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Carrier 50RHC Heat Pump User Manual

1. H 1670 1630 1600 1570 1540 1510 1440 1380 1290 1130 1610 1450 1420 1390 1860 1820 1270 1210 1190 1160 1120 1080 1030 Dio 2000 1940 1880 1830 1780 1690 1610 1540 1310 1190 1740 1700 1670 1630 1570 1520 1410 1310 1170 1470 1410 sem of re sm eon rop a L D een zo 2 c arm Eon 98 SSmo ES 70 1640 2260 660 1550 1950 1570 1430 H 2460 2430 2390 2340 2310 2280 2230 2180 1990 1860 1740 1740 1640 50RHS RVS RDS RATED FAN UNITS AIRFLOW SPEED 015 Low 018 Low 024 800 Med 030 Low Hi Static 030 036 Low Hi Static 036 042 Med 048 Low 060 Med 070 Low LEGEND Not Recommended NOTES 2270 1570 1 Includes allowance for wet coil and clean factory installed filter 2 Units factory shipped on medium speed 015 on Low Other speeds require field selection 3 All airflow is rated on 208 v operating with wet coil and clean air filter 4 All units ARI ISO ASHRAE 13256 1 rated on high 015 rated on medium 29 Table 13 50RHS RVS Blower Performance with HWR 50RHS RVS WITH REHEAT ESP LOSS COIL FACE 015 018 in wg 024 030 in wg 036 in wg 042 048 in wg 060 in wg 070 in wg 200 0 026 250 0 084 300 0 044 350
2. GROUND LOOP APPLICATIONS Not Applicable to SORHC RVC Units Temperatures between 25 to 110 F and a cooling capacity of 2 25 to 3 gpm of flow per ton is rec ommended In addition to complying with any applicable codes consider the following for system piping Limit piping materials to only polyethylene fusion in the buried sections of the loop Do not use galvanized or steel fittings at any time due to corrosion Avoid all plastic to metal threaded fittings due to the potential to leak Use a flange fitted substitute Do not overtighten connections Route piping to avoid service access areas to unit Use pressure temperature P T plugs to measure flow of pressure drop the published limits Water Flow Pressure Control Regulator Tank Valve E Water Out Water In From Pump Valve Strainer Field Installed Accessory 16 to 20 mesh recommended for filter sediment Pressure Temperature Plugs Fig 18 Typical Ground Water Piping Installation Table 4 Water Quality Guidelines CONDITION ACCEPTABLE LEVEL pH 7 to 9 range for copper Cupronickel may be used in the 5 to 9 range Total Hardness Calcium and magnesium carbonate should not exceed 20 grains per gallon 350 ppm Iron Oxides Less than 1 ppm Iron Bacteria No level allowable Corrosion Max Allowable Level Coaxial Metal Ammonia Ammonium Hydroxide 0 5 ppm Cu Ammonium Chloride Ammonium Nitrate 0 5 ppm Cu Ammonium Sulfa
3. CONDENSATE LIQUID CO LINE LEGEND AIR COIL WATER i FREEZE COAX hae Heat Exchanger PROTECTION Refrigerant Liquid Line Flow COIL PROTECTION TROUBLESHOOTING Fig 31 and 32 and Table 30 When troubleshooting problems with a WSHP consider the following Thermistor A thermistor may be required for single phase units where starting the unit is a problem due to low voltage See Fig 31 for thermistor nominal resistance 90 0 80 0 70 0 60 0 50 0 40 0 Resistance kOhm 0 0 200 400 60 0 800 100 0 1200 140 0 Temperature degF Fig 31 Thermistor Nominal Resistance Control Sensors The control system employs 2 nom inal 10 000 ohm thermistors FP1 and FP2 that are used for freeze protection Be sure 1 is located in the discharge fluid and FP2 is located in the air discharge See Fig 32 SUCTION COMPRESSOR DISCHARGE WATER IN WATER OUT Fig 32 FP1 and FP2 Thermistor Location FAULT Main Power Problems HP Fault Code 2 High Pressure LP LOC Fault Code 3 Low Pressure Loss of Charge FP1 Fault Code 4 Water Freeze Protection FP2 Fault Code 5 Air Coil Freeze Protection Condensate Fault Code 6 Over Under Voltage Code 7 Auto Resetting Performance Monitor Code 8 FP1 and FP2 Thermistors Code 9 No Fault Code Shown Unit Short Cycles Only
4. L see nove H I rEg 9501 LEGEND AL Alarm Relay Contacts Field Line Voltage Wirin BM Blower Motor LE C Wire Nut BMC Blower Motor Capacitor commo TOW volage iting Relay Contacts N C BR Blower Relay Printed Circuit Trace y Ms CB Circuit Breaker c i iri N O Cc Compressor Optional Wiring Relay Contacts N O Sensor Condensate Overflow x Relay Contactor Coil lt Low Pressure Switch Compressor FP1 Sensor Water Coil Freeze Protection 24 CondensaieP High Pressure Switch FP2 Sensor Air Coil Freeze Protection High Pressure Switch O A o Solenoid Coil p p HPWS High Pressure Water Switch o o Circuit Breaker JW1 Clippable Field Selection Jumper 0 50 Temperature Switch LOC Loss of Charge Pressure Switch LON Local Operating Network Thermistor MV Motorized Valve ERE G NEC National Electrical Code round P1 Field Wiring Terminal Block PB Power Block RVS Reversing Valve Solenoid TRANS Transformer TXV Thermostatic Expansion Valve Optional wiring NOTES 1 Compressor and blower motor thermally protected internally 2 All wiring to the unit must comply with NEC and local codes 3 Transformer is wired to 460 v BLK RED lead for 460 3 60 units 575 v GRY lead for 575 3 60 units or 380 v VIO lead for 380 3 50
5. 2 Service Access Optional 2 Service Access RETURN CONNECTION Using Air Coil Opening ELECTRICAL KNOCKOUTS in OVERALL CONNECTIONS un DISCHARGE CONNECTION RETURN CONNECTION CABINET G H 1 Duct Flange Installed 0 10 in Using Return Air Opening tht 1 conduit 1 2 conduit 3 4 conduit F B Power ihe odo B EHE Supply 224 431 113 24 54 06 y T 5 5 8 2 56 8 109 5 287 6 1 13 7 1 5 2 14 0 20 8 7 24 43 1 173 24 49 06 75 10 2 50 56 104 93 50 15 6 8 109 5 439 6 1 124 1 4 19 1 25 9 12 7 142 264 286 127 38 4 53 2 193 24 54 o 3 E 9 7 12 2 50 68 10 4 9 3 0 21 23 1 173 2 8 135 1 490 61 137 1 4 24 6 31 0 12 7 17 3 264 23 6 127 53 587 439 5 4 532 193 24 54 o 3 1 9 7 12 2 29 38 13 5 13 19 231 17 8 8 1351 490 6 1 137 1 4 14 24 6 31 0 74 97 343 33 48 587 43 9 4 7 8 6 4 006 012 w w 015 024 a ayaa mor 2 6 2 1 9 6 3 4 2 62 2 193 24 54 0 1 9 12 2 29 38 135 13 1 9 1 6 8 158 0 490 61 137 1 1 4 31 0 74 97 343 33 3 4 4 25 71 2 213 24 54 0 1 1 7 14 2 5 8 5 0 13 6 13 3 8 64 5 180 8 541 6 1 13 7 1 9 7 36 1 14 7 12 7 345 338 1 1 Condensate is 3 in copper 2 Horizontal unit shipped with filter bracket only This bracket should be removed for return duct connection
6. af SIC iss rar ER Sno ma A M TRANS BB EZB 4 RV B RV on 0 2 9 LII 5 Denumio Normat Functions BR 2 0 He ean ena Qucm OILERLESS 50 lor USED RED zi EN Bi 40 F 50 F Nor Us PACK eee eae BRI LEGEND AL Alarm Relay Contacts MV Motorized Valve BM Blower Motor NEC National Electrical Code x Relay Contactor Coil BMC Blower Motor Capacitor P1 Field Wiring Terminal Block BR Blower Relay RVS Reversing Valve Solenoid Condensate CB Circuit Breaker TRANS Transformer cc Compressor Contactor TXV Thermostatic Expansion Valve o Solenoid Coil co Sensor Condensate Overflow Fi i iri Field Line Voltage Wirin COMPR Compressor Thermistor FP1 Sensor Water Coil Freeze Protection Low Voltage Wiring 2 Sensor Air Coil Freeze Protection Printed Circuit Trace HP High Pressure Switch Wire Nut JW1 Jumper Alarm cl LOC Loss of Charge Pressure Switch Optional wiring NOTES 6 24 v alarm signal shown For dry alarm contact cut AL2 dry 1 Compressor and blower motor thermally protected internally jumper and dry contact will be available between AL1 and 2 All wiring to the unit must comply with NEC and local codes AL2 3 Transformer is wired to 208 v RED lead for 208 3 60 For 230 3 60 7 Transformer secondary ground via contr
7. 5 208 280 1 197 254 16 5 950 190 184 226 35 08 192 233 35 208 230 3 197 254 10 3 770 190 122 147 25 130 156 25 FAN TOTAL VOLTAGE Har a MOTOR UNIT M2 D 41456 54 300 10 61 74 15 or 68 84 15 NA 269 45 Bas 196 30 108 15 N A 357 60 060 261 40 4603 414 506 67 495 180 85 102 15 96 112 15 NA 208 230 1 197 254 28 8 1690 430 331 404 60 1 07 348 420 70 ond 276 40 4603 414 506 90 620 250 115 137 20 126 148 20 5753 518 683 66 490 220 88 105 15 NA NA NA NA LEGEND FLA Full Load Amps LRA Locked Rotor Amps HACR Heating Air Conditioning and Refrigeration Rated Load Amps HWR Hot Water Reheat PRE START UP 7 Isolation valves are open System Checkout When the installation is complete 8 Water control valves or loop pumps are wired follow the system checkout procedure outlined below before 9 Condensate line is open and correctly pitched starting up the system Be sure 10 Transformer switched to lower voltage tap if necessary 1 Voltage 15 within the utilization range specifications ofthe 11 Blower rotates freely shipping support is removed unit compressor and fan motor and voltage is balanced 12 Blower speed is on correct setting for 3 phase units i s 13 Ai
8. 38 Compressor 39 Fan 1 5 39 Condensate Drain Cleaning 39 Air Coil Cleaning 39 Condenser Cleaning 39 Checking System Charge 39 Refrigerant Charging 40 Air Coil Fan Motor Removal 40 TROUBLESHOOTING 40 42 THEMMIStOR oscar UR REA QE 40 Control Sensors 40 50RHC RVC RHR RHS RVR RVS RDS START UP 5 CL 1 CL2 SAFETY CONSIDERATIONS Installation and servicing of air conditioning equipment can be hazardous due to system pressure and electrical compo nents Only trained and qualified service personnel should install repair or service air conditioning equipment Untrained personnel can perform basic maintenance func tions of cleaning coils and filters and replacing filters All other operations should be performed by trained service personnel When working on air conditioning equipment observe precau tions in the literature tags and labels attached to the unit and other safety precautions that may apply Improper installation adjustment alteration service mainte nance or use can cause explosion fire electrical shock or other conditions which may cause personal injury or property dam age Consult a qualified installer se
9. o BONA Compressor Conduct annual amperage checks to in sure that amp draw 15 no more than 10 greater than indicated on the serial plate data Fan Motors units have lubricated fan motors Fan motors should never be lubricated unless obvious dry opera tion 15 suspected Periodic maintenance oiling is NOT recom mended as it will result in dirt accumulating in the excess oil and cause eventual motor failure Conduct annual dry opera tion check and amperage check to ensure amp draw 15 no more than 10 greater than indicated on serial plate data Condensate Drain Cleaning Clean the drain line and unit drain pan at the start of each cooling season Check flow by pouring water into drain Be sure trap is filled to main tain an air seal Air Coil Cleaning Remove dirt and debris from evap orator coil as required by condition of the coil A 1096 solution of dishwasher detergent and water is recommended for cleaning both sides of the coil followed by a thorough water rinse Clean coil with a stiff brush vacuum cleaner or com pressed air Use a fin comb of the correct tooth spacing when straightening mashed or bent coil fins Condenser Cleaning Water cooled condensers may require cleaning of scale water deposits due to improperly maintained closed loop water systems Sludge build up may need to be cleaned in an open water tower system due to induced contaminants Local water conditions may cause excessive f
10. Blower Motor moe Voltage Wiring C Wire Nut BMC Blower Motor Capacitor Field Low Voltage Wiring BR Blower Relay i T o M o Relay Contacts Printed Circuit Trace CB Circuit Breaker a Compressor Contactor Optional Wiring oko Relay Contacts CO Sensor Condensate Overflow Relay Contactor Coil Low Pressure Switch COMPR Compressor FP1 Sensor Water Coil Freeze Protection STS High Pressure Switch FP2 Sensor Air Coil Freeze Protection m Condensate Pan HP High Pressure Switch Splice Cap HPWS High Pressure Water Switch Solenoid Coil xO Circuit Breaker JW1 Clippable Field Selection Jumper og LOC Loss of Charge Pressure Switch Temperature Switch MV Motorized Valve Thermistor NEC National Electrical Code 1 Field Wiring Terminal Block Ground RVS Reversing Valve Solenoid TRANS Transformer TXV Thermostatic Expansion Valve Optional wiring NOTES 1 Compressor and blower motor thermally protected internally 2 All wiring to the unit must comply with NEC and local codes 3 Transformer is wired to 460 v BLK RED lead for 460 3 60 units 575 v GRY lead for 575 3 60 units or 380 v VIO lead for 380 3 50 units For 420 3 50 operation switch VIO and BRN leads at L1 and insulate VIO lead Transformer is energy limiting or may have circuit breaker 4 FP1 thermistor provides freeze p
11. 0 80 0 90 1 0 1 10 1 20 1 30 HI 310 300 290 280 270 250 230 210 180 006 220 150 MED 260 250 240 230 210 200 190 150 LO 210 200 190 180 160 150 HI 410 400 380 360 350 330 320 300 280 009 325 225 MED 390 370 360 340 320 310 290 280 260 LO 340 330 322 310 300 280 260 250 220 HI 470 460 450 440 430 420 400 390 380 320 012 400 300 MED 420 410 400 390 380 370 360 350 340 LO 360 360 350 340 320 320 310 300 290 HI 760 740 720 710 700 680 650 600 550 460 018 450 MED 700 690 680 670 660 650 630 620 600 560 520 430 LO 620 610 600 590 580 570 560 540 520 490 460 018 HI 790 780 770 760 750 730 710 690 650 530 430 High Static 450 MED 750 740 720 710 700 690 670 670 660 650 630 600 490 390 g LO 670 660 640 630 620 610 600 590 580 580 570 530 420 HI 1000 970 930 870 770 690 024 800 MED 1010 1000 990 980 960 940 920 900 880 860 830 770 700 600 LO 820 810 800 790 780 770 760 750 730 720 700 650 600 024 HI 1030 950 840 700 High Static 800 MED 1040 1010 970 890 750 620 g LO 1030 1010 980 930 900 870 790 710 HI 1160 1130 1100 1070 1030 950 840 030 750 MED 1250 1230 1200 1180 1150 1120 1090 1070 1040 1010 970 890 750 LO 1120 1100 1070 1050 1030 1010 980 960 930 900 870 790 710 030 1160 1040 920 800 750 High Stat
12. Location Water Connections NOTE Unit does not need to be sloped toward drain Fig 17 Vertical Condensate Connection 16 VENTING Install a vent in the condensate line of any application that may allow dirt or air to collect in the line Con sider the following Always install a vent where an application requires a long horizontal run Always install a vent where large units are working against higher external static pressure and to allow proper drainage for multiple units connected to the same condensate main Besure to support the line where anticipated sagging from the condensate or when double trapping may occur fcondensate pump is present on unit be sure drain con nections have a check valve to prevent back flow of con densate into other units Step 7 Piping Connections Depending on the application there are 3 types of WSHP piping systems to choose from water loop ground water and ground loop Refer to Piping Section of Carrier System Design Manual for addi tional information WSHP units use low temperature soldered female pipe thread fittings for water connections to prevent annealing and out of round leak problems which are typically associated with high temperature brazed connections Refer to Tables 1 3 for connection sizes When making piping connections consider the following Usea backup wrench when making screw connections to unit to prevent inter
13. Number of Rows Filter Standard 1 in Throwaway Weight Ib Operating Packaged HORIZONTAL Air Coil Dimensions H x W in Total Face Area ft2 Tube Size in Fin Spacing Number of Rows Filter Standard 1 in Throwaway Weight Ib Operating Packaged LEGEND Fins per Inch Permanent Split Capacitor FPI PSC Size 006 available in 50RHR unit only o 009 viz os 019 oso oas 060 _ Scroll 35 1 o o 3 4 4 46 9 pu En E PPS Eod 4 5 5 5 Poca BR ex 5m 9x7 20 10540 M 11x10 ve I 9 9 9h 1 t1 d 28x25 4 9 3 8 10 4 28 30 323 338 20 35 4 9 9 8 10 1 12x20 1 25x20 323 338 NOTES 1 All units have spring compressor mountings TXV thermostatic expansion valve expansion devices and and 3 in electrical knockouts 2 Size 048 available as high static unit Table 3 Physical Data Aquazone 50RHS RVS RDS015 070 Units UNIT 50RHS RVS RDS COMPRESSOR 1 each FACTORY CHARGE R 22 oz PSC FAN MOTOR AND BLOWER Fan Motor Type Speeds Fan Motor Hp Blower Wheel Size D x W in WATER CONNECTION SIZE FPT in HWG CONNECTION SIZE FPT in VERTICAL DOWNFLOW Air Coil Dimensions H x W in Total Face Area 2 Tube Size in Fin Spacing FPI Number of Rows Filter Standard 1 in Throwaway Weight I
14. Table 30 Troubleshooting cont HEATING COOLING POSSIBLE CAUSE SOLUTION Check G wiring at heat pump Jumper G and R for fan operation X X Fan motor relay Jumper G and R for fan operation Check for line voltage across BR contacts Check fan power enable relay operation if present Check for line voltage at motor Check capacitor X X Thermostat wiring Check Y and W wiring at heat pump Jumper Y and R for compressor operation in test mode X Reversing valve Set for cooling demand and check 24 VAC on RV coil and at control If RV is stuck run high pressure up by reducing water flow and while operating engage and disengage RV coil voltage to push valve x Thermostat setup Check for O RV setup not B X Thermostat wiring Check wiring at heat pump Check RV to ensure the valve is chang ing over from heating and cooling modes A click should be heard when the RV changes modes Dirty filter Replace or clean X Reduced or no airflow in Check for dirty air filter and clean or replace Check fan motor operation and airflow restrictions External static too high Check blower Tables 8 13 X Reduced or no airflow in Check for dirty air filter and clean or replace Check fan motor operation and airflow restrictions External static too high Check blower Tables 8 13 X X Leaky ductwork Check supply and return air temperatures at the unit and at distant duct registers if significantly different duct leaks are present
15. 620 600 670 660 660 650 640 630 620 600 580 550 520 Hi 870 860 840 830 820 800 780 750 730 690 660 610 710 690 670 640 620 600 670 660 660 650 640 630 620 600 580 550 520 1010 980 950 920 880 840 720 950 880 860 820 790 760 730 Low 880 870 860 840 830 810 soo 770 730 700 60 Hi __ 1240 1230 1200 1180 1160 1120 1090 1050 1000 970 930 850 650 1030110001 970 950 910 870 1040 1020 1000 980 960 930 910 870 840 820 790 1220 1200 1150 1110 1070 1020 940 850 690 1130 1100 1070 1040 990 950 1050 1020 990 960 930 900 Hi __ 1390 1360 1320 1280 1250 1220 1200 1150 1110 1070 1020 940 850 690 1130111001 1070110401 990 950 1170 1050 1020 990 960 930 900 HS Hi 1790 1760 1730 1700 1660 1630 1590 1550 1510 1470 1440 1370 1270 1120 HS Med 1510 1490 1470 1450 1420 1400 1380 1350 1320 1300 1270 1180 1070 HS Low 1110 1100 1090 1080 1060 1050 1040
16. D Control Accessory Relay Configurations The following accessory relay settings are applicable for both D controls only CYCLE WITH FAN In this configuration the relay will be ON any time the Fan Enable relay is on CYCLE WITH COMPRESSOR In this configuration the relay will be ON any time the Compressor relay is on DIGITAL NIGHT SET BACK NSB In this configura tion the relay will be ON if the NSB input is connected to ground C NOTE If there are no relays configured for digital NSB then the NSB and override OVR inputs are automatically config ured for mechanical operation MECHANICAL NIGHT SET BACK When NSB input is connected to ground C all thermostat inputs are ignored A thermostat set back heating call will then be connected to the OVR input If OVR input becomes active then the D control will enter Night Low Limit NLL staged heating mode The NLL staged heating mode will then provide heating during the NSB period Water Valve Slow Opening If relay is config ured for Water Valve slow opening the relay will start 60 sec onds prior to starting compressor relay Outside Air Damper OAD If relay is configured for OAD the relay will normally be ON any time the Fan Enable relay is energized The relay will not start for 30 minutes following a return to normal mode from NSB when NSB is no longer connected to ground C After 30 min utes the relay will start if the Fan Enable is set to O
17. These applications should use equipment specifically designed for makeup air HWR COMPONENT FUNCTIONS The proportional controller operates on 24 VAC power supply and automatically adjusts the water valve based on the supply air sensor The supply air sensor senses supply air temperature at the blower inlet providing the input signal necessary for the proportional control to drive the motorized valve during the reheat mode of operation The motorized valve is a proportional actuator three way valve combination used to divert the condenser water from the coax to the hydronic reheat coil during the reheat mode of operation The proportional controller sends a signal to the motorized valve based on the supply air temperature reading from the supply air sensor The loop pump circulates condenser water through the hy dronic reheat coil during the reheat mode of operation refer to Fig 28 In this application the loop pump is only energized during the reheat mode of operation The hydronic coil is uti lized during the reheat mode of operation to reheat the air to the set point of the proportional controller Condenser water is di verted by the motorized valve and pumped through the hydron ic coil by the loop pump in proportion to the control set point The amount of reheating is dependent on the set point and how far from the set point the supply air temperature is The factory set point is 70 to 75 F generally considered neutral air
18. Upon receipt of shipment at the jobsite carefully check the shipment against the bill of lading Make sure all units have been received Inspect the car ton or crating of each unit and inspect each unit for damage Ensure the shipping company makes proper notation of any shortages or damage on all copies of the freight bill Concealed damage not discovered during unloading must be reported to the shipping company within 15 days of receipt of shipment NOTE It is the responsibility of the purchaser to file all necessary claims with the shipping company 1 Verify unit is correct model for entering water tempera ture of job 2 Be sure that the location chosen for unit installation pro vides ambient temperatures maintained above freezing Well water applications are especially susceptible to freezing 3 Be sure the installation location is isolated from sleeping areas private offices and other acoustically sensitive spaces NOTE A sound control accessory package may be used to help eliminate sound in sensitive spaces 4 Check local codes to be sure a secondary drain pan is not required under the unit 5 Be sure unit is mounted at a height sufficient to provide an adequate slope of the condensate lines If an appropri ate slope cannot be achieved a field supplied condensate pump may be required 6 Provide sufficient space for duct connection 7 Provide adequate clearance for filter replacement and drain pan cleaning
19. 1180 HI 2230 2220 2200 2160 2120 2090 2060 2040 2010 1990 1960 1880 1790 1660 060 2000 1500 MED 2040 2020 1990 1970 1940 1920 1890 1860 1830 1810 1780 1710 1620 LO 1840 1830 1810 1800 1780 1760 1730 1700 1670 1640 1600 1510 LEGEND Shaded areas are below minimum CFM This data is BLU CONNECT THE BLUE WIRE TO H FOR HIGH SPEED FAN M FOR MEDIUM SPEED FAN L FOR LOW SPEED FAN MEDIUM FACTORY SETTING FAN MOTOR Fig 27 50RHC RVC Blower Speed Selection speed for applications where higher static is required Low speed will deliver approximately 85 of rated airflow at 0 10 in wg An optional High Static blower is available by using the special option code in the model nomenclature Table 8 50RHR RVR Blower Performance provided for troubleshooting information only CFM Cubic Feet Per Minute Size 006 available in 50RHR units only 27 NOTES Units factory shipped on medium speed Other speeds require 1 2 3 4 Only two speed fan H amp M available on 575 v units field selection filter All airflow is rated on 208 v operating with wet coil and clean air All units ARI ISO ASHRAE 13256 1 rated on high fan speed Table 9 50RHC RVC Blower Performance AIRFLOW Cfm NES M pira CM External Static Pressure in wg 0 00 0 05 0 10 0 15 0 20 0 25 0 30 0 35 0 40 0 45 0 50 0 60 0 70
20. 3 Hanger kit is factory installed Isolation grommets are provided 4 Right and left orientation is determined by looking at water connection side NINDS 2 5 2 5 2 5 2 5 042 048 N ooje Ou 8 2 7 Te LEGEND ASP Alternate Service Panel LEFT RETURN BSP Blower Service Panel RIGHT RETURN water _ Water CAP Control Access Panel Connection Connection csp CSP Compressor Service Panel 2 Service 3 Service Front Access Access Left Return Power Suppl 3 4 Knockout Right Return 1 2 3 25 Knockout 1 6 40 6mm 855 25 Low Voltage 1 2 Knockout CAP G Discharge 9 5 Td Back Condensate Discharge SEE A Discharge Front View M N M Unit Hanger Detail BSP zc Moar x Y Z Blower BSP S Blower 8 5 006 024 43 1 24 375 20 375 7 Outlet ni L Outlet 030 036 53 1 24 375 20 375 lt 04
21. Control LED Code and Fault Descriptions LED CODE FAULT DESCRIPTION 1 No fault in memory There has been no fault since the last power down to power up sequence 2 High Pressure Switch HP Open Instantly 3 Low Pressure Switch LP open for 30 continuous seconds before or during a call bypassed for first 60 sec onds 4 Freeze Protection FP1 below Temp limit for 30 Coax FP1 continuous seconds bypassed for first 60 seconds of operation 5 Freeze Protection Air Coil FP2 below Temp limit for 30 FP2 continuous seconds bypassed for first 60 seconds of operation 6 Condensate overflow Sense overflow grounded for 30 continuous seconds 7 Autoreset Over Under Voltage R power supply is lt 19VAC Shutdown or 30VAC 8 PM Warning Performance Monitor Warning has occurred 9 FP1 and FP2 FP1 temperature is higher than FP2 in heating test mode or FP2 temperature is higher than FP1 in cooling test mode Thermistors are swapped LEGEND CO Condensate Overflow LED Light Emitting Diode FP Freeze Protection LP Low Pressure HP High Pressure PM Performance Monitor Aquazone Deluxe D Control LED Indica tors There are 3 LED indicators on the Deluxe D Control STATUS LED Status LED indicates the current status or mode of the Deluxe D control The Status LED light is green TEST LED Test LED will be activated any time the De luxe D control 15 in test mode The Test LED light is ye
22. DROP IN TABLES 22 24 TO DETERMINE FLOW RATE HEAT OF EXTRACTION ABSORPTION OR HEAT OF REJECTION FLOW RATE GPM x TEMP DIFF DEG F x FLUID FACTOR Btu hr SUPERHEAT SUCTION TEMPERATURE SUCTION SATURATION TEMPERATURE DEG F SUBCOOLING DISCHARGE SATURATION TEMPERATURE LIQUID LINE TEMPERATURE DEG F Use 500 for water 485 for antifreeze Copyright 2007 Carrier Corporation Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Book 1 4 Catalog No 04 53500007 01 Printed in U S A Form 50R 5SI Pg CL 2 6 07 Replaces 50R 4SI Tab ls CUTALONGDOTTEDUINE CUT ALONG DOTTED LINE s i S S
23. Do not allow piping conduit etc to block filter access 8 Provide sufficient access to allow maintenance and servicing of the fan and fan motor compressor and coils Removal of the entire unit from the closet should not be necessary 9 Provide an unobstructed path to the unit within the closet or mechanical room Space should be sufficient to allow removal of unit if necessary 10 Provide ready access to water valves and fittings and screwdriver access to unit side panels discharge collar and all electrical connections 11 Where access to side panels is limited pre removal of the control box side mounting screws may be necessary for future servicing STORAGE If the equipment is not needed immediately at the jobsite it should be left in its shipping carton and stored in a clean dry area ofthe building or in a warehouse Units must be stored in an upright position at all times If carton stacking is necessary stack units a maximum of 3 high Do not remove any equipment from its shipping package until it is needed for installation PROTECTION Once the units are properly positioned on the jobsite cover them with either a shipping carton vinyl film or an equivalent protective covering Cap open ends of pipes stored on the jobsite This precaution is especially important in areas where painting plastering or spraying of fireproof mate rial etc is not yet complete Foreign material that accumulates within the uni
24. NOTE Ball valve with integral pressure temperature plug recommended typical for supply and Compressor Tor return piping Access Panel Fig 10 Typical Downflow Installation 50RDS Units Step 3 Unit Location The following guidelines should be considered when choosing a location for WSHP Units are for indoor use only Locate in areas where ambient temperatures are between 40 F and 100 F and relative humidity is no greater than 75 Provide sufficient space for water electrical and duct connections Locate unit in an area that allows easy access and removal of filter and access panels Allow enough space for service personnel to perform maintenance Return air must be able to freely enter the space if unit needs to be installed in a confined area such as a closet NOTE Correct placement of the horizontal unit can play an important part in minimizing sound problems Since duct work is normally applied to these units the unit can be placed so that the principal sound emission 15 outside the oc cupied space in sound critical applications A fire damper may be required by the local code ifa fire wall is penetrated FIELD CONVERSION OF DISCHARGE AIR The dis charge air of the SORHC RHR RHS horizontal units can be converted between side and back discharge in the field The 14 conversion process is the same for right and left return configu rations See Fig 11 and 12 N
25. Type Switch 4 provides selection for heat pump O B thermostats is cooling output B 15 heating out put Select ON for heat pumps with O output Select OFF for heat pumps with B output Dehumidification Fan Mode Switch 5 provides selection of normal or dehumidification fan mode Select OFF for dehu midification mode The fan speed relay will remain OFF dur ing cooling stage 2 Select ON for normal mode The fan speed relay will turn on during cooling stage 2 in normal mode Switch 6 Not used Boilerless Operation Switch 7 provides selection of boiler less operation and works in conjunction with switch 8 In boilerless operation mode only the compressor 15 used for heating when 1 15 above the boilerless changeover tempera ture set by switch 8 below Select ON for normal operation or select OFF for boilerless operation Boilerless Changeover Temperature Switch 8 on S1 pro vides selection of boilerless changeover temperature set point Select OFF for set point of 50 F or select ON for set point of 40 F If switch 8 is set for 50 F then the compressor will be used for heating as long as the FP1 15 above 50 F The compressor will not be used for heating when the FP1 is below 50 F and the compressor will operates in emergency heat mode staging on EHI and 2 to provide heat If a thermal switch is being used instead of the FP1 thermistor only the compressor will be used for heating mode whe
26. avoid nuisance faults 35 Table 25 Approximate Fluid Volume gal per 100 Ft of Pipe PIPE DIAMETER in VOLUME gal Copper 4 1 6 4 9 2 Rubber Hose 3 9 Polyethylene 3 IPS SDR11 2 8 1IPS SDR11 4 5 11 4 IPS SDR11 8 0 1 IPS SDR11 10 9 2 IPS SDR11 18 0 11 4 IPS SCH40 8 3 11 5 IPS SCH40 10 9 2 IPS SCH40 17 0 LEGEND IPS Internal Pipe Size SCH Schedule SDR Standard Dimensional Ratio NOTE Volume of heat exchanger is approximately 1 0 gallon Table 26 Antifreeze Percentages by Volume MINIMUM TEMPERATURE FOR FREEZE PROTECTION F ANTIFREEZE Methanol 100 USP Food Grade Propylene Glycol Ethanol Cooling Tower Boiler Systems These systems typ ically use a common loop temperature maintained at 60 to 90 F Carrier recommends using a closed circuit evaporative cooling tower with a secondary heat exchanger between the tower and the water loop If an open type cooling tower is used continu ously chemical treatment and filtering will be necessary Ground Coupled Closed Loop and Plateframe Heat Exchanger Well Systems 50RHR RVR RHS RVS RDS Only These systems allow water temperatures from 30 to 110 F The external loop field is divid ed up into 2 in polyethylene supply and return lines Each line has valves connected in such a way that upon system start up each line can be isolated for flushing using only the system pumps Locate air separation in the pi
27. board will bring the unit on in 1st Stage Cooling COOLING STAGE 2 A simultaneous call from G Y 1 Y2 and O to the Y 1 Y2 and O W2 ter minals of the Deluxe D control board will bring the unit on in Cooling Stage 2 When the call is satisfied at the thermo stat the unit will continue to run in Cooling Stage 1 until the Cooling Stage 1 call is removed or satisfied shutting down the unit NOTE Not all units have two stage cooling functionality HEATING STAGE 1 A simultaneous call from G and Y 1 to the G and Y1 terminals of the Deluxe D control board will bring the unit on in Heating Stage 1 HEATING STAGE2 A simultaneous call from G Y 1 and Y2 to the G Y1 and Y2 terminals of the Deluxe D control board will bring the unit on in Heating Stage 2 When the call is satisfied at the thermostat the unit will continue to run in Heating Stage 1 until the call is removed or satisfied shutting down the unit NOTE Not all units have two stage heating functionality REHEAT MODE A call from the humidistat dehumid istat to the terminal of the Deluxe D control board will bring the unit on in Reheat Mode if there is no call for cool ing at the thermostat When the humidistat dehumidistat call 15 removed or satisfied the unit will shut down NOTE Cooling always overrides Reheat Mode In the Cool ing mode the unit cools and dehumidifies If the cooling thermostat is satisfied bu
28. coil construction dust etc Xx x J Overcharged with refrigerant Check superheat subcooling vs typical operating condition Table 21 Compressor pump down at Check charge and start up water flow start up Check water flow adjust to proper flow rate Improper freeze protect set Clip JW2 jumper for antifreeze 10 F use ting 30 F vs 10 F X Reduced or no airflow in Check for dirty air filter and clean or replace cooling Bad thermistor Check temperature and impedance correlation X Poor drainage Check for piping slope away from unit Check slope of unit toward outlet Poor venting Check vent location X X Over voltage Check power supply voltage and 24 vac before and during operation Check 24 vac and unit transformer tap for correct power supply voltage X FP1 temperature is higher Swap FP1 and FP2 thermistors than FP2 temperature x x Compressor overload Check and replace if necessary x x Unit in Test Mode Reset power or wait 20 minutes for auto exit x x Thermostat position Ensure thermostat set for heating or cooling operation X Thermostat wiring Check Y and W wiring at heat pump Jumper Y and R for compressor operation in Test mode 41 FAULT Only Compressor Runs Unit Does Not Operate in Cooling Insufficient Capacity Not Cooling or Heating Properly High Head Pressure Low Suction Pressure Low Discharge Air Temperature in Heating High Humidity LEGEND RV Reversing Valve
29. operation to remove dirt and foreign materials from the system GROUND WATER APPLICATIONS Not Applicable to SORHC RVC Units Typical ground water piping 15 shown in Fig 18 In addition to complying with any appli cable codes consider the following for system piping nstall shut off valves for servicing nstall pressure temperature plugs to measure flow and temperature Connect boiler drains and other valves using a con nector to allow acid flushing for the heat exchanger Do not overtighten connections Route piping to avoid service access areas to unit Use PVC 5 80 or copper piping material NOTE PVC 5 40 should not be used due to system high pressure and temperature extremes Water Supply and Quantity Check water supply Water supply should be plentiful and of good quality See Table 4 for water quality guidelines IMPORTANT Failure to comply with the above required water quality and quantity limitations the closed system application design requirements may cause damage to the tube in tube heat exchanger that is not the responsi bility of the manufacturer In all applications the quality of the water circulated through the heat exchanger must fall within the ranges listed in the Water Quality Guidelines table Consult a local water treat ment firm independent testing facility or local water authority for specific recommendations to maintain water quality within
30. ror sor sor Pressure Drop psi Pressure Drop psi 0 8 0 8 0 8 0 7 0 7 7 0 6 006 1 1 1 2 14 1 0 1 0 006 2 1 1 15 2 0 1 9 1 8 17 8 1 8 1 1 1 2 14 1 0 0 9 zi 26 009 17 17 1 6 1 5 14 3 2 2 2 2 3 5 3 2 3 0 2 8 9 2 8 009 8 37 1 5 28 26 2 4 2 3 41 49 012 2 3 6 0 5 6 5 2 4 9 3 0 9 6 9 0 8 3 7 9 1 2 1 18 2 5 2 3 2 1 2 0 012 E S 015 2 6 4 8 4 5 4 1 3 9 6 52 3 5 8 1 7 6 7 0 6 6 23 19 17 1 6 15 gt 019 3 4 3 4 3 1 2 9 27 018 e 38 45 6 6 6 2 5 7 5 4 54 3 0 2 0 1 9 17 1 6 18 024 4 5 42 3 9 3 6 3 4 35 6 0 7 0 6 5 6 0 5 7 024 6 3 8 14 1 8 12 12 0 9 7 030 5 5 2 4 2 3 2 1 2 0 J a 7 5 3 9 3 7 3 4 3 2 Le 030 4 5 14 14 1 0 0 9 4 3 9 036 6 8 2 1 2 0 1 9 1 8 5 6 3 9 0 3 5 3 3 3 0 2 9 6 16 5 3 1 4 1 3 1 2 1 2 6 0 2 9 042 7 9 2 9 27 2 5 2 3 8 4 6 10 5 46 42 3 9 3 7 7 7 5 6 0 2 1 1 9 1 8 1 7 9 0 9 048 9 0 3 9 3 7 34 32 odi 1 2 0 12 0 6 4 5 9 5 5 5 2 t 8 3 6 7 5 2 9 27 25 2 4 8 5 7 060 11 3 5 7 4 9 4 7 0 0 9 15 0 9 4 8 7 8 1 7 7 2 4 042 9 48 Size 006 available in 5ORHR unit only 2 8 0 Table 23 50RHS RVS RDS Coaxial 5 dd Water Pressure Drop 048 9 48 9 8 6 WATER TEMPERATURE 4 4 0 UNIT SUE 4 69 50RHS RVS RDS 060 8 10 4 6 16 1 8 6 0 5 015 8 0 8 0 8 Size 006 available in 50RHC unit only 8 5 3 1 2 TSize 041 available in 50RVC unit only 2 7 6 0 6 018 5 3 2 1 1 i 8 8 6 15 Antifreeze In areas where entering loop temperatures 3 0 0 6 0 6 5 0 5 drop below 40 F or where piping will b
31. terminal H is active Set the switch to ON for auto dehumidification fan mode or to OFF for high fan mode Switch 8 Not used Units with Modulating Hot Water Reheat HWR Option A heat pump equipped with Hot Water Reheat HWR can operate in three modes cooling cooling with reheat and heating The cooling and heating modes are like other Aquazone water source heat pumps The reversing 31 valve O signal is energized in cooling along with the com pressor contactor s and blower relay In the heating mode the reversing valve is deenergized Almost any thermostat will activate the heat pump in heating or cooling modes The Deluxe D microprocessor board which is standard with the HWR option will accept either heat pump Y O thermostats or non heat pump Y W thermostats The reheat mode requires either a separate humidistat dehumidistat or a thermostat that has an integrated dehumidifi cation function for activation The Deluxe D board is config ured to work with either a humidistat or dehumidistat input to terminal H DIP switch settings for the Deluxe D board are shown in Table 16 Upon receiving an H input the Deluxe D board will activate the cooling mode and engage reheat Table 16 Humidistat Dehumidistat Logic and Deluxe D DIP Switch Settings smor sr zaza toe Humidistat OVAC 24 Dehumidistat 0 VAC Table 17 shows the relationship between thermostat input signals and
32. to OFF for stage 2 in which the compres sor will have a 3 second delay before energizing NOTE The alarm relay will not cycle during Test mode if switch is set to OFF stage 2 D Control Jumper Settings See Fig 20 WATER COIL FREEZE PROTECTION FP1 LIMIT SETTING Select jumper 3 JW3 FP1 Low Temp to choose limit of 10 F or 30 F To select 30 F as the limit DO NOT clip the jumper To select 10 F as the limit clip the jumper AIR COIL FREEZE PROTECTION FP2 LIMIT SET TING Select jumper 2 JW2 FP2 Low Temp to choose FP2 limit of 10 F or 30 F To select 30 F as the limit DO NOT clip the jumper To select 10 F as the limit clip the jumper ALARM RELAY SETTING Select jumper 4 JW4 AL2 Dry for connecting alarm relay terminal AL2 to 24 vac R or to remain as a dry contact no connection To connect AL2 30 to R do not clip the jumper To set as dry contact clip the jumper LOW PRESSURE SETTING The D Control can be con figured for Low Pressure Setting LP Select jumper 1 JW1 LP Norm Open for choosing between low pressure input nor mally open or closed To configure for normally closed opera tion do not clip the jumper To configure for normally open op eration clip the jumper D Control DIP Switches The D Control has 2 DIP switch blocks Each DIP switch block has 8 switches and is labeled either S1 or S2 on the circuit board See Fig 20 DIP SWITCH BLOCK 1 S1 This set of sw
33. to be sure the well head is not allowing air to infiltrate the water line Always keep lines airtight Inspect heat exchangers regularly and clean more frequent ly if the unit is located in a dirty environment Keep the heat exchanger full of water at all times Open loop systems should have an inverted P trap placed in the discharge line to keep water in the heat exchanger during off cycles Closed loop systems must have a minimum of 15 psi during the summer and 40 psi during the winter Generally the higher the water flow through the bail the lower the chance for sealing Check P trap frequently for proper operation IMPORTANT To avoid fouled machinery and extensive unit clean up DO NOT operate units without filters in place DO NOT use equipment as a temporary heat source during construction Condensate Drain Pans Check condensate drain pans for algae growth twice a year If algae growth is apparent consult a water treatment specialist for proper chemical treat ment Applying an algaecide every three months will typically eliminate algae problems in most locations Refrigerant System Verify air and water flow rates are at proper levels before servicing To maintain sealed circuit ry integrity do not install service gauges unless unit operation appears abnormal Check to see that unit is within the superheat and subcool ing temperature ranges shown in Table 21 If the unit is not within these ranges reco
34. 0 740 720 690 660 620 580 540 460 LO 700 680 660 650 630 610 590 560 530 500 470 HI 1330 1300 1260 1230 1190 1150 1100 1050 1000 960 920 830 030 1000 750 MED 1210 1190 1160 1130 1100 1050 1000 970 930 880 830 720 LO 1050 1030 1010 980 950 920 890 850 810 770 7380 HI 1580 1540 1500 1470 1440 1410 1370 1330 1280 1240 1200 1090 940 036 1200 MED 1400 1370 1340 1310 1280 1250 1220 1190 1150 1100 1050 920 LO 1100 1080 1060 1040 1010 980 950 920 890 890 1790 1760 1730 1700 1660 1630 1590 1550 1510 1480 1440 1370 1270 1120 042 1400 1050 MED 1500 1490 1470 1450 1420 1400 1380 1350 1320 1300 1270 1180 1070 LO 1110 1100 1090 1080 1060 1050 1040 HI 1910 1880 1840 1800 1750 1730 1700 1650 1600 1540 1480 1380 1300 1180 048 1600 1200 MED 1830 1790 1740 1700 1660 1620 1570 1540 1500 1450 1400 1320 1210 1120 LO 1700 1670 1640 1600 1560 1530 1490 1460 1430 1390 1340 1250 1170 High Static HI 2180 2140 2090 2060 2030 1990 1940 1870 1800 1750 1690 1580 1440 1270 990 048 1600 1200 MED 2080 2050 2020 1970 1920 1870 1820 1740 1650 1640 1620 1530 1320 1220 910 LO 1990 1950 1910 1880 1840 1810 1770 1710 1650 1620 1580 1460 1340
35. 0 061 400 0117 450 0194 500 0316 LEGEND ESP External Static Pressure HWR Hot Water Reheat FIELD SELECTABLE INPUTS Jumpers and DIP dual in line package switches on the control board are used to customize unit operation and can be configured in the field IMPORTANT Jumpers and DIP switches should only be clipped when power to control board has been turned off C Control Jumper Settings See Fig 19 WATER COIL FREEZE PROTECTION FP1 LIMIT SETTING Select jumper 3 JW3 FP1 Low Temp to choose limit of 10 F or 30 F To select 30 F as the limit DO NOT clip the jumper To select 10 F as the limit clip the jumper AIR COIL FREEZE PROTECTION FP2 LIMIT SET TING Select jumper 2 JW2 FP2 Low Temp to choose FP2 limit of 10 F or 30 F To select 30 F as the limit DO NOT clip the jumper To select 10 F as the limit clip the jumper ALARM RELAY SETTING Select jumper 1 JW1 AL2 Dry for connecting alarm relay terminal AL2 to 24 vac R or to remain as a dry contact no connection To connect AL2 to R do not clip the jumper To set as dry contact clip the jumper C Control DIP Switches The C Control has 1 DIP switch block with two switches See Fig 19 PERFORMANCE MONITOR PM DIP switch 1 will enable or disable this feature To enable the PM set the switch to ON To disable the PM set the switch to OFF STAGE 2 DIP switch 2 will enable or disable compressor delay Set DIP switch
36. 1730 1710 1690 1670 1650 1610 1570 1510 1450 1330 048 2060 2040 2010 1960 1880 1790 1660 1510 High Static 1200 MED 2050 2050 2040 2020 1990 1970 1940 1920 1890 1860 1830 1780 1710 1620 1490 1320 9 LO 1850 1850 1840 1830 1810 1800 1780 1760 1730 1700 1670 1600 1510 1380 1220 HI 2240 2240 2230 2220 2200 2160 2120 2090 2060 2040 2010 1960 1880 1790 1660 1510 060 2000 1500 MED 2050 2050 2040 2020 1990 1970 1940 1920 1890 1860 1830 1780 1710 1620 1490 LO 1850 1850 1840 1830 1810 1800 1780 1760 1730 1700 1670 1600 1510 060 2400 2400 2390 2380 2370 2360 2340 2320 2300 2270 2240 2200 2130 2060 1980 1890 1790 1660 1500 High Static 2000 1500 MED 2160 2160 2150 2150 2140 2110 2080 2060 2040 2030 2020 1980 1930 1880 1490 1750 1660 1530 ig LO 1930 1930 1920 1920 1910 1900 1890 1890 1880 1870 1850 1830 1800 1750 1700 1620 1530 Size 006 is available in 50RHC unit only TSize 041 is available in 5ORVC unit only NOTES 1 Gray areas denote ESP external static pressure where operation is not 5 Only two speed fan H amp M available on 575 v units recommended 6 For wet coil performance first calculate the face velocity of the air 2 Units factory shipped on medium speed Oth
37. 2 048 62 1 24 375 20 375 N 060 714 27 375 23 375 o A A X E Configuration Left Return Back Discharge j B Configuration Right Return Back Discharge M Blower LM Left BSP Right ASP Outlet L BSR Biewer CSP View VEW Outlet L PE l 3 Front pront SERVICE y S Configuration Left Return Right Discharge ACCESS Z Configuration Right Return Left Discharge Air Coil Opening Air Coil Opening Air Coil S R P Air Coil 14 P R 5 o Left CSP e ASP View Q Q Right View Front Front B B S Configuration Left Return Right Discharge Z Configuration Right Return Left Discharge Air Coil Opening Air Coil Opening AIRFLOW CONFIGURATION Code Discharge 5 Right E Back 2 Left B Back Fig 2 50RHR Dimensional Data WATER CONNECTIONS ELECTRICAL KNOCKOUTS in DISCHARGE CONNECTION RETURN CONNECTION OVERALL CABINET G H 1 h 50RHS Fife s Loop mA Duct Flange Installed 0 10 in Using Air Coil Opening UNITS Water B C fin Power gt Cond in E Therm Supply Return Return Depth Height ensate n Supply Height Depth Depth Height 015 018 22 4 53 2 193 24 54 95 9 7 12 2 5 0 ES 10 4 9 3 5 0 21 23 1 Ea 56 8 135 1 49 0 6 1 13 7 1 24 6 31 0 12 26 4 23 6 12 7 58 7 Ea 024 030 22 4 62 2 193 24 54 06 9 7 12 2 5 0 10 4 5 0 2 1 28 1 17 3 22 56 8 158 0 49 0 6 1 13 7 1 5 1 24 6 31 0 12 7 17 3 26 4 23 1
38. 2 7 5 3 71 4 43 9 5 6 2 2 19 3 24 54 0 6 9 7 12 2 5 0 6 8 10 4 5 0 2 1 32 1 17 3 2 49 0 6 1 13 7 1 5 1 4 6 31 0 12 7 z 26 4 28 23 2 7 53 81 5 43 9 5 4 54 06 1 7 14 2 13 6 13 3 5 8 2 9 36 1 19 3 2 13 7 1 5 9 7 34 5 33 8 5 6 11 7 14 2 5 8 5 0 13 6 13 3 41 1 19 3 2 5 20 29 7 36 1 14 7 12 7 34 5 33 8 104 4 49 0 5 6 11 7 14 2 5 8 5 0 13 6 13 3 58 2 46 1 19 3 2 5 20 29 7 36 1 14 7 12 7 34 5 33 8 14 7 117 1 49 0 5 NOTES 1 Condensate is 3 4 copper 2 Horizontal unit shipped with filter bracket only This bracket should be removed for return duct connection 3 Hanger kit is factory installed Isolation grommets are provided 4 Right and left orientation is determined by looking at water connection side Ao aa oN ao aN m I S 91 7 49 0 oo olo un 2 6 2 6 2 6 2 6 o LEGEND ASP Alternate Service Panel LEFT RETURN BSP Blower Servi
39. 5 9 18 3 9 7 35 6 35 6 10 9 5 6 43 4 38 9 22 4 25 6 40 6 2 4 5 4 E E 12 2 72 58 140 14 0 43 2 2 214 19 2 56 8 65 1 103 1 6 1 13 7 24 14 31 0 18 3 14 7 35 6 35 6 10 9 5 6 53 6 48 8 22 4 25 6 40 6 2 4 5 4 E 3 12 2 7 2 58 140 14 0 43 2 2 214 19 2 56 8 65 1 103 1 6 1 13 7 24 14 24 31 0 18 3 14 7 35 6 35 6 10 9 5 6 53 6 48 8 22 4 25 6 48 6 2 4 5 4 E 1 i 12 2 7 2 5 8 140 14 0 4 3 2 2 214 27 2 56 8 65 1 123 4 6 1 13 7 j 14 24 31 0 18 3 14 7 35 6 35 6 10 9 5 6 53 6 69 1 25 4 30 6 50 6 2 4 5 4 10 1 14 2 6 2 63 18 0 18 0 5 1 2 2 26 1 27 2 64 5 77 8 128 5 6 1 13 7 27 2 36 1 15 7 16 0 45 7 45 7 13 0 5 6 66 3 69 1 5 1 Condensate is 3 in and is switchable from side to front 2 Vertical unit shipped with filter bracket only extending from unit 2 5 inches This bracket should be removed when connecting return duct 3 Discharge flange field installed 4 Right and left orientation is determined by looking at water connection side 009 012 o aoc 015 024 RO og oo A N Oo o o Ao 042 048 Ao aR o oxJ o o Ro Ro xM o3 os o 3 PEN nz NN NO N Field Installed Water Connection Discharge Flange Shipped loose in LEGEND blower section Standa
40. AQUAZONE 50RHC RVC RHR RHS RVR RVS RDSO006 060 Water Source Heat Pump Units Installation Start Up and Service Instructions CONTENTS SAFETY CONSIDERATIONS INSTALLATION Step 1 Check Jobsite Step 2 Check Unit STORAGE PROTECTION INSPECT UNIT Step 3 Unit Location FIELD CONVERSION OF DISCHARGE AIR Step 4 Mounting the HORIZONTAL UNITS VERTICAL UNITS Step 5 Duct System SOUND ATTENUATION EXISTING DUCT SYSTEM Step 6 Condensate Drain HORIZONTAL UNITS VERTICAL UNITS VENTING Step 7 Piping Connections WATER LOOP APPLICATIONS GROUND WATER APPLICATIONS GROUND LOOP APPLICATIONS Step 8 Field Power Supply Wiring POWER CONNECTION SUPPLY VOLTAGE 208 VOLT OPERATION Step 9 Field Control Wiring THERMOSTAT CONNECTIONS WATER FREEZE PROTECTION AIR COIL FREEZE PROTECTION ACCESSORY CONNECTIONS WATER SOLENOID VALVES PRE START UP System Checkout PSC Blower Speed Selection FIELD SELECTABLE INPUTS C Control Jumper Settings C Control DIP Switches D Control Jumper Setting
41. E AND TERMINALS TIGHT Y N HAVE WATER CONNECTIONS BEEN MADE AND IS FLUID AVAILABLE AT HEAT EXCHANGER YN _ HAS PUMP BEEN TURNED ON AND ARE ISOLATION VALVES OPEN HAS CONDENSATE CONNECTION BEEN MADE AND IS A TRAP INSTALLED IS AN AIR FILTER INSTALLED Y N START UP IS FAN OPERATING WHEN COMPRESSOR OPERATES IF 3 PHASE SCROLL COMPRESSOR IS PRESENT VERIFY PROPER ROTATION PER INSTRUCTIONS YN _ UNIT VOLTAGE COOLING OPERATION PHASE AB VOLTS PHASE BC VOLTS PHASE CA VOLTS 1 3 phase 1 3 phase PHASE AB AMPS PHASE BC AMPS PHASE CA AMPS if 3 phase if 3 phase CONTROL VOLTAGE IS CONTROL VOLTAGE ABOVE 21 6 VOLTS Y N IF NOT CHECK FOR PROPER TRANSFORMER CONNECTION TEMPERATURES FILL IN THE ANALYSIS CHART ATTACHED COAXIAL HEAT COOLING CYCLE EXCHANGER FLUID IN F FLUID OUT F PSI FLOW HEATING CYCLE FLUID IN F FLUID OUT F PSI FLOW AIR COIL COOLING CYCLE AIR IN AIR OUT F HEATING CYCLE AIR IN AIR OUT F CL 1 HEATING CYCLE ANALYSIS PSI SAT SUCTION COMPRESSOR DISCHARGE Ji lt m Y 7 N F LIQUID LINE PSI PSI WATER IN WATER OUT LOOK UP PRESSURE DROP IN TABLES 22 24 TO DETERMINE FLOW RATE COOLING CYCLE ANALYSIS PSI SAT SUCTION F COMPRESSOR EXPANSION VALVE DISCHARGE tt 4 LIQUID LINE F F PSI PSI WATER IN WATER OUT gt LOOK UP PRESSURE
42. FUSE HACR PUMP UNIT CIRCUIT FUSE UNIT FLA FLA HACR ois 208 2809 197 254 49 260 100 59 72 15 67 79 15 2651 289 202 44 280 ose 52 63 15 07 80 71 15 oig 208 2803 197 254 71 380 81 98 15 89 107 15 85 15 208 280 1 197 254 10 3 560 110 114 139 20 128 155 25 2651 239292 87 470 oso 96 7 20 o7 106 129 20 208 230 3 197 254 711 450 110 99 5 90 108 20 57 15 208 280 1 197 254 122 670 130 135 165 25 08 143 174 25 030 159 25 208 230 3 197 254 7 7 550 130 90 109 15 98 117 15 64 15 208 230 1 197254 122 670 130 135 165 25 148 179 man 2651 239292 109 560 158 125 152 5 or 136 163 25 STATIC E NET 77 so i3 108 is 122 15 68 15 eeo ems 15s 5s o 08 36i 195 30 036 187 30 208 230 3 197254 96 630 180 114 138 20 122 146 20 4503 Meo 310 S7 19 07 65 76 15 208 230 1 197 254 135 730 180 153 186 30 08 173 207 30 Hic 2651 239292 128 710 200 148 180 30 o7z 194 30 STATIC 2062903 resa se soo 180 20 158 25 4503 414506 45 310 124 57 68 15 07 9
43. Fan Runs LEGEND RV Reversing Valve gt gt X lt gt X lt X lt Hc gt lt gt lt gt lt gt lt gt X lt gt X lt gt lt Table 30 Troubleshooting X X Green Status LED Off Check line voltage circuit breaker and disconnect Check for line voltage between L1 and L2 on the contactor Check primary secondary voltage on transformer X Reduced or no water flow in Check pump operation or valve operation setting cooling Check water flow adjust to proper flow rate X Reduced or no airflow in Check for dirty air filter and clean or replace heating Check fan motor operation and airflow restrictions External static too high Check Tables 8 13 Air temperature out of range Bring return air temperature within design parameters in heating x x Bad HP switch Check switch continuity and operation Replace x x mnsuftiient charge Check for refrigerant leaks Reduced or no water flow in Check pump operation or water valve operation setting Plugged strainer or filter Clean or replace x _ Inadequate antifreeze level Check antifreeze density with hydrometer po Water temperature out of Bring water temperature within design parameters range x x Badthermistor Check temperature and impedance correlation Check fan motor operation and airflow restrictions External static too high Check Tables 8 13 X Air temperature out of range Too much cold vent air Brin
44. KNOCKOUTS in DISCHARGE CONNECTION Outlet Opening Only RETURN CONNECTION Using Return Air Opening K L 1 2 conduit 3 4 conduit LEGEND HWG Hot Water Generator NOTES 1 Condensate is 3 4 in PVC and is switchable from side to front 2 Vertical unit shipped with filter bracket only extending from unit 2 5 inch This bracket should be removed when connecting return duct LEGEND Standard Filter Bracket ASP Alternate Service Panel FT BSP Blower Service Panel o p CAP Control Access Panel 7 CSP Compressor Service Panel GSF ASP CAP L ASP fo SSS 21 P m r3 Blower pe itn Opening Blower right opposite Opening Front Front Condensate 3 4 FPT u b L Air Coil Side Air Coil Side 3 Service Ly Access gt B 3 ae SER D Right Return Bottom Discharge Left Return Bottom Discharge Isometric View Floor Foot Print Floor Foot Print Top View Top View Power Supply 3 4 HV Knockout 1 1 J 1 6 J 16 1 2 Knockout G d Low Voltage L K J QOorF oy 1 2 LV Knockout N i ASP CSP z s CAP D CSP Oo Air Coil Air Coil BSP B T C T C
45. Low refrigerant charge Check superheat and subcooling Table 21 Restricted metering device Check superheat and subcooling Table 21 Replace x Defective reversing valve Manually check the four way valve to ensure all valves are operational X Thermostat improperly Check location and for air drafts behind thermostat located X Unit undersized Recheck loads and sizing check sensible cooling load and heat pump capacity X Scaling in water heat Check for scale water deposits and clean if necessary exchanger x X_ Inlet water too hot or cold Check load loop sizing loop backfill ground moisture Reduced or no airflow in Check for dirty air filter and clean or replace heating Check fan motor operation and airflow restrictions External static too high Check blower Tables 8 13 X Reduced or no water flow in Check pump operation or valve operation setting NEN 2 add Check water flow adjust to proper flow rate See Table 20 x metwatertoohot Check load loop sizing loop backfill ground moisture X Air temperature out of range Bring return air temperature within design parameters in heating X Scaling in water heat Check for scale water deposits and clean if necessary exchanger x x Unit overcharged Check superheat and subcooling Reweigh in charge a Guo Evacuate the refrigerant recharge the system and then weigh the new system refrigerant charge x x Restricted metering device Check superheat and subc
46. N A CAUTION To avoid equipment damage DO NOT leave system filled in a building without heat during the winter unless anti freeze is added to system water Condenser coils never fully drain by themselves and will freeze unless winterized with antifreeze START UP Use the procedure outlined below to initiate proper unit start up NOTE This equipment is designed for indoor installation only Table 17 HWR Operating Modes OUTPUT MODE G 2 G Y1 2 Reheat No Demand On Off On Off Off Off Off Off Fan Only On Off On Off On Off Off Off Cooling Stage 1 On On On On Off Off Cooling Stage 2 On On On On On Off Cooling and Dehumidistatt On On On On On Off Off Dehumidistat Only On Off On On On On On Heating Stage 1 Off Off On On Off Off Heating Stage 2 Off Off On On On Off Heating and Dehumidistat Off Off On On On Off Off Not applicable for single stage units Full load operation for dual capacity units TCooling input takes priority over dehumidify input Deluxe D is programmed to ignore the H demand when the unit is in heating mode NOTE On Off is either on or off Water Out To Water Loo p Mixing Valve Water In From Water Loop NOTE All components shown are internal to the heat pump unit Refrigerant Out Cooling Refrigerant In Cooling Entering Air Leaving Reheat Evaporator Coil Coil Fig 28 HWR Schema
47. OTE It is not possible to convert return air between left or right return models in the field due to refrigerant piping changes Preparation The unit should be on the ground in a well lit area for conversion Hung units should be taken down to ground level before converting Side to Back Discharge Conversion 1 Remove screws to free the top and discharge panels See Fig 11 2 Remove the access panel and set aside 3 Lift the discharge panel from side of unit and rotate it to back using care not to damage blower wiring 4 Check blower wire routing and connections for undo tension or contact with sheet metal edges Re route if necessary 5 Check refrigerant tubing for contact with other compo nents Adjust if necessary 6 Reinstall top panel using screws set aside in Step 1 NOTE Location for some screws at bottom of discharge panel may have to be changed 7 Manually spin fan wheel to check for obstructions Adjust for any obstruction found 8 Replace access panel Back to Side Discharge Conversion Follow instructions above for Side to Back Discharge Conversion noting the panels would be reversed Water Remove Screws Connection End Move to Side Replace Screws Return Air Back Discharge Discharge Air Fig 11 Conversion Left Return Side Discharge to Back Discharge Water Connection End Return Air m Side Discharge Water Connection End Back Disch Discharge Ai
48. alled 20 10 in Using Air Coil Opening 50RVC Water 1 2 conduit 1 conduit 3 4 conduit e r Power o P 5 Therm Supply Supply Return Return Depth Height Out Condensate Supply Width Depth Depth Height 8 9 4 28 61 23 12 2 9 9 8 9 8 9 5 1 9 0 9 0 55 2 1 162 9 9 1 24 0 7 1 15 6 5 9 1 3 7 8 14 9 22 5 22 7 12 9 22 9 229 140 5 41 1 25 1 21 5 21 5 39 0 1 8 3 8 15 213 6 8 1 2 3 9 4 4 1 10 1 6 4 3 8 14 0 14 0 5 3 2 3 18 3 20 2 54 6 54 6 99 1 4 5 9 7 38 69 1 20 6 5 8 1 9 10 5 18 1 25 7 16 1 9 5 35 6 35 6 13 6 5 8 46 5 51 3 21 5 26 0 44 0 2 0 3 7 16226 104 2 3 9 4 4 10 1 64 3 8 14 0 14 0 5 1 2 3 22 8 24 2 54 6 66 0 111 8 5 1 9 4 41 1 6 6 28 4 58 1 9 10 18 25 7 16 1 9 5 35 6 356 13 1 5 8 57 9 61 4 8 2 3 1 1 5 1 21 5 21 5 39 0 2 6 9 4 41 1 10 1 64 3 8 14 0 14 0 5 3 2 3 18 3 20 2 5 1 1 1 009 012 RO 018 030 NJON 036 amp 042 oN 54 6 54 6 99 1 4 41 7 6 6 20 6 5 10 1 25 7 16 1 9 5 35 6 35 6 13 6 5 8 46 5 51 3 4 94 8 1 9 24 0 325 46 0 1 8 5 9 16 7 2 3 10 1 2 3 1 4 10 1 6 10 826 116 8 4 5 14 9 42 4 5 8 25 7 58 2 5 10 5 18 25 7 5 1 Condensate is 3 4 in 19 1 mm 2 Filter bracket extending from unit 2 5 in 6 4 cm This bracket should be removed when connecting return duct 3 Discharge flange
49. ased electronic thermostats YEL UNIT POWER SUPPLY REFER TO DATA PLATE USE COPPER CONDUCTORS ONLY SEE NOTE 2 HOT WATER SERO POWER SUPPLY USE KONDUCTORS ONN OTES 2 AND 9 GROUND li AQUA H HWTS STAT BLK I Tere ESQ C Core OMPONENT LOCATION SEE NOTE 5 RELAY Y ax Ter j s a o eo i2 E COMPRESSOR h 9 COMPRESSOR NOTE a HOT WATER GENERATOR PUMP 4 9 PRI Cow FP NOTE amp P M oQ COOLING A Used i ROUND Q Cow rene ANT COMMON VUE 1 Tw mi RV tb ALARM JWI rd NOT USED RANS ptm o COMPLETE C 1 n zy SEE NOTE 6 FOR mms SEE NOTE 6 MICROPROCESSOR 7 DRY ALARM CONTACT CONTROL LOGIC E _ O LEGEND AL Alarm Relay Contacts LOC Loss of Charge Pressure Switch BM Blower Motor MV Motorized Valve Relay Contactor Coil BMC Blower Motor Capacitor NEC National Electrical Code BR Blower Relay P1 Field Wiring Terminal Block Condensate Pan CB Circuit Breaker PM Performance Monitor cc Compressor Contactor RV R
50. at water connection side Field Installed Discharge Flange Shipped loose in LEGEND Water Connection ASP Alternate Service Panel blower section Access Panels BSP Blower Service Panel CAP Control Access Panel Standard Filter Bracket CSP Compressor Service Panel RIGHT RETURN LEFT RETURN Air Coil B e L e 8 3 Service L z 5 La Access 5 Left Return CSP ASP right CAP Opposite Air Coil Side Air Coil Side J ee R Configuration View Right Return L Configuration Top View Left Return Front Water P 3 Service Isometric pomnseuons O j Access View RA R_ r 1 000 r T L Air Coil P d Air Coil 8 8 Q Condensate Power Supply 3 4 FPT 3 4 HV Knockout Power for CAP o Condensate Pump 1 2 Knockout ASP CSP Low Voltage LV Knockout H L _ Front Back Back Front G Qo F Ooty E ipi R Configuration Right Return Right View L Configuration Left Return Left View Air Coil Opening Air Coil Opening AIRFLOW CONFIGURATION Code Discharge R Top Fig 7 50RVS Dimensional Data 12 Front View WATER CONNECTIONS ELECTRICAL
51. ate the transfer of vibration to the duct system a flexible connector is recom mended for both discharge and return air duct connections on metal duct systems The supply and return plenums should in clude internal duct liner of fiberglass or be made of duct board construction to maximize sound attenuation of the blower Installing the WSHP unit to uninsulated ductwork in an uncon ditioned space is not recommended since it will sweat and adversely affect the unit s performance To reduce air noise at least one 90 degree elbow could be included in the supply and return air ducts provided system performance is not adversely impacted The blower speed can also be changed in the field to reduce air noise or excessive air flow provided system performance is not adversely impacted EXISTING DUCT SYSTEM If the unit is connected to existing ductwork consider the following Verify that the existing ducts have the proper capacity to handle the unit airflow If the ductwork is too small install larger ductwork Check existing ductwork for leaks and repair as necessary NOTE Local codes may require ventilation air to enter the space for proper indoor air quality Hard duct ventilation may be required for the ventilating air supply If hard ducted venti lation is not required be sure that a proper air path is provided for ventilation air to unit to meet ventilation requirement of the space Vibration Abso
52. b Operating Packaged HORIZONTAL Air Coil Dimensions H x W in Total Face Area ft2 Tube Size in Fin Spacing FPI Number of Rows Filter Standard 1 in Throwaway Weight Ib Operating Packaged LEGEND Fins per Inch HWG Hot Water Generator PSC Permanent Split Capacitor gt Rotary Scroll 44 44 48 6 74 74 10 rum Ed Poca PSOR aoe PSC 3 1 r 7 5 3 9 I 7 9x7 9x7 11x10 Oh lt 3 1 t1 7 070 104 2 24x 20 443 453 NOTES 1 All units have spring compressor mountings TXV thermostatic expansion valve expansion devices and 1 and 3 in electrical knockouts 2 Size 030 and 036 available as high static units WATER Fang Deu pp PE OVERALL CABINET 50RHC in 2 out nm DISCHARGE CONNECTION Duct Flange Installed 0 10 in UNITS Power Therm Supply Fetar S Depth Height Supply Height Depth Bape eig 006 012 018 030 048 in 24 1 54 1 21 1 19 4 5 61 2 137 4 53 6 49 2 14 oco NOTES 1 Condensate is 3 4 in FPT copper 2 Horizontal unit shipped with filter bracket only This bracket should be removed for return duct connection 3 Hanger kit is factory installed LEGEND LEFT RETURN ASP Alternate Service Panel BSP Blo
53. be changed by moving the blue wire on the fan motor ter minal block to the desired speed as shown in Fig 27 The S5ORHC RVC units are designed to deliver rated airflow at nominal static 0 15 in wg on medium speed factory setting and rated airflow at a higher static 0 4 to 0 5 in wg on high AIRFLOW Cfm 0 00 0 05 0 10 0 15 0 20 0 25 0 30 0 35 0 40 0 45 0 50 0 60 0 70 0 80 0 90 HI 300 290 280 270 260 250 240 230 210 190 160 110 006 200 150 MED 240 230 220 210 200 190 180 160 140 130 110 LO 220 210 200 200 190 180 160 150 1302 130 HI 450 440 430 420 400 390 370 350 320 310 300 230 009 300 225 MED 410 400 390 380 360 350 340 330 310 290 270 LO 370 360 350 340 320 320 310 300 280 260 240 470 460 450 440 430 420 400 390 380 370 350 330 012 375 300 MED 410 400 380 370 360 360 350 340 330 320 310 290 LO 340 330 320 320 310 310 300 300 290 290 HI 750 730 710 700 680 660 630 600 570 540 500 400 015 500 375 MED 660 640 620 610 590 570 550 530 500 470 440 370 LO 580 570 550 540 520 500 480 460 430 400 370 HI 850 820 790 770 740 710 670 640 600 560 520 450 019 450 MED 700 680 660 640 620 590 560 530 500 470 440 LO 600 580 560 540 510 490 460 460 HI 980 950 920 890 860 830 790 760 720 680 640 540 024 800 MED 850 830 800 77
54. cause personal injury or death Before installing or servicing system always turn off main power to system There may be more than one disconnect switch Turn off accessory heater power if applicable GENERAL This Installation and Start Up Instructions literature is for Aquazone water source heat pump systems Water source heat pumps WSHPs are single package hori zontally and vertically mounted units with electronic controls designed for year round cooling and heating Aquazone WSHPs are available in the following unit configurations RHC standard efficiency with horizontal airflow and right left or back discharge RHR high efficiency with horizontal airflow and right left or back discharge RHS premium efficiency with horizontal airflow and right left or back discharge e RVC standard efficiency with vertical airflow and top discharge RVR high efficiency with vertical airflow and top discharge RVS premium efficiency with vertical airflow and top discharge RDS premium efficiency with vertical airflow and bot tom discharge downflow IMPORTANT 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 responsi bility of the installing contractor to determine and comply with ALL applicable codes an
55. ce Panel RIGHT RETURN Water Water CAP Control Access Panel Connection Connection csp CSP Compressor Service Panel ASP um 2 Service 2 Service Access Front J Power Supply i 3 4 Knockout Right Return 1 2 3 25 1 6 40 6mm 3 25 Low Voltage i 1 2 Knockout CAP Right H g G Q 4 7 Discharge 2 efs Discharge t i Bark ga Condensate Discharge 3 4 FPT Discharge Front View n M Unit Hanger Detail a Model x z Blower BSP BSP sic t C Blower o Y 5 015 018 53 1 24 375 20 375 7 Outlet L Outi o ir 024 036 62 1 24 375 20 375 utlet 042 048 71 1 27 375 23 375 060 76 1 27 375 23 375 N ci 070 81 1 27 375 23 375 a X E Configuration Left Return Back Discharge B Configuration Right Return Back Discharge M J Blower Left Right ASP Outlet L 5 Blower CSP View View Outlet L k rm 1 3 Front Front SERVICE S Configuration Left Return Right Discharge ACCESS 2 Configuration Right Return Left Discharge Air Coil Opening Air Coil Opening Air Coil S JR P Air Coil 14 P R S 21 I o Left CSP ASP View Right View Front Front B B S Configuration Left Return Right Discharge Z Configuration Right Return Left Discharge Air Coil Opening Air Coil Opening AIRFLOW CONFIGURATION Code Discharge 5 Right E Back 2 B Back Fig 3 50RHS D
56. condensing temperature The dif ference equals subcooling temperature 6 Compare the subcooling temperature with the normal temperature listed in Table 21 If the measured liquid line temperature does not agree with the required liquid line temperature ADD refrigerant to raise the temperature or REMOVE refrigerant using standard practices to lower the temperature allow a tolerance of 3 F Refrigerant Charging A WARNING To prevent personal injury wear safety glasses and gloves when handling refrigerant Do not overcharge system this can cause compressor flooding NOTE Do not vent or depressurize unit refrigerant to atmosphere Remove and reclaim refrigerant following accepted practices Air Coil Fan Motor Removal A CAUTION Before attempting to remove fan motors or motor mounts place a piece of plywood over evaporator coils to prevent coil damage Disconnect motor power wires from motor terminals before motor is removed from unit 1 Shut off unit main power supply 2 Loosen bolts on mounting bracket so that fan belt can be removed 3 Loosen and remove the 2 motor mounting bracket bolts on left side of bracket 4 Slide motor bracket assembly to extreme right and lift out through space between fan scroll and side frame Rest motor on a high platform such as a step ladder Do not allow motor to hang by its power wires AIRFLOW AIRFLOW oF F CF CF THERMISTOR EXPANSION VALVE
57. d Entering Air db wb 70 2 5 3 0 gpm per ton Max Entering Air db wb 80 WATER LIMITS Min Entering Water 20 Normal Entering Water 30 60 LEGEND db Dry Bulb wb Wet Bulb NOTE Value in heating column is dry bulb only Any wet bulb read ing is acceptable Table 20 Water Temperature Change Through Heat Exchanger HEATING WATER FLOW RATE GPM DROP F For Closed Loop Ground Source or Cooling Boiler Systems at 3 gpm ton For Open Loop Ground Water Systems at 1 5 gpm ton Unit Start Up Heating Mode NOTE Operate the unit in heating cycle after checking the cooling cycle Allow 5 minutes between tests for the pressure or reversing valve to equalize 1 Turn thermostat to lowest setting and set thermostat switch to HEAT position 2 Slowly turn the thermostat to a higher temperature until the compressor activates 3 Check for warm air delivery at the unit grille within a few minutes after the unit has begun to operate 4 Check the temperature of both supply and discharge wa ter Compare to Table 21 If temperature is within range proceed If temperature 15 outside the range check the heating refrigerant pressures in Table 21 5 Once the unit has begun to run check for warm air deliv ery at the unit grille 6 Check air temperature rise across the coil when compres sor 15 operating Air temperature rise should be between 20 and 30 F after 15 minutes at load 7 Check for vibrati
58. d regulations INSTALLATION Step 1 Check Jobsite Installation operation and maintenance instructions are provided with each unit Before unit start up read all manuals and become familiar with the unit and its operation Thoroughly check out the system before operation Complete the inspections and instructions listed below to prepare a unit for installation See Tables 1 3 for unit physical data HORIZONTAL UNITS SORHC RHR RHS Horizontal units are designed for indoor installation only Be sure to allow adequate space around the unit for servicing See Fig 1 3 for overall unit dimensions Refer to Fig 4 for an illustration of a typical horizontal installation VERTICAL AND DOWNFLOW UNITS SORVC RVR RVS RDS Vertical units are designed for indoor installa tions While vertical units are typically installed in a floor level closet or a small mechanical room the unit access guidelines for these units are very similar to those described for horizontal units See Fig 5 8 for overall dimensions Refer to Fig 9 for an example of a typical vertical installation Refer to Fig 10 for a sample downflow installation 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 used in these units quickly become clogged with construction dirt and debris which may cause system damage Step 2 Check Unit
59. ds Fan Motor Std High Static Hp Blower Wheel Size D x W in Std High Static WATER CONNECTION SIZE FPT VERTICAL Air Coil Dimensions H x W in Total Face Area ft2 Tube Size in Fin Spacing FPI Number of Rows Filter Standard 1 in Throwaway Weight Ib Operating Packaged HORIZONTAL Air Coil Dimensions H x W in Total Face Area ft2 Tube Size in Fin Spacing FPI Number of Rows Filter Standard 1 in Throwaway Weight Ib Operating Packaged LEGEND Fins per Inch PSC Permanent Split Capacitor Size 006 available in 5ORHC unit only TSize 041 available in 5ORVC unit only PSC 3 9 7 10 8 os 9050 Scroll 2 4 9 x 8 10 x 8 24 x 21 25 3 62 74 14 x 10 14 x 10 1 24 21 25 24 28 25 20 28 25 3 62 4 71 4 71 3 8 12 3 1 14x24 1 18x24 278 285 20x35 4 86 8 12 3 1 20x24 1 20x14 278 285 NOTES 1 All units have grommet compressor mountings and and 3 4 electrical knockouts 2 All sizes available as high static units Table 2 Physical Data Aquazone 50RHR RVRO06 060 Units UNIT 50RHR RVR COMPRESSOR 1 each FACTORY CHARGE R 22 oz PSC FAN MOTOR AND BLOWER Fan Motor Type Speeds Fan Motor Hp Blower Wheel Size D x W in WATER CONNECTION SIZE FPT VERTICAL Air Coil Dimensions H x W in Total Face Area ft2 Tube Size in Fin Spacing
60. dual compressor application all compressor relays and related functions will op erate per their associated DIP switch 2 setting 51 HEATING STAGE 3 In Heating Stage 3 mode the Fan Enable Fan Speed and Compressor relays remain on The EH1 output is turned on immediately With continuing Heat Stage 3 demand EH2 will turn on after 10 minutes EH1 and EH2 are turned off immediately when the Heating Stage 3 demand is re moved The control reverts to Heating Stage 2 mode Output EH2 will be off if FP1 is greater than 45 F AND FP2 when shorted is greater than 110 F during Heating Stage 3 mode This condition will have a 30 second recogni tion time Also during Heating Stage 3 mode EH2 Fan Enable and Fan Speed will be ON if G input is not active EMERGENCY HEAT In Emergency Heat mode the Fan Enable and Fan Speed relays are turned on The output is turned on immediately With continuing Emergency Heat de mand EH2 will turn on after 5 minutes Fan Enable and Fan Speed relays are turned off after a 60 second delay The control reverts to Standby mode Output EH2 Fan Enable and Fan Speed will be ON if the G input is not active during Emergency Heat mode COOLING STAGE 1 In Cooling Stage 1 mode the Fan Enable compressor and RV relays are turned on immediately If configured as stage 2 DIP switch set to OFF then the com pressor and fan will not turn on until there is a stage 2 demand The fa
61. ductors Failure to follow this safety precaution could lead to equipment damage All field installed wiring including the electrical ground MUST comply with the National Electrical Code NEC as well as applicable local codes In addition all field wiring must conform to the Class II temperature limitations described in the NEC Refer to unit wiring diagrams Fig 19 22 for a schematic of the field connections which must be made by the installing or electrical contractor Refer to Tables 5 7 for fuse sizes Consult the unit wiring diagram located on the inside of the compressor access panel to ensure proper electrical hookup The installing or electrical contractor must make the field connections when using field supplied disconnect Operating voltage must be the same voltage and phase as shown in Electrical Data shown in Tables 5 7 Make all final electrical connections with a length of flexi ble conduit to minimize vibration and sound transmission to the building POWER CONNECTION Make line voltage connection by connecting the incoming line voltage wires to the L side of the CC terminal as shown in Fig 23 See Tables 5 7 for correct wire and maximum overcurrent protection sizing SUPPLY VOLTAGE Operating voltage to unit must be within voltage range indicated on unit nameplate On 3 phase units voltages under load between phases must be balanced within 2 Use the following formula to deter mine the percentage vol
62. e routed through areas 024 45 1 1 14 0 0 9 i i n 18 12 15 TE subject to freezing antifreeze is needed 3 7 0 8 8 0 7 0 7 Alcohols and glycols are commonly used as antifreeze 030 25 i E agents Freeze protection should be maintained to 15 F below XS 3 id a the lowest expected entering loop temperature For example if 036 17 the lowest expected entering loop temperature is 30 F the leav 9 0 3 9 7 3 4 3 2 ing loop temperature would be 22 to 25 F Therefore the freeze 5 2 1 6 15 14 1 3 rotection should be at 15 30 F 15 F 15 F 042 8 0 32 3 0 2 8 2 6 protection should be at 15 F 30 5F 10 5 5 1 4 7 44 4 1 6 0 4 1 9 1 8 17 IMPORTANT alcohols should be pre mixed and 048 i28 3 d Er 22 pumped from a reservoir outside of the building or zm 16 05 introduced under water level to prevent fuming 060 11 3 2 1 1 9 1 8 15 0 34 3 1 3 0 9 0 14 13 12 Calculate the total volume of fluid in the piping system See 070 ice 2 ET Table 25 Use the percentage by volume in Table 26 to deter mine the amount of antifreeze to use Antifreeze concentration should be checked from a well mixed sample using a hydrome ter to measure specific gravity FREEZE PROTECTION SELECTION The 30F 1 factory setting water should be used to avoid freeze damage to the unit Once antifreeze is selected the JW3 jumper FP1 should be clipped on the control to select the low temperature anti freeze 13 F set point to
63. ening G H I Water 2 2 50RVS ji B c conde in Th Power d Ret R T ond in upply Supply eturn Return Depth Height ensate no Supply Height Depth Depth asia 224 256 406 24 54 97 a v 57 97 12 2 72 58 140 140 43 22 211 56 8 651 10 61 24 6 4 2 14 5 24 6 3 183 147 356 356 10 53 6 024 030 224 256 446 24 54 97 5 v 5 7 97 72 58 140 140 43 22 211 56 8 651 1133 61 137 246 4 2 14 5 24 6 183 14 7 356 356 109 56 536 036 224 256 486 24 54 97 XE 57 97 12 2 72 58 140 140 43 2 56 8 651 1234 61 137 246 4 2 14 5 24 6 310 183 147 356 356 10 0427028 254 306 506 24 54 197 ola 8 1 11 7 14 2 62 63 180 645 778 1285 61 137 272 2 20 6 29 7 361 157 160 457 457 254 306 546 24 54 107 PER EP 8 1 117 14 2 62 63 645 778 1387 61 137 272 2 20 6 29 7 361 157 160 457 457 254 306 586 24 54 107 EE 8 1 117 14 2 62 63 180 180 645 778 1488 61 137 272 2 20 6 297 361 157 160 457 457 NOTES 1 Condensate is 3 4 and is switchable from side to front 2 Vertical unit shipped with filter bracket only extending from unit 2 5 inches This bracket should be removed when connecting return duct 3 Discharge flange field installed 4 Right and left orientation is determined by looking
64. er speeds require field coil Face Velocity fpm Airflow cfm Face Area sq ft Then for veloci selection ties of 200 fpm reduce the static capability by 0 03 in wg 300 fpm by 3 All airflow is rated at lowest voltage if unit is dual voltage rated i e 208 v 0 08 in wg 400 fpm by 0 12 in wg and 500 fpm by 0 16 in wg for 208 230 v units 7 Airflow in cfm with net dry coil and clean air filter 4 All units ARI ISO ASHRAE 13256 1 rated on high fan speed Table 10 50RVC Blower Performance with Hot Water Reheat HWR Option REHEAT EXTERNAL STATIC PRESSURE ESP LOSS COIL FACE VELOCITY 048 060 fpm in wg in wg in wg 200 0 038 250 0 040 300 0 045 350 0 059 400 0 094 450 0 189 500 0 320 NOTE For 50RVC units with HWR calculate coil face velocity of the entering air Find the external static pressure loss for the reheat application This loss includes the wet coil loss 28 Table 11 50RVC Blower Performance with Wet Coil COIL FACE VELOCITY WET COIL REDUCTION fpm in wg 200 0 030 250 0 055 300 0 080 350 0 100 400 0 120 450 0 140 500 0 160 Table 12 50RHS RVS RDS Blower Performance AIRFLOW Cfm External Static Pressure in wg 0 00 0 05 0 10 0 15 0 20 0 25 0 30 0 35 0 40 0 45 0 50 0 60 0 70 0 80 0 90 1 00 Hi 840 830 820 800 780 750 730 690 660 610 Med 770 760 750 740 720 710 690 670 640
65. es of continual stage 2 demand NOTE 2 will not turn on or if on will turn off if FP1 tem perature is greater than 45 F and FP2 is greater than 110 F EMERGENCY HEAT In emergency heat mode terminal W is active while terminal Y is not Terminal G must be active or the W terminal 15 disregarded EH1 is immediately turned on EH2 will turn on after 5 minutes of continual emergency heat demand Units with Aquazone Deluxe D Control STANDBY FAN ONLY The compressor will be off The Fan Enable Fan Speed and reversing valve RV relays will be on if inputs are present If there is a Fan 1 demand the Fan Enable will immediately turn on If there is a Fan 2 demand the Fan Enable and Fan Speed will immediately turn on NOTE DIP switch 5 on S1 does not have an effect upon Fan 1 and Fan 2 outputs HEATING STAGE 1 In Heating Stage 1 mode the Fan Enable and Compressor relays are turned on immediately Once the demand is removed the relays are turned off and the control reverts to Standby mode If there is a master slave or dual compressor application all compressor relays and related functions will operate per their associated DIP switch 2 setting on 51 HEATING STAGE 2 In Heating Stage 2 mode the Fan Enable and Compressor relays are remain on The Fan Speed relay 15 turned on immediately and turned off immediately once the demand 15 removed The control reverts to Heating Stage 1 mode If there is a master slave or
66. eversing Valve Coil Solenoid Coil Sensor Condensate Overflow TRANS Transformer COMPR Compressor FP1 Sensor Water Coil Freeze Protection 2 Sensor Air Coil Freeze Protection HP High Pressure Switch HWTS High Leaving Water Temperature Switch JW1 Jumper Alarm Optional wiring TXV Thermostatic Expansion Valve Field Line Voltage Wiring Field Low Voltage Wiring Printed Circuit Trace Optional Wiring Temperature Switch Thermistor Ground Wire Nut 5 3 Compressor and blower motor thermally protected internally All wiring to the unit must comply with NEC and local codes Transformer is wired to 265 v BRN lead for 265 1 60 units or 208 v RED lead for 208 1 60 For 230 1 60 switch RED and ORG leads at L1 and insulate RED lead Transformer is energy limiting or may have circuit breaker 4 FP1 thermistor provides freeze protection for water When using antifreeze solutions cut JW3 jumper 5 Typical Aquazone thermostat wiring shown Refer to thermostat installation instructions for wiring to the unit Thermostat wiring must be Class 1 and voltage rating equal to or greater than unit 24 v alarm signal shown For dry alarm contact cut JW1 jumper and dry contact will be available between AL1 and AL2 Transformer secondary ground via control board standoffs and Screws to control box Ground available from top two standoffs as shown For high or
67. field installed N 048 060 Field Installed Discharge Flange Shipped loose inside LEGEND blower section Access Panels ASP Alternate Service Panel Standard Filter Bracket BSP Blower Service Panel CAP Control Access Panel CSP Compressor Service Panel Air Coil 2 61cm Service or in 5 R 2 61cm Isometric Service View U Op 25 4 mm F1 Air Coil Air Coil M Condensate 3 4 Power Supply 19 1 mm FPT 3 4 19 1 mm HV Knockout Low Voltage 1 2 12 7 mm LV Knockout Low Voltage 1 2 12 7 mm LV Knockout Back Back Right Return Right View Left Return Left View Air Coil Opening Air Coil Opening Front View Note Shaded areas are recommended service areas not required AIRFLOW CONFIGURATION Code Discharge L Top R Top Fig 5 50 Dimensional Data 10 WATER CONNECTIONS ELECTRICAL KNOCKOUTS in DISCHARGE CONNECTION RETURN CONNECTION OVERALL CABINET G H 1 h 1 50RVR Duct Flange Installed 0 10 in Using Air Coil Opening ii B c Power J Supply SUDI Return Reim Depth Height ensate Supply Height Depth Depth Height 22 4 21 6 226 26 54 E 4 E 8 2 10 6 68 5 8 8 0 6 0 2 2 17 1 9 3 56 8 54 9 57 4 6 6 13 2 14 20 8 26 9 17 3 147 20 3 15 2 5 43 4 2 22 4 21 6 346 24 48 i 3 10 2 7 2 38 140 14 0 4 3 2 2 17 1 15 3 56 8 54 9 87 9 6 1 12 2 21 2
68. g entering air temperature within design parameters X Improper freeze protect set Normal airside applications will require 30 F only ting 30 F vs 10 F Blocked drain Check for blockage and clean drain Improper trap Check trap dimensions and location ahead of vent 1 x Moitueonsenso Check for moisture shorting to air coil x x Under voltage Check power supply and 24 vac voltage before and during operation Check power supply wire size Check compressor starting Check 24 vac and unit transformer tap for correct power supply voltage x J HeatingmodeFP2 125F Check for poor airflow or overcharged unit X Cooling mode FP1 gt 125F for poor water flow or airflow OR FP2 lt 40 F X FP2 temperature is higher Swap FP1 and FP2 thermistors than FP1 temperature x x No compressor operation See scroll compressor rotation section x x Conto board Reset power and check operation x x Jlbpiryairfiter Check and clean air filter x x uitselection Unit may be oversized for space Check sizing for actual load of space x x Compressor overload Check and replace if necessary x x Unit locked out Check for lockout codes Reset power x x Compressor overload Check compressor overload Replace if necessary HEATING COOLING POSSIBLE CAUSE SOLUTION Check for 24 vac between R and C on controller X Water temperature out of Bring water temperature within design parameters range in cooling Dirty air
69. han during the warmer months This fluctuation is normal and should be con sidered when charging the system initially Run the unit in either heating or cooling for several minutes to condition the loop to a homogenous temperature When complete perform a final flush and pressurize the loop to a static pressure of 40 to 50 psi for winter months or 15 to 20 psi for summer months After pressurization be sure to remove the plug from the end of the loop pump motor s to allow trapped air to be discharged and to ensure the motor housing has been flooded Be sure the loop flow center provides adequate flow through the unit by checking pressure drop across the heat exchanger Compare the results to the data in Tables 22 24 Table 21 Typical Unit Operating Pressures and Temperatures ENTERING COOLING WATER GPM Suction Discharge Super Sub TON Pressure Pressure heat cooling psig psig F F F 1 75 85 90 105 25 40 12 20 2 3 74 84 80 95 25 40 11 18 3 0 73 83 70 85 25 40 10 16 10 18 9 16 75 85 74 84 125 155 120 142 12 20 12 20 75 85 260 300 8 15 10 22 0 73 83 115 138 12 20 8 14 1 75 85 179 198 9 16 8 15 2 3 74 84 168 186 9 16 8 14 3 0 73 83 158 175 9 16 8 12 T 75 85 229 251 9 17 8 15 90 2 3 74 84 218 241 9 17 8 14 3 0 73 83 208 230 9 17 8 12 1 5 77 87 280 320 8 15 10 25 2 3 76 86 270 310 8 15 10 24 3 0 LEGEND DB Dry Bulb EAT Entering Air Tempera
70. ic 1000 750 MED 1130 1080 1030 930 820 750 19 LO 1050 1040 1030 1010 980 940 910 880 840 750 HI 1520 1500 1480 1460 1430 1400 1370 1350 1320 1270 1210 1110 960 840 036 1200 MED 1150 1150 1140 1140 1130 1130 1120 1110 1100 1070 1040 940 LO 1010 1010 1000 1000 990 990 980 980 970 950 930 036 HI 1530 1500 1470 1400 1290 1170 High Stati 1200 MED 1360 1350 1340 1330 1320 1310 1300 1280 1260 1250 1230 1150 1070 910 ig mE LO 1030 1020 1010 1010 1000 1000 990 980 960 950 930 1380 1370 1350 1330 1300 1260 1220 1170 1120 1080 1040 890 0411 1325 950 MED 1230 1220 1200 1190 1180 1150 1120 1080 1030 990 950 LO 1040 1030 1010 1000 990 970 950 HI 1640 1610 1580 1550 1520 1490 1450 1410 1370 1330 1290 1190 1100 042 1350 1050 MED 1490 1470 1440 1420 1390 1370 1340 1310 1270 1230 1190 1120 1010 LO 1140 1140 1130 1130 1120 1110 1100 1080 1060 1010 042 HI 1550 1540 1520 1500 1470 1460 1450 1380 1240 1080 1350 1050 MED 1390 1380 1370 1360 1350 1340 1320 1310 1300 1280 1250 1180 1080 High Static LO HI 1980 1950 1910 1860 1800 1740 1680 1490 1280 1280 048 1200 MED 1940 1920 1900 1880 1860 1820 1770 1740 1710 1660 1600 1410 1000 LO 1770 1750
71. igh speed tap Tape off unconnected end of BRN jumper Fig 21 Typical Aquazone Complete C and LON Controller Wiring 21 YEL eee RED l mem PeR els dS ws j LON CONTROLLER l 1 z 1 DELUXE D 1 XR MICROPROCESSOR XY 7 uw Sek CONTROL LOGIC 8 meike 6 ae 3 POWER SUPPLY DES tog v sus ANN CU use 11 Fe rest 8 5 CONDUCTORS ONLY EL 7 1 COMPONENT LOCATION ics co 2N U on E iP ili x i 01 orron GTS water _ ___ e Cm urs DISABLE ENABLE acci 0 SEE TABLE ALT MTR BOX FOR 380V 4 460V ETE a Couent row popu PM Funcrions T BoiLERLEss een 18 7 H Hi FAN DEHUMID Wei YEL M BLU 3 1 BOILERLESS 40 F 50 1 NoT UseD 4 5 TR BM RED 4 BRN e CRAGE A TLR E ngad ALT MIR Box FOR 575 _ _ Ste Nore 9j LEGEND AL Alarm Relay Contacts BM
72. imensional Data Field supplied transition to minimize pressure loss Supply Air Insulated supply duct with at least one 90 degree elbow Accessory Unit to reduce air noise Electric Heat Disconnect field supplied if applicable 3 8 threaded rods Filter Access Return Ai Ductwork not shown Thermostat Power Wiring Flexible Connection Unit Hanger 3 8 Threaded Rod by others Vibration Isolator white dot compressor end and red dot blower end size 060 and 070 by others Double Hex Nuts by others 50RHR RHS Install screw as shown Sizes 042 060 Optional on smaller sizes 50RHC Screw must only be 1 2 long to Integral hanger support prevent damage pre attached in factory UNIT HANGER ISOLATION DETAIL by others lu r p Supply Loop Water In Water Out T Balancing Valve Field installed and calibrated accessory Accessory stainless steel braid hose with integral J swivel Low Pressure Drop Water Control Valve optional or field installed accessory Water Out Water In Ball Valve Accessory with optional integral P T plug typical for supply and return piping Fig 4 Typical Installation 50RHC RHR RHS Units WATER CONNECTIONS ELECTRICAL KNOCKOUTS in DISCHARGE CONNECTION RETURN CONNECTION OVERALL CABINET 1 J K L Duct Flange Inst
73. itches offers the following options for D Control configuration Performance Monitor PM Set switch 1 to enable or dis able performance monitor To enable the PM set the switch to ON To disable the PM set the switch to OFF Compressor Relay Staging Operation Switch 2 will en able or disable compressor relay staging operation The com pressor relay can be set to turn on with stage 1 or stage 2 call from the thermostat This setting is used with dual stage units units with 2 compressors and 2 D controls or in master slave applications In master slave applications each compressor and fan will stage according to its switch 2 setting If switch is set to stage 2 the compressor will have a 3 second delay before ener gizing during stage 2 demand NOTE If DIP switch is set for stage 2 the alarm relay will not cycle during Test mode Heating Cooling Thermostat Type Switch 3 provides selec tion of thermostat type Heat pump or heat cool thermostats can be selected Select OFF for heat cool thermostats When in heat cool mode Y1 is used for cooling stage 1 Y2 1s used for cooling stage 2 W1 is used for heating stage 1 and O W2 is used for heating stage 2 Select ON for heat pump applications In heat pump mode Y 1 used is for compressor stage 1 Y2 is used for compressor stage 2 W1 is used for heating stage 3 or emergency heat and O W2 is used for RV heating or cooling depending upon switch 4 setting O B Thermostat
74. llow FAULT LED Fault LED light is red The fault LED will al ways flash a code representing the last fault in memory If there 15 no fault in memory the fault LED will flash code 1 on the and appear as 1 fast flash alternating with a 10 second pause See Table 29 SERVICE Perform the procedures outlined below periodically as indicated IMPORTANT When a compressor is removed from this unit system refrigerant circuit oil will remain in the com pressor To avoid leakage of compressor oil the refrigerant lines of the compressor must be sealed after it is removed IMPORTANT All refrigerant discharged from this unit must be recovered without exception Technicians must fol low industry accepted guidelines and all local state and fed eral statutes for the recovery and disposal of refrigerants IMPORTANT To avoid the release of refrigerant into the atmosphere the refrigerant circuit of this unit must only be serviced by technicians which meet local state and federal proficiency requirements IMPORTANT To prevent injury or death due to electrical shock or contact with moving parts open unit disconnect switch before servicing unit Filters Filters must be clean for maximum performance Inspect filters every month under normal operating conditions replace when necessary IMPORTANT Units should never be operated with out a filter Water Coil Keep all air out of the water coil Check open loop systems
75. low speed remove BLU wire from BR NO and replace with BLK or RED wire respectively Tape off unused terminal Both DIP switches need to be in the ON position supply voltage Fig 19 Typical Aquazone Complete C Control Wiring 19 YEL BLU RED tion instructions for wiring to the unit Thermostat wiring must be Class 1 and voltage rating equal to or greater than unit supply voltage Typical Hear T Mi PUMP T STAT SEE 5 GRY Y OT compressor o gp cou 2 2 DELUXE D T R OL L MICROPROCESSOR GRY COMMON e CONTROL LOGIC em i SEE NOTE 6 ron ene to DRY CONTACT FOR ALARM ee oy NER Nc pis COMPONENT LOCATION raum ar TUBE WD TT USE COPPER nTr p E T CONDUCTORS ONLY T2 TI _ alay jum Fre p B TEST SEE NOTE 3 GROUND is BRI gins Trans 1 pex Ve L5 L2 LI O es aua REE YALE sse
76. n using antifreeze in colder earth loop applications See Fig 25 AIR COIL FREEZE PROTECTION The air coil freeze protection jumper JW2 FP2 is factory set for 30 F and should not need adjusting ACCESSORY CONNECTIONS Terminal A on the control Is provided to control accessory devices such as water valves electronic air cleaners humidifiers etc This signal operates with the compressor terminal See Fig 26 Refer to the specific unit wiring schematic for details NOTE The A terminal should only be used with 24 volt signals not line voltage signals WATER SOLENOID VALVES Water solenoid valves may be used on primary secondary pump and ground water installa tions A typical well water control valve wiring which can limit waste water in a lockout condition 15 shown in Fig 26 A slow closing valve may be required to prevent water hammer When using a slow closing valve consider special wiring con ditions The valve takes approximately 60 seconds to open very little water will flow before 45 seconds and it activates the compressor only after the valve is completely opened by closing its end switch When wired as shown the valve will have the following operating characteristics 1 Remain open during a lockout 2 Draw approximately 25 to 35 VA through the Y signal of the thermostat IMPORTANT Connecting a water solenoid valve can overheat the anticipators of electromechanical thermo stats Only use relay b
77. n Enable and compressor relays are turned off immedi ately when the Cooling Stage 1 demand is removed The con trol reverts to Standby mode The RV relay remains on until there 15 a heating demand If there 15 master slave or dual compressor application all compressor relays and related func tions will track with their associated DIP switch 2 on S1 COOLING STAGE 2 In Cooling Stage 2 mode the Fan Enable compressor and RV relays remain on The Fan Speed relay 15 turned on immediately and turned off immediately once the Cooling Stage 2 demand is removed The control re verts to Cooling Stage 1 mode If there is a master slave or dual compressor application all compressor relays and related func tions will track with their associated DIP switch 2 on S1 NIGHT LOW LIMIT NLL STAGED HEATING In NLL staged Heating mode the override OVR input becomes active and is recognized as a call for heating and the control will immediately go into a Heating Stage 1 mode With an ad ditional 30 minutes of NLL demand the control will go into Heating Stage 2 mode With another additional 30 minutes of NLL demand the control will go into Heating Stage 3 mode Units with HWR Option FAN ONLY A G call from the thermostat to the G terminal of the Deluxe D control board will bring the unit on in fan only mode COOLING STAGE 1 simultaneous call from Y1 and O to the G Y1 O W2 terminals ofthe Deluxe D control
78. n the terminals are closed If the terminals are open the compressor is not used and the control goes into emergency heat mode DIP SWITCH BLOCK 2 S2 This set of DIP switches is used to configure accessory relay options See Fig 20 Switches 1 to 3 These DIP switches provide selection of Accessory 1 relay options See Table 14 for DIP switch combinations Switches 4 to 6 These DIP switches provide selection of Accessory 2 relay options See Table 15 for DIP switch combinations Table 14 DIP Switch Block S2 Accessory 1 Relay Options ACCESSORY 1 DIP SWITCH POSITION RELAY OPTIONS 1 2 3 Cycle with Fan On Digital NSB On Water Valve Slow Opening On OAD Off LEGEND NSB Night Setback OAD Outside Air Damper NOTE All other DIP switch combinations are invalid Table 15 DIP Switch Block S2 Accessory 2 Relay Options ACCESSORY 2 DIP SWITCH POSITION RELAY OPTIONS 5 6 Cycle with Fan On Digital NSB On Water Valve Slow Opening On OAD Off LEGEND NSB Night Setback OAD Outside Air Damper NOTE All other switch combinations are invalid Auto Dehumidification Mode or High Fan Mode Switch 7 provides selection of auto dehumidification fan mode or high fan mode In auto dehumidification fan mode the fan speed relay will remain off during cooling stage 2 if terminal H is active In high fan mode the fan enable and fan speed relays will turn on when
79. nal damage to piping nsulation may be required on piping to avoid condensa tion in the case where fluid in loop piping operates at temperatures below dew point of adjacent air Piping systems that contain steel pipes or fittings may be subject to galvanic corrosion Dielectric fittings may be used to isolate the steel parts of the system to avoid galvanic corrosion WATER LOOP APPLICATIONS Water loop applications usually include a number of units plumbed to a common pip ing system Maintenance to any of these units can introduce air into the piping system Therefore air elimination equipment comprises a major portion of the mechanical room plumbing The flow rate is usually set between 2 25 and 3 gpm per ton of cooling capacity For proper maintenance and servicing pressure temperature P T ports are necessary for temperature and flow verification In addition to complying with any applicable codes consid er the following for system piping Piping systems using water temperatures below 50 F require in closed cell insulation on all piping surfaces to eliminate condensation Avoid all plastic to metal threaded fittings due to the potential to leak Use a flange fitted substitute Teflon tape thread sealant is recommended to minimize internal fouling of the heat exchanger Use backup wrench Do not overtighten connections Route piping to avoid service access areas to unit Flush the piping system prior to
80. ol board standoffs switch RED and ORG leads at L1 and insulate RED lead and screws to control box Ground available from top two 4 FP1 thermistor provides freeze protection for water When using anti standoffs as shown freeze solutions cut JW3 jumper 8 Blower motor is factory wired for medium and high speeds 5 Typical Aquazone thermostat wiring shown Refer to thermostat installa For any other combination of speeds attach the lower speed wire to fan speed relay N O wire Fig 20 Typical Aquazone Deluxe D Control Wiring 20 COMPONENT LOCATION SEE NOTE 9 YEL BLU P328 9 1 E o 4999 63 gt jo lt 11 j oureur f MTR FOR S75V_ BLU NOTE i2 i R i ALT MTR BOX FOR 380V amp 60V __ POWER SUPPLY co E SEE NOTE 2 SEE NOTE 5 TRANS Lo RY CAP TUBE Tw REFER TO DATA PLATE ur USE COPPER CONDUCTORS ONLY TRANSFORMER PRIMARY LEAD COLORS PRIMARY PRIMARY OPTIONAL INTERNAL
81. on noise and water leaks Flow Regulation Flow regulation can be accom plished by two methods Most water control valves have a flow adjustment built into the valve By measuring the pressure drop through the unit heat exchanger the flow rate can be deter mined See Tables 22 24 Adjust the water control valve until the flow of 1 5 to 2 gpm 15 achieved Since the pressure con stantly varies two pressure gages may be needed in some applications An alternative method is to install a flow control device These devices are typically an orifice of plastic material de signed to allow a specified flow rate that are mounted on the outlet of the water control valve Occasionally these valves produce a velocity noise that can be reduced by applying some back pressure To accomplish this slightly close the leaving isolation valve of the well water setup A WARNING To avoid possible injury or death due to electrical shock open the power supply disconnect switch and secure it in an open position before flushing system Flushing Once the piping is complete units require final purging and loop charging A flush cart pump of at least 1 5 hp 15 needed to achieve adequate flow velocity in the loop to purge air and dirt particles from the loop Flush the loop in both directions with a high volume of water at a high velocity Fol low the steps below to properly flush the loop 1 Verify power is off 2 Fill loop with water from h
82. ondensate Condensate 3 4 Right Return 3 4 FPT Left Return Front Back Back Front R R S Right Return Left Return Front View Air Coil Opening Air Coil Opening Right Side View Left Side View Fig 8 50RDS Dimensional Data 13 Supply Air Building Flexible Loop Connection Water Out 0 Water_ In 1 Balancing Valve field installed Field supplied and calibrated stainless steel accessory braid hose with integral Low Pressure J swivel Drop Water Power Control Valve o optional Thermostat 7 field installed Wiring accessory Ball Valve with optional integral P T plug typical for supply and return piping NOTE Ball valve with integral pressure temperature plug recommended Fig 9 Typical Vertical Installation 50RVC RVR RVS Units Compressor Access Panel Flexible Building Connection Loop Water Water Out In j 16 0 Balancing Valve field installed and calibrated Field supplied accessory stainless steel fo braid hose Low Pressure with integral Drop Water CONS J swivel Control Valve optional Power field installed AT accessory olo Thermostat i irin 5 s eut Ball Valve with optional integral P T plug E ud nme Flexible 1 Connection Supply Air
83. ooling per Table 21 Replace Reduced water flow in Check pump operation or water valve operation setting heating Plugged strainer or filter Clean or replace Check water flow adjust to proper flow rate Water temperature out of Bring water temperature within design parameters range X Reduced airflow in cooling Check for dirty air filter and clean or replace Check fan motor operation and airflow restrictions External static too high Check blower Tables 8 13 W Too much cold vent air Bring entering air temperature within design parameters Check for refrigerant leaks Toohignairtow Check blower Tables 8 13 X Poorperormane See insufficient Capacity gt rmehghailow Checkblower Tables 8 13 Recheck loads and sizing check sensible cooling load and heat pump capacity x x x E gt x gt gt E Copyright 2007 Carrier Corporation Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Book 1 4 Tab 5a 5a Catalog No 04 53500007 01 Printed in U S A Form 50R 5SI Pg 42 6 07 Replaces 50R 4SI 50RHC RVC RHR RHS RVR RVS RDS START UP CHECKLIST CUSTOMER JOB NAME MODEL NO SERIAL NO DATE PRE START UP DOES THE UNIT VOLTAGE CORRESPOND WITH THE SUPPLY VOLTAGE AVAILABLE Y N HAVE THE POWER AND CONTROL WIRING CONNECTIONS BEEN MAD
84. or Amps 1 HACR circuit breaker in U S A only RLA Rated Load Amps 2 All fuses Class RK 5 24 Table 6 50RHR RVR Electrical Data 50RHR RVR VOLTS PHASE VOLTAGE MOTOR TNR m MAX UNITS 60 Hz MIN MAX BA AMP FUSE HACR mem 15 15 m 15 2651 23922 188 42 50o 15 ii 15 2651 23922 42 222 51 15 2082301 197254 59 290 100 69 84 15 15 m 2082301 197254 79 483 110 90 o 15 265 1 239202 71 410 97 15 20 na 2651 23922 470 158 99 120 20 208 303 197254 s500 130 73 88 15 15 2082301 197254 112 190 131 159 25 o 20 2082303 197254 500 190 99 15 15 30 636 30 20 460 3 41456 41 170 58 68 15 2082301 197254 162 960 192 232 35 042 25 4603 41456 4 400 170 60 71 15 15 40 0486 30 4603 41456 57 420 186 75 15 15 60 35 4603 41456 74 596 25 99 8 15 5753 518633 59 494 220 81 15 LEGEND FLA Full Load Amps HACR Heating Air Conditioning and Refrigeration LRA Locked Rotor Amps RLA Rated Load Amps Size 006 is available in 50RHR units only 25 50RDS Table 7 50RDS RHS RVS Electrical Data RHS RVS COMPRESSOR UNITS WITH HWR MAX REHEAT TOTAL MIN MAX
85. ose through flush cart before using flush cart pump to ensure an even fill Do not allow the water level in the flush cart tank to drop below the pump inlet line to prevent air from filling the line 3 Maintain a fluid level in the tank above the return tee to avoid air entering back into the fluid 4 Shutting off the return valve that connects into the flush cart reservoir will allow 50 psi surges to help purge air pockets This maintains the pump at 50 psi 5 To purge keep the pump at 50 psi until maximum pump ing pressure is reached 6 Open the return valve to send a pressure surge through the loop to purge any air pockets in the piping system 7 A noticeable drop in fluid level will be seen in the flush cart tank This is the only indication of air in the loop NOTE If air is purged from the system while using a 10 in PVC flush tank the level drop will only be 1 to 2 in since liquids are incompressible If the level drops more than this flushing should continue since air is still being compressed in the loop If level is less than 1 to 2 in reverse the flow 8 Repeat this procedure until all air is purged 9 Restore power Antifreeze may be added before during or after the flushing process However depending on when it is added in the process it can be wasted Refer to the Antifreeze section for more detail Loop static pressure will fluctuate with the seasons Pres sures will be higher in the winter months t
86. osition Slowly reduce the thermostat position until the compres sor activates 2 Check for cool air delivery at unit grille a few minutes after the unit has begun to operate 3 Verify that the compressor is on and that the water flow rate 15 correct by measuring pressure drop through the heat exchanger using P T plugs See Table 20 Check the elevation and cleanliness of the condensate lines any dripping could be a sign of a blocked line Be sure the condensate trap includes a water seal 4 Check the temperature of both supply and discharge wa ter Compare to Table 21 If temperature is within range proceed If temperature 15 outside the range check the cooling refrigerant pressures in Table 21 5 Check air temperature drop across the coil when com pressor is operating Air temperature drop should be between 15 and 25 F Table 18 Operating Limits 50RHC RVC Units 50RHC RVC AIR LIMITS Min Ambient Air db 45F Rated Ambient Air db 68 F Max Ambient Air db 85F Min Entering Air db wb 50F Rated Entering Air db wb 68 F Max Entering Air db wb 80F WATER LIMITS Min Entering Water 50F Normal Entering Water 60 70 F Max Entering Water 90 F Normal Water Flow LEGEND db Dry Bulb wb Wet Bulb Table 19 Operating Limits 50RHR RHS RVR RVS RDS Units AIR LIMITS HEATING F Min Ambient Air 45 Rated Ambient Air 70 Max Ambient Air 85 Min Entering Air 40 Rate
87. ouling or pitting of tubes Condenser tubes should therefore be cleaned at least once a year or more often if the water is contaminated Proper water treatment can minimize tube fouling and pitting If such conditions are anticipated water treatment analysis is recommended Refer to the Carrier System Design Manual Part 5 for general water conditioning information A CAUTION Follow all safety codes Wear safety glasses and rubber gloves when using inhibited hydrochloric acid solution Observe and follow acid manufacturer s instructions Clean condensers with an inhibited hydrochloric acid solution The acid can stain hands and clothing damage concrete and without inhibitor damage steel Cover sur roundings to guard against splashing Vapors from vent pipe are not harmful but take care to prevent liquid from being carried over by the gases Warm solution acts faster but cold solution is just as effec tive if applied for a longer period GRAVITY FLOW METHOD Do not add solution faster than vent can exhaust the generated gases When condenser is full allow solution to remain overnight then drain condenser and flush with clean water Follow acid manufacturer s instructions See Fig 29 FORCED CIRCULATION METHOD Fully open vent pipe when filling condenser The vent may be closed when condenser is full and pump is operating See Fig 30 Regulate flow to condenser with a supply line valve If pump is a nonove
88. pical Aquazone Control Board Jumper Locations Connector Aquazone C See Low Voltage NOTE Low voltage connector may be removed for easy installation Fig 24 Low Voltage Field Wiring TERMINAL STRIP P2 TYPICAL WATER VALVE Fig 26 Typical D Control Accessory Wiring 23 Table 5 50RHC RVC Electrical Data 50RHC RVC VOLTS PHASE VOLTAGE MOTOR n om MAX UNITS 60 Hz MIN MAX FLA FLA AMP FUSE HACR 15 15 005 15 15 oid 15 26514 23922 42 222 49 15 018 2082304 197254 490 100 96 17 20 2651 X 23920 81 440 08 89 110 15 208 3031 197254 150 13 138 20 osi 20 2082303 197254 67 50 150 82 99 15 15 25 030 25 2082303 197254 69 550 99 17 15 15 35 036 30 2082303 197254 700 180 114 138 20 15 20823041 197254 162 300 192 232 35 041 25 4603 41456 43 400 170 73 15 5753 _ 518 633 4 340 140 57 15 40 642 25 15 15 40 048 30 46038 41456 57 420 180 75 89 15 15 60 6 35 460 83 4456 74 596 250 29 118 15 15 LEGEND Size 006 available in 50RHC unit only FLA Full Load Amps TSize 041 available in 50RVC unit only HACR Heating Air Conditioning and Refrigeration NOTES LRA Locked Rot
89. ping system prior to the fluid re entering the loop field OPERATION Power Up Mode The unit will not operate until all the inputs terminals and safety controls are checked for normal operation NOTE The compressor will have a 5 minute anti short cycle upon power up Units with Aquazone Complete C Control STANDBY Y and W terminals are not active in standby mode however the O and G terminals may be active depend ing on the application The compressor will be off COOLING Y and O terminals are active in Cooling mode After power up the first call to the compressor will initiate a 5 to 80 second random start delay and a 5 minute anti short cycle protection time delay After both delays are complete the compressor is energized NOTE On all subsequent compressor calls the random start delay is omitted HEATING STAGE Terminal Y is active in heating stage 1 After power up the first call to the compressor will initiate a 5 to 80 second random start delay and a 5 minute anti short cycle protection time delay After both delays are complete the compressor is energized NOTE On all subsequent compressor calls the random start delay is omitted 36 HEATING STAGE 2 To enter Stage 2 mode terminal W 15 active Y is already active Also G terminal must ac tive or the W terminal is disregarded The compressor relay will remain on and EHI is immediately turned on EH2 will turn on after 10 minut
90. r PEN ee Fig 12 Conversion Right Return Side Discharge to Back Discharge Step 4 Mounting the Unit HORIZONTAL UNITS SORHC RHR RHS Horizontal units should be mounted using the factory installed hangers Proper attachment of hanging rods to building structure is critical for safety See Fig 4 and 13 Rod attachments must be able to sup port the weight of the unit See Tables 1 3 for unit operating weights VERTICAL UNITS SORVC RVR RVS RDS Vertical and downflow units are available in left or right return air configu rations See Fig 6 8 Mount the unit except S0RDS on a Compressor Section Air Handler Section DIMENSIONS 50RHC UNITS 006 012 21 1 018 030 22 2 036 042 22 2 048 060 26 2 DIMENSIONS AT 006 024 030 036 042 048 EK 060 Fig 13 Horizontal Hanger Bracket Factory Installed vibration absorption pad slightly larger than the entire base to minimize vibration transmission It is not necessary to mount the unit on the floor See Fig 14 NOTE Some codes require the use of a secondary drain pan under vertical units Check local codes for more information Step 5 Duct System Size the duct system to han dle the design airflow quietly NOTE Depending on the unit the fan wheel may have a ship ping support installed at the factory This must be removed before operating unit SOUND ATTENUATION To elimin
91. r filter is clean and in position 2 Fuses breakers and wire are correct size 14 Service access panels are in place 3 Low voltage wiring is complete 4 Pini as 15 Return air temperature 1s between 40 to 80 F heating and Piping and system flushing is complete 50 to 110 F cooling 5 Airis purged from closed loop system l6 Aircoilisclean 6 System 15 balanced as required Monitor if necessary 17 Control field selected settings are correct 26 AIR To obtain maximum performance clean the air coil before starting the unit A ten percent solution of dish washer detergent and water is recommended for both sides of the coil Rinse thoroughly with water PSC Permanent Split Capacitor Blower Speed Selection water source heat pumps are factory set to deliver rated airflow at nominal static 0 15 1n wg on medium speed Where higher static is needed high speed can be utilized 0 4 to 0 5 in wg Low speed will deliver approximately 85 of rated airflow 0 10 in wg The PSC blower fan speed can be changed on all units by swapping wires connected to the relay contacts that control the fan See Fig 27 FOR 50RHR RVR RHS RVS AND RDS UNITS On the control the black wire is connected to High blue wire is connected to Medium and red wire 15 connected to Low See Fig 19 22 NOTE Available airflows for all units are shown in Tables 8 13 FOR 50RHC RVC UNITS The PSC blower fan speed can
92. r temperature 2 water temperature and 3 ambient temperature Whenever any of these factors are at a minimum or maximum level the other two factors must be at a normal level to ensure proper unit operation See Tables 18 and 19 Scroll Compressor Rotation It is important to be certain compressor is rotating in the proper direction To determine whether or not compressor is rotating in the prop er direction 1 Connect service gages to suction and discharge pressure fittings 2 Energize the compressor 3 The suction pressure should drop and the discharge pressure should rise as is normal on any start up If the suction pressure does not drop and the discharge pressure does not rise to normal levels 1 Turn off power to the unit Install disconnect tag 2 Reverse any two ofthe unit power leads 3 Reapply power to the unit and verify pressures are correct The suction and discharge pressure levels should now move to their normal start up levels When the compressor is rotating in the wrong direction the unit makes more noise and does not provide cooling After a few minutes of reverse operation the scroll com pressor internal overload protection will open thus activating the unit lockout This requires a manual reset To reset turn the thermostat on and then off NOTE There is a 5 minute time delay before the compressor will start 33 Unit Start Up Cooling Mode 1 Adjust the unit thermostat to the warmest p
93. rd Filter Bracket Access Panels ASP Alternate Service Panel BSP Blower Service Panel CAP Control Access Panel CSP Compressor Service Panel RIGHT RETURN LEFT RETURN m Air Coil B M T K 4 L aL uuu 3 Service 7 Access 3 A Z Left Return CSP ASP right CAP Opposite 1 N Air Coil Side Air Coil Side J 1 l eo R Configuration Top View Right Return L Configuration Top View Left Return Front Water i Connections 3 Service Isometric P O P Access View 1 000 R R d 1 ES Jet Air Coil M Air Coil 8 8 Q Q C 8 Condensate Power Supply 3 4 3 4 HV Knockout Ve Power for CAP o Condensate Pump of 1 2 Knockout ASP Low Volt d H lo Front Back Back Front CSP acl G Orn R Configuration Right Return Right View L Configuration Left Return Left View Front View Air Coil Opening Air Coil Opening AIRFLOW CONFIGURATION Code Discharge L Top R Top Fig 6 50RVR Dimensional Data 11 WATER CONNECTIONS ELECTRICAL KNOCKOUTS in DISCHARGE CONNECTION RETURN CONNECTION OVERALL CABINET CAES Duct Flange Installed 0 10 in Using Air Coil Op
94. rloading type the valve may be fully closed while pump is running For average scale deposit allow solution to remain in con denser overnight For heavy scale deposit allow 24 hours Drain condenser and flush with clean water Follow acid manu facturer s instructions 39 FILL CONDENSER WITH CLEANING SOLUTION DO NOT ADD SOLUTION MORE RAPIDLY THAN VENT CAN EXHAUST GASES CAUSED BY CHEMICAL ACTION 3 TO 4 CONDENSER Fig 29 Gravity Flow Method GAS VENT gt GLOBE VALVES PUMP PRIMING CONN SUCTION 74 M SUPPLY PUMP SS SUPPORT 1 PIPE Pa lt CONDENSER Z TANK REMOVE WATER REGULATING VALVE FINE MESH SCREEN Fig 30 Forced Circulation Method Checking System Charge Units are shipped with full operating charge If recharging is necessary 1 Insert thermometer bulb in insulating rubber sleeve on liquid line near filter drier Use a digital thermometer for all temperature measurements DO NOT use a mercury or dial type thermometer 2 Connect pressure gage to discharge line near compressor 3 After unit conditions have stabilized read head pressure on discharge line gage NOTE Operate unit a minimum of 15 minutes before checking charge 4 From standard field supplied Pressure Temperature chart for R 22 find equivalent saturated condensing temperature 5 Read liquid line temperature on thermometer then subtract from saturated
95. rotection for water When using antifreeze solutions cut JW3 jumper 5 Typical thermostat wiring shown Refer to thermostat installation instructions for wiring to the unit Thermostat wiring must be Class 1 and volt age rating equal to or greater than unit supply voltage 6 Factory cut JW1 jumper Dry contact will be available between AL1 and AL2 7 Transformer secondary ground via Deluxe D board standoffs and screws to control box Ground available from top two standoffs as shown 8 Blower motor is factory wired for medium and high speeds For any other combination of speeds at the motor attach the BLK wire to the higher of the two desired speed taps and the BLU wire to the lower of the two desired speed taps 9 Blower motor is factory wired for high and low speeds No other combination is available 10 Optional LON wires Only connect if LON connection is desired at the wall sensor Fig 22 Typical Aquazone Deluxe D and LON Controller Wiring 22 Circ Brkr Contactor CC Unit Power Supply See electrical table for wire and breaker size Fig 23 50RHC RVC RHR RVR RHS RVS RDS Typical Single Phase Line Voltage Power Connection Capacitor Clip JW2 ini FP2 jumper for gums ater for freeze JW3 4 FP Low Temp protect JW2 gt FP2 Low Temp Y Y Transformer Clip for dry contact AQUAZONE CONTROL C Control Shown Fig 25 Ty
96. rption Pad ERN Fig 14 50RVC RVR RVS Units Mounted With Vibration Absorption Pad 15 Step 6 Condensate Drain HORIZONTAL UNITS SORHC RHR RHS Slope the unit toward the drain at a in drop at drain end See Fig 15 If it is not possible to meet the required pitch install a conden sate pump at the unit to pump condensate to building drain Horizontal units are not internally trapped therefore an ex ternal trap is necessary Install each unit with its own individual trap and means to flush or blowout the condensate drain line Do not install units with a common trap or vent For typical condensate connections see Fig 16 NOTE Never use a pipe size smaller than the connection VERTICAL UNITS SORVC RVR RVS Each unit uses a condensate hose inside all cabinets as a trapping loop therefore an external trap is not necessary See Fig 17 Each unit must be installed with its own individual vent and means to flush or blowout the condensate drain line Do not in stall units with a common trap or vent Drain Connection Fig 15 Horizontal Unit Pitch MINIMUM PITCH ONE IN PER 10 FT OF LINE SEE NOTE DRAIN PLUG NOTE Trap should be deep enough to offset maximum unit static difference A 4 in trap is recommended Fig 16 Trap Condensate Drain 3 4 Copper FPT PVC 3 4 PVC Vent 1 4 per foot slope to drain 1 2 _ Alternate 79
97. rvice agency or your distrib utor or branch for information or assistance The qualified in staller or agency must use factory authorized kits or accessories when modifying this product Refer to the individual instruc tions packaged with the kits or accessories when installing Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 04 53500007 01 Book 1 4 Tab 5a 5a Printed in U S A Form 50R 5SI Pg 1 6 07 Replaces 50R 4SI Follow all safety codes Wear safety glasses and work gloves Use quenching cloth for brazing operations Have fire extinguisher available Read these instructions thoroughly and follow all warnings or cautions attached to the unit Consult local building codes and the National Electrical Code NEC for special installation requirements Understand the signal words DANGER WARNING and CAUTION DANGER identifies the most serious hazards which will result in severe personal injury or death WARN ING signifies hazards that could result in personal injury or death CAUTION 15 used to identify unsafe practices which would result in minor personal injury or product and property damage Recognize safety information This is the safety alert symbol A When you see this symbol on the unit and in instructions or manuals be alert to the potential for personal injury A WARNING Electrical shock can
98. s D Control DIP Switches Units with Modulating Hot Water Reheat Option D Control Relay Configurations Water Valve Slow Opening Outside Air Damper OAD Operating Limits Scroll Compressor Rotation Unit Start Up Cooling Mode Unit Start Up Heating Mode Flow Regulation Page Flushing a wer thee ioe ed 34 35 Cooling Tower Boiler Systems 36 Ground Coupled Closed Loop and Plateframe Heat Exchanger Well Systems 36 OPERATION 36 37 Power Up Mode 36 Units with Aquazone Complete C Control 36 Units with Aquazone Deluxe D Control 36 Units with HWR 37 SYSTEM TEST uuu Ee 37 38 Test 37 Retry 37 Aquazone Deluxe D Control LED Indicators 38 SERVICE 38 40 gc EETTHP 38 Water Coll uu usss eere ERR dE paka 38 Condensate Drain 5 38 Refrigerant System
99. t there 15 still a call for dehumidifi cation the unit will continue to operate in Reheat Mode SYSTEM TEST System testing provides the ability to check the control operation The control enters a 20 minute Test mode by mo mentarily shorting the test pins All time delays are increased 15 times See Fig 19 22 Test Mode To enter Test mode on Complete C or Deluxe D controls cycle the power 3 times within 60 seconds The LED light emitting diode will flash a code representing the last fault when entering the Test mode The alarm relay will also power on and off during Test mode See Tables 27 and 28 To exit Test mode short the terminals for 3 seconds or cycle the power 3 times within 60 seconds NOTE Deluxe D Control has a flashing code and alarm relay cycling code that will both have the same numerical label For example flashing code 1 will have an alarm relay cycling code 1 Code 1 indicates the control has not faulted since the last power off to power on sequence Retry Mode In Retry mode the status LED will start to flash slowly to signal that the control is trying to recover from an input fault The control will stage off the outputs and try to again satisfy the thermostat used to terminal Y Once the ther mostat input calls are satisfied the control will continue normal operation 37 NOTE If 3 consecutive faults occur without satisfying the thermostat input call to terminal Y the control will go into locko
100. tage imbalance Voltage Imbalance 100 2X voltage deviation from average voltage average voltage i e od Example Supply voltage is 460 3 60 AB 452 volts BC 464 volts AC 455 volts 464 Average Voltage Armi _ 1371 3 457 Determine maximum deviation from average voltage AB 457 452 5 v BC 464 457 7 v AC 457 455 2 v Maximum deviation is 7 v Determine percent voltage imbalance Voltage Imbalance 100 x de 1 53 This amount of phase imbalance is satisfactory as it is below the maximum allowable 2 Operation on improper line voltage or excessive phase imbalance constitutes abuse and may cause damage to electri cal components NOTE If more than 2 voltage imbalance is present contact your local electric utility 208 VOLT OPERATION All 208 230 volt units are factory wired for 208 volts The transformers may be switched to 230 volt operation by switching the red 208 volt wire with the orange 230 volt wire at the L1 terminal Step 9 Field Control Wiring THERMOSTAT CONNECTIONS The thermostat should be wired directly to the Aquazone control board See Fig 19 22 and 24 WATER FREEZE PROTECTION The Aquazone control allows the field selection of source fluid freeze protection points through jumpers The factory setting of jumper JW3 FP1 is set for water at 30 F In earth loop applications jumper JW3 should be clipped to change the setting to 10 F whe
101. te 0 5 ppm Cu Chlorine Chlorides 0 5 ppm CuNi Hydrogen Sulfidet None Allowable Brackish Use Cupronickel heat exchanger when concentrations of calcium or sodium chloride are greater than 125 ppm are present Seawater is approximately 25 000 ppm If the concentration of these corrosives exceeds the maximum allowable level then the potential for serious corrosion problems exists TSulfides in the water quickly oxidize when exposed to air requiring that no agitation occur as the sample is taken Unless tested immediately at the site the sample will require stabilization with a few drops of one Molar zinc acetate solution allowing accurate sulfide determination up to 24 hours after sampling A low pH and high alkalinity cause sys tem problems even when both values are within ranges shown The term pH refers to the acidity basicity or neutrality of the water supply Below 7 0 the water is considered to be acidic Above 7 0 water is considered to be basic Neutral water contains a pH of 7 0 NOTE To convert ppm to grains per gallon divide by 17 Hardness in mg l is equivalent to ppm 17 Step 8 Field Power Supply Wiring A WARNING To avoid possible injury or death due to electrical shock open the power supply disconnect switch and secure it in an open position during installation A CAUTION Use only copper conductors for field installed electrical wiring Unit terminals are not designed to accept other types of con
102. tic Operating Limits ENVIRONMENT This equipment is designed for indoor installation ONLY Extreme variations in temperature hu midity and corrosive water or air will adversely affect the unit performance reliability and service life POWER SUPPLY A voltage variation of nameplate utilization voltage is acceptable UNIT STARTING CONDITIONS Depending on the model units start and operate in an ambient temperature of 45 F with entering air temperature at 40 F or 50 F entering water temperature at 20 F or 50 F and with both air and water at the flow rates used NOTE These operating limits are not normal or continuous operating conditions Assume that such a start up 1s for the purpose of bringing the building space up to occupancy temperature See Tables 18 and 19 for operating limits A WARNING When the disconnect switch is closed high voltage is 10 of present in some areas of the electrical panel Exercise caution when working with the energized equipment Failure to heed this warning could lead to personal injury 1 Restore power to system 2 Turn thermostat fan position to ON Blower should start 3 Balance airflow at registers 4 Adjust all valves to the full open position and turn on the line power to all heat pump units 5 Operate unit in the cooling cycle Refer to Tables 18 and 19 for unit operating limits NOTE Three factors determine the operating limits of a unit 1 entering ai
103. to maximize vibra tion and sound alternation A CAUTION Failure to remove shipping brackets from spring mounted compressors will cause excessive noise and could cause component failure due to added vibration 8 Remove any blower support cardboard from inlet of the blower 9 Locate and verify any accessory kit located in compressor section 10 Remove any access panel screws that may be difficult to remove once unit is installed Table 1 Physical Data Aquazone 50RHC RVC006 060 Units 0005 009 02 j 04 030 Reciprocating x C u w gt Is 7 UNIT 50RHC RVC COMPRESSOR 1 each FACTORY REFRIGERANT CHARGE R 22 VERTICAL oz FACTORY REFRIGERANT CHARGE R 22 HORIZONTAL oz PSC FAN MOTOR AND BLOWER Fan Motor Type Speeds Fan Motor Std High Static Hp Blower Wheel Size D x W in Std High Static WATER CONNECTION SIZE FPT VERTICAL Air Coil Dimensions H x W in Total Face Area ft2 Tube Size in Fin Spacing FPI Number of Rows Filter Standard 1 in Throwaway Weight Ib Operating Packaged HORIZONTAL Air Coil Dimensions H x W in Total Face Area ft2 Tube Size in Fin Spacing FPI Number of Rows Filter Standard 1 in Throwaway Weight Ib Operating Packaged UNIT 50RHC RVC COMPRESSOR 1 each FACTORY REFRIGERANT CHARGE R 22 VERTICAL oz FACTORY REFRIGERANT CHARGE R 22 HORIZONTAL oz PSC FAN MOTOR AND BLOWER Fan Motor Type Spee
104. ts can prevent proper start up and necessitate costly clean up operations Before installing any of the system components be sure to examine each pipe fitting and valve and remove any dirt or foreign material found in or on these components 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 units in an upright position Tilting units on their sides may cause equipment damage INSPECT UNIT To prepare the unit for installation com plete the procedures listed below 1 Compare the electrical data on the unit nameplate with ordering and shipping information to verify that the correct unit has been shipped 2 Verify that the unit is the correct model for the entering water temperature of the job 3 Do not remove the packaging until the unit is ready for installation 4 Verify that the refrigerant tubing is free of kinks or dents and that it does not touch other unit components 5 Inspect all electrical connections Be sure connections are clean and tight at the terminals 6 Loosen compressor bolts until the compressor rides freely on springs Remove shipping restraints 7 Remove the four in shipping bolts from compressor support plate two bolts on each side
105. ture Water 21 24 13 16 6 11 20 23 12 15 8 12 19 22 12 17 7 12 18 21 10 14 6 11 17 20 9 13 5 10 HEATING Air i i Water i Suction Discharge Sub Air prop IP Pressure Pressure heat F cooling Drop IP Temp DB psig psig F Dg Rise F 21 26 34 39 167 186 12 16 4 21 26 37 43 172 191 12 16 4 21 26 40 46 177 196 12 16 4 34 20 25 20 25 20 25 19 24 19 24 19 24 17 23 17 23 17 23 15 20 15 20 15 20 NOTES 1 180 210 185 215 190 220 10 17 10 17 10 17 50 60 53 62 55 65 1 7 6 8 4 1 4 8 5 6 1 3 4 4 2 1 10 8 11 9 1 6 7 8 1 1 5 1 5 9 0 9 6 4 01011 71 82 205 230 14 19 1 14 0 15 2 73 85 210 238 14 19 1 9 0 10 2 76 88 215 242 14 19 1 6 85 95 220 260 18 28 2 14 4 16 90 100 225 265 18 28 2 10 8 12 95 105 230 270 18 28 2 5 7 2 8 3 Based on nominal 400 per ton airflow 70 F EAT heating and 80 67 EAT cooling Cooling air and water numbers can vary greatly with changes in humidity Subcooling is based upon the head pressure at compressor service port Unit should not be operated in heating mode with an EWT of 110 AO Table 22 50RHR RVR Coaxial Table 24 50RHC RVC Coaxial Water Pressure Drop Water Pressure Drop m WATER TEMPERATURE F uum WATER TEMPERATURE F S0RHR RVR sor sor 70 90F 50RHC RVC 60
106. unit operation There are four operational inputs for single stage units and six operational inputs for dual stage units Fan Only Cooling Stage 1 Cooling Stage 2 Heating Stage 1 Heating Stage 2 Reheat Mode MODULATING HWR APPLICATION CONSIDER ATIONS Unlike most hot gas reheat options the mod ulating HWR option RVC RHS RVS RDS only will oper ate over a wide range of entering water temperatures EWTs Special flow regulation water regulating valve is not required for low EWT conditions However below 55 F supply air temperatures cannot be maintained at 72 F because the cooling capacity exceeds the reheat coil capac ity at low water temperatures Below 55 F essentially all water is diverted to the reheat coil no heat of rejection to the building loop Although the HWR option will work fine with low EWTs overcooling of the space may result with well water systems or on rare occasions with ground loop geothermal systems NOTE Extended range units are required for well water and ground loop systems Since dehumidification is generally only required in cooling most ground loop systems will not experience overcooling of the supply air temperature If overcooling of the space is a con cern e g computer room well water application auxiliary heating may be required to maintain space temperature when the unit is operating in the dehumidification mode Water source heat pumps with HWR should not be used as makeup air units
107. units For 420 3 50 operation switch VIO and BRN leads at L1 and insulate VIO lead Transformer is energy limiting or may have circuit breaker 4 FP1 thermistor provides freeze protection for water When using antifreeze solutions cut JW3 jumper 5 Typical thermostat wiring shown Refer to thermostat installation instructions for wiring to the unit Thermostat wiring must be Class 1 and volt age rating equal to or greater than unit supply voltage 6 Factory cut JW1 jumper Dry contact will be available between AL1 and AL2 7 Transformer secondary ground via Complete C board standoffs and screws to control box Ground available from top two standoffs as shown 8 Fan motors are factory wired for medium speed For high or low speed remove BLU wire from fan motor speed tap M and connect to H for high speed or L for low speed 9 For low speed remove BLK wire from BR 6 and replace with RED Connect BLK and BRN wires together 10 Optional LON wires Only connect if LON connection is desired at the wall sensor 11 For blower motors with leads For medium or low speed diconnect BLK wire from BR 6 Connect BLK and ORG PUR wire together Connect RED for low or BLU for medium to BR 6 12 Blower motor is factory wired to medium speed For low speed remove BLU wire from medium tap and connect to low speed tap For high Speed remove BLU wire from existing speed tap and remove BRN jumperwire from high speed tap Connect BLU wire to h
108. ut mode The last fault causing the lockout 15 stored in memory and can be viewed by entering Test mode Table 27 Complete C Control Current LED Status and Alarm Relay Operations LED STATUS DESCRIPTION OF OPERATION ALARM RELAY Normal Mode Open Cycle on Normal Mode with closed 5 sec 9 25 Complete C Control is Off non functional Open Slow Flash Fault Retry Open Fast Flash Closed Open Slow Flash Over Under Voltage Shutdown Closed after 15 minutes z Test Mode No fault in Test Mode HP Fault in N Test Mode LP Fault in Test Mode 1 Fault in Flashing Code 4 memory Test Mode FP2 Fault in Flashing Code 6 Test scm Fault in n Test Mode Over Under Flashing Code 7 shutdown in memory Flashing Code 8 Test Mode PM in memory i Test Mode FP1 FP2 Flashing Code 9 Swapped Fault in memory Cycling Code 1 Cycling Code 2 Cycling Code 3 Cycling Code 4 Cycling Code 5 Cycling Code 6 Cycling Code 7 Cycling Code 8 Cycling Code 9 LEGEND CO Condensate Overflow LED Light Emitting Diode FP Freeze Protection LP Low Pressure HP High Pressure PM Performance Monitor NOTES 1 Slow flash is 1 flash every 2 seconds 2 Fast flash is 2 flashes every 1 second 3 EXAMPLE Flashing Code 2 is represented by 2 fast flashes followed by a 10 second pause This sequence will repeat continually until the fault is cleared Table 28 Complete C
109. ver and reweigh in refrigerant charge Table 29 Aquazone Deluxe D Control Current LED Status and Alarm Relay Operations DESCRIPTION Normal Mode Normal Mode with PM Deluxe D Control is non functional Test Mode Night Setback STATUS LED TEST LED eto FAULT LED Red Flash Last Fault Code in Memory Open Flash Last Fault Code in Memory Flashing Code2 Flash Last Fault Code in Memory ALARM RELAY Cycle closed 5 sec open 25 sec Cycling Appropriate Code ESD Flashing Code 3 anc Flash Last Fault Code in Memory Invalid T stat Inputs No Fault in Memory HP Fault LP Fault Fault FP2 CO Fault Over Under Voltage HP Lockout LP Lockout FP1 Lockout FP2 Lockout CO Lockout LEGEND CO Condensate Overflow HP High Pressure ESD Emergency Shutdown LP Low Pressure FP Freeze Protection PM Performance Monitor Flashing Code4 Flash Last Fault Code in Memory Open Open Open Open Open Open Open closed after 15 minutes Closed Closed Closed Flashing Code 5 Closed Closed NOTES If there is no fault in memory the Fault LED will flash code 1 Codes will be displayed with a 10 second Fault LED pause Slow flash is 1 flash every 2 seconds Fast flash is 2 flashes every 1 second EXAMPLE Flashing Code 2 is represented by 2 fast flashes fol lowed by a 10 second pause This sequence will repeat continually until the fault is cleared
110. wer Service Panel 5 Optional 2 CAP Control Access Panel 2 Service Eroni Access CSP Compressor Service Panel Access Power Supply Left 3 4 Knockout Low Voltage 1 2 Knockout Discharge oF RIGHT RETURN Front Left IAT Discharge Back rere F Vi Condensate _ Back 38 4 ront View ondensate Discharge 3 4 FPT Discharge 8 3 BSP o D BSP Bic cls o gt Left Return Back Discharge Air Coil Side Right Return Back Discharge B M Por etm anger AIRFLOW CONFIGURATION Code Discharge S Right E Back 2 Fig 1 50RHC Dimensional Data in 19 1 34 1 EXE ES Ea Ea E M 2 1 0 8 8 9 6 7 5 2 ES 16 1 48 5 86 6 EXE ES Ea Ea E M 5 4 1 9 22 7 17 0 13 3 ES 41 0 Ea 2 7 in 20 1 43 1 17 1 15 3 2 4 1 El 12 1 9 1 6 1 2 6 13 3 9 9 4 1 1 3 23 0 15 0 1 1 cm 51 1 109 5 43 4 38 9 6 1 4 5 3 30 8 23 2 15 6 22 33 8 25 1 10 5 3 3 58 4 38 1 2 8 036 042 20 1 47 1 21 1 18 8 22 4 1 2 16 1 18 1 10 1 16 1 11 0 3 0 2 5 25 9 19 0 1 1 51 1 119 6 53 6 47 6 5 5 11 9 3 0 41 0 33 3 25 7 40 9 27 9 TF 65 8 48 3 28 9 4 16 1 13 1 10 1 16 1 13 7 35 9 14 9 14 41 0 33 3 25 7 is 41 0 34 8 103 91 2 2 8 in 24 1 54 1 21 1 19 4 5 9 4 16 1 13 1 10 1 18 1 13 7 4 1 13 35 9 19 0 11 61 2 137 4 53 6 492 14 9 11 38 41 0 33 3 25 7 46 0 34 8 10 3 3 2 91 2 48 3 2 8

Carrier 50RHC Heat Pump User Manual

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