 11 6 11 4 5 6 5 3 9 5 9 3 2 5 2 16 22 17 23 18 24 130 140 129 139 129 139 226 246 208 228 190 210 10 15 10 15 10 15 6 11 5 10 4 9 17 8 19 8 13 3 15 3 8 8 10 8 20 26 20 26 20 26 100 110 105 115 110 120 315 335 322 342 330 350 7 12 8 13 10 15 6 11 6 11 9 11 7 9 5 7 22 28 23 29 24 30 132 142 131 141 131 141 290 310 273 293 255 275 6 11 6 11 6 11 6 11 5 10 4 9 17 3 19 3 12 8 14 8 8 3 10 3 19 25 19 25 19 25 131 141 138 148 145 155 347 367 358 378 369 389 11 16 13 18 16 21 13 4 15 4 10 12 6 9 8 9 29 35 30 36 31 37 136 146 135 145 135 145 370 390 350 370 330 350 6 11 6 11 6 11 6 11 5 10 4 9 16 18 11 8 13 8 7 6 9 6 17 23 17 23 17 23 143 153 142 152 141 151 4
109. ury or death The heat pump water piping pump and hot water tank should be located where the ambient temperature does not fall below 50 F 10 C Keep water piping lengths at a minimum DO NOT use a one way length greater than 50 ft one way 15 m See Table 7 for recommended piping sizes and maximum lengths All installations must be in accordance with local codes The installer is responsible for knowing the local requirements and for performing the installation accordingly DO NOT connect the pump wiring until Initial Start Up section below Powering the pump before all installation steps are completed may damage the pump Water Tank Preparation 1 Turn off power or fuel supply to the hot water tank 2 Connect a hose to the drain valve on the water tank 3 Shutoffthe cold water supply to the water tank 4 Openthe drain valve and open the pressure relief valve or a hot water faucet to drain tank 5 When using an existing tank it should be flushed with cold water after it is drained until the water leaving the drain hose is clear and free of sediment 6 Close all valves and remove the drain hose 7 Install HWG water piping HWG Water Piping l Using atleast 5 8 16mm O D copper route and install the water piping and valves as shown in Figures 14 or 15 Install an approved anti scald valve if the 150 F HWG setpoint is or will be selected An appropriate method must be employed to purge air from the HWG pipi
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