Home

EMI S2HB User's Manual

1. ololjo olsleltalelal lelala Multi zone Heat Pump Condensing Units 27 www enviromaster com T2HB T3HB AND T4HB SPECIFICATIONS WLH T2HB T3HB or T4HB Top Discharge WLH T2HB T3HB OR TAHB SYSTEM PERFORMANCE DATA EE Outdoor Indoor Air Handler SEER SHR EER Btuh cop 13 77 T3HB9280 1 WLHO9 1 WLH12 38500 0 73 11 9 30000 1 WLH24 T3HB9240 1 WLHO9 1 WLH12 44500 13 11 7 35200 77 3 2 1 WLH24 Funes meae s oe mee 77 Circuit Designators 9 29000 Btuh 2 12000 8 18000 4 24000 Btuh ex 8400 consists of one 18000 Btuh compressor and one 24000 Btuh compressor Multi zone Heat Pump Condensing Units 28 www enviromaster com T2HB T3HB AND T4HB SPECIFICATIONS T2HB T3HB or T4HB Top Discharge CAH T2HB T3HB OR T4HB SYSTEM PERFORMANCE DATA Cooling Outdoor d Indoor Air Handler SHR EER lt KL Btuh HSPF e uem Eom ann 071 IE ac mez oam x 5 fos a Circuit Designators 9 9000 Btuh 2 12000 Btuh 8 18000 Btuh 4 24000 Btuh ex 8400 consists of one 18000 Btuh compressor and one 24000 Btuh compressor Sia JE UJ I Ww UJ e alaala eee ep
2. gt I Re S S EMI AMERICA SERIES MULTI ZONE HEAT PUMP CONDENSING UNITS HEAT PUMPS EMIS Nominal Circuit Capac Comfort Where It Counts 9 000 12 000 18 000 amp 24 000 Btun units S2HB Multi Zone T2HB T3HB amp T4HB Multi Zone Enviromaster International LLC AY 5780 Success Dr An ECR International Brand Rome NY 13440 An ISO 9001 2000 Certified Company M yz www enviromaster com P N 240006458 Rev B 10 08 EMI AMERICA SERIES MULTI ZONE HEAT PUMP CONDENSING UNITS INSTALLATION OPERATION AND MAINTENANCE MANUAL This manual is intended as an aid to qualified service personnel for proper installation operation and maintenance of these EMI America Series multi zone heat pump condensing units Read the instructions thoroughly and carefully before attempting installation or operation Failure to follow these instructions may result in improper installation operation service or maintenance possibly resulting in fire electrical shock property damage personal injury or death Shipping Damage MUST be Reported to the Carrier IMMEDIATELY Examine the carton for signs of damage if any is evident open packaging and check the unit for shipping damage SAFETY INSTRUCTIONS TO THE INSTALLER 1 Retain this manual and warranty for future reference 2 Before leaving the premises review this manual to be sure the unit has been
3. _ Some thermostats do not use C terminal Electric heat option R Connection for S1H Single Zone only Refer to the indoor unit for the proper low Volt interconnect wiring OPERATION AND MAINTENANCE The EMI America Series outdoor section is the compressor bearing unit of the system It operates at the command of the indoor section or room thermostat Therefore the operation will be described in the manual pertaining to the indoor section EMI units are designed and constructed for reliability and long life with minimal main tenance You can assure peak operating efficiency by regularly inspecting for free air passage into and through the coil If debris collect on the air coil it should be cleaned by back flushing with a spray of water or vacu uming TURN OFF POWER SUPPLY FIRST Outdoor units may be cleaned or waxed if desired Use a non abrasive car wax Panels should remain on the unit at all times Service should be performed by a QUALI FIED service agency only Multi zone Heat Pump Condensing Units SPECIFIC CHANGES All EMI products are subject to ongoing de velopment programs so design and specifi cations may change without notice Please consult the factory for more information GENERAL RECOMMENDATIONS Do not charge the straight cool units on cold days unless weighing in the charge The heat pump systems may be charged in heat cycle between 35 and 75 F These units use a hea
4. EMI S HIGH SEER PRODUCT LINE EVAPORATORS WLC WLH CAC CAH High Wall Evaporator Cassette Evaporator UNC UNH Universal Evaporator CONDENSERS S1C amp STH Single Zone Side Discharge S2C amp S2H T2C T3C amp DualZone 2 amp Side Discharge 23 amp 4Zoe Wi Top Discharge Multi zone Heat Pump Condensing Units 31 www enviromaster com Phone 1 800 228 9364 Fax 1 800 232 9364 was 4 Comfort Where It 5780 Success Drive Rome NY 13440
5. F Liquid Subcooling F 10 20 30 40 50 60 Outdoor Temp F RH 50 Outdoor Temp F RH 50 Multi zone Heat Pump Condensing Units www enviromaster com MULTI ZONE HEAT PUMP REFRIGERANT PIPING INSTALLATION FIELD CHARGING NOTE If operating superheat is more than 5 F above the chart value add refrigerant If below the chart value remove refrigerant If below the limit line remove refrigerant Example Using the 12 000 Btuh cooling chart 1 Suction pressure is 65 psi which equals 38 F on The R 22 Scale of the Low Side Gauge 2 Suction line temperature taken at the unit is 70 F 70 F minus 38 F equals 32 F superheat 3 Outdoor temperature is 90 F indoor temperature is 80 F 4 Intersection of the indoor temperature and outdoor temperature lines occur on the 12 F superheat line 5 Add charge to obtain 12 F superheat Instructions 1 Measure suction pressure and determine evaporator refrigerant temperature on R 22 scale of low side gauge 2 Measure suction line temperature on suction line of the unit 3 Measure outdoor and indoor tempera tures 4 Determine from the table what the super heat should be for the indoor and outdoor temperatures Example indicates 12 F superheat 5 Adjust charge if needed Be sure unit is running at stabilized condition NOTE For installation of the indoor unit and start up of the system please refer to the appr
6. coil side clearance is 12 minimum Consider how power will be run to the unit from the power source Refrigerant piping must be a direct line to the indoor unit Heat pump units produce condensate in the heat pump mode Water will drain from the unit at the base Place the unit so as not to create a hazard for pedestrians SITE PREPARATION Place the unit on a flat concrete surface or pad if on the ground Roof mounting should use a build up platform Piping is through the wall or roof directly to the unit In areas of heavy snowfall condensers should be set above the level of maximum anticipated snowfall 12 is usually adequate www enviromaster com Multi zone Heat Pump Condensing Units S2HB INSTALLATION INSTRUCTIONS SECTION NOTE For T2HB T3HB amp T4HB installation refer to the T2HB T3HB amp T4HB Installation Instruction section in this manual S2HB UNIT MOUNTING SECTION Side discharge unit allows for permanent mounting through the feet This is highly recommended due to the vertical design of the unit 1 Loosen the screws on left and right sides of the front panel Do not remove these screws Accumulator Compressor Capacitor IL IM L WE 1 Filter Driers Lag Bolts r 5 Insert lag bolts through the holes in the bottom of the unit and tighten to secure 2 Remove the screws on the front of the panel 3 To remove f
7. installed correctly and run the unit for one complete cycle to make sure it functions properly To obtain technical service or warranty assistance during or after the installation of this unit check our website www enviromaster com or call your installing contractor or distributor Our technical service department may be contacted at 1 800 228 9364 When calling for assistance please have the following information ready Model Number Serial Number Date of installation A DANGER Tampering with the EMI America Series condenser is dangerous and may result in serious injury or death Tampering voids all warran ties Do not attempt to modify or change this unit in any way Multi zone Heat Pump Condensing Units Read all instructions before using the EMI America Series multi zone heat pump condenser Install or locate this unit only in accordance with these instructions Use this unit only for its intended use as described in this manual Check the rating plate on the EMI America Series multi zone heat pump condenser before installation to make certain the voltage shown is the same as the electric supply to the unit The EMI America Series multi zone heat pump condenser must be con nected only to a properly grounded electrical supply Do not fail to prop erly ground this unit Turn off the electrical supply before servicing the EMI America Series multi zone heat pump condenser
8. ACR type breakers or time delay fuses Select the wire size accord ing to the ampacity rating Remove the four screws on the front panel 4 To access wiring diagram a Remove the four screws on the front panel of the unit and slide the panel down until the upper edge is free then remove the panel b The wiring diagram is located on the inside of the front panel Wiring Diagram www enviromaster com Multi zone Heat Pump Condensing Units T2HB T3HB AND T4HB INSTALLATION INSTRUCTIONS SECTION ELECTRICAL WIRING 5 With a screw driver punch out and remove the knock outs in the low amp high Volt elec trical connec tion box Note Power should be run to a weather proof disconnect box usually within 3 feet of the unit 6 From the disconnect box feed the high Volt wires through a weather proof con duit and run the power through the 7 8 hole from knock out in the unit s electri cal box Anchor with a strain relief fitting Refer to the wiring diagram 7 Following the wiring diagram run wires to the High Volt pigtail in the control box and attach L1 and L2 connections Also run green wire to ground lug 8 Check wiring diagram for the required num ber of low voltage wires to be run between indoor and outdoor sections Multi zone Heat Pump Condensing Units Mounting BL Screw M High Volt Knock out 9 Connect the 24 Volt wiring matching color to ter
9. Do not use the EMI America Series multi zone heat pump condenser if it has damaged wiring is not work ing properly or has been damaged or dropped Save These Instructions Recognize this symbol as an T indication of important safety information www enviromaster com EMI AMERICA SERIES MULTI ZONE HEAT PUMP CONDENSING UNITS DESCRIPTION EMI offers the finest multi zone heat pump outdoor units in the ductless split market the S amp T series S2HB T2HB T3HB amp T4HB Condensing Units The S amp T series S2HB T2HB T3HB amp T4HB allows the installation of two or more circuits from a single outside location when space or aesthetic requirements limit the use of the number of cabinets outdoors Each zone is independent so no mixing of refrigerant occurs When specifying heat pump s it is recommended that the matching indoor unit s be equipped with electric heat All 9 000 and 12 000 Btuh circuit units are equipped with the Duratec Performance Package which includes a large capacity suction accumulator with surge baffles and enhanced oil management and a factory installed solid core filter drier All 18 000 and 24 000 Btuh circuit units include a solid core filter drier and high pressure limit switch The 18 000 Btuh circuits also include a large capacity suction accumulator with surge baffles and enhanced oil management NOTE The crankcase heater is installed with 9 000 and 12 000 Btuh heat pumps C
10. ERFORMANCE S2HB SYSTEM PERFORMANCE MODEL COOLING HEATING Indoor Units Btuh EI SHR EER Btuh HSPF C O P S2HB Outdoor S2HB CAH SYSTEM PERFORMANCE MODEL COOLING HEATING Indoor Units Btuh EI SHR EER Btuh HSPF Outdoor Multi zone Heat Pump Condensing Units 24 www enviromaster com S2HB SYSTEM PERFORMANCE UNH S2HB Side Discharge S2HB UNH SIDE DISCHARGE MODEL COOLING HEATING S2HB Tale eT g GUSTO TERES Btuh SEER SHR EER Btuh HSPF UNHO9 UNHI2 2200 UNHI2 UNHO9 UNHI2 Multi zone Heat Pump Condensing Units 25 www enviromaster com T2HB T3HB AND T4HB DIMENSIONS AND SPECIFICATIONS NOTE All EMI products are subject to ongoing development programs so design and specifications may change without notice 40 56 ___ 38 05 33 66 LINE SET SOUND amp WEIGHT DATA Line Set Diameters Sound Weight voce m Liquid Suction dBA Lbs EERE 1 4 amp 3 8 1 2 amp 3 4 1 4 amp 3 8 1 2 amp 5 8 1 4 amp 3 8 1 2 amp 5 8 1 4 amp 3 8 1 2 amp 3 4 PERFORMANCE CERTIFIED Unitary Small HP Multi zone Heat Pump Condensing Units 26 www enviromaster com T2HB T3HB AND T4HB SPECIFICATIONS NOTE All EMI products are subject to ongoing development programs so design and specifications may change without notice INTERCONNECTING TUBING SPECS T2HB T3HB a
11. ONTROLS AND COMPONENTS FACTORY INSTALLED OR SUPPLIED Compressor and Fan Motor Contactor Capacitor Low Voltage Connections Large Capacity Suction Accumulator 9 12 amp 18 Only High Pressure Control 18 amp 24 Only Solid Core Filter Drier Thermostatically controlled crankcase heater 9 amp 12 Only Common suction pressure access point Hard Start Capacitor Thermostatically controlled crankcase heater This feature energizes the crank case heater only when needed removes the heater from the electrical circuit at conditions where it s not required saving unnecessary Watts and increasing overall system efficiency SYSTEM OPTIONS Sea Coast Style Coated Coils Copper Copper coils e Wind Baffles Louvers INSTALLER SUPPLIED ITEMS Power wiring Low Volt wiring 18 AWG minimum Secure mounting pad or foundation Refrigerant piping Disconnect switch ITEMS FOR CONSIDERATION Locate the unit as close to the indoor sec tion as possible Maximum length allowed is 100 equivalent feet Avoid high traffic areas and prevailing wind locations Surface must be level Mount unit above typical snow levels Ensure free air flow through the unit Air must not recirculate from discharge to in take Air is drawn through the coil with side or top and discharged through the fan grille A minimum 48 clearance is necessary for the condenser discharge Intake
12. a 25W wrap around Crankcase Heater al 5 285 RIE RRISE 2 IMPORTANT NOTES 1 To find the charge adjustment and system charge for any evaporator and tubing length Line Adjustment Line Chg Ft x Line Length System Total Factory Charge Line Adjustment 2 Round to the nearest ounce and allow for gauges and hoses 3 Use R22 refrigerant FIELD CHARGING The use of the superheat method is highly recommended for field charging or checking the existing refrigerant charge in a system Because each installation is different in terms of indoor air flow refrigerant line length etc the factory charge may not be correct for every application To assure the best perfor mance from the air conditioner the refrigerant charge should be checked and adjusted if need be on each installation For proper superheat readings a standard low side refrigerant gauge and an accurate thermometer are needed A mercury or stem type thermometer is not adequate for suction line temperatures We recom mend electric thermocouple thermometers available at most refrigeration wholesal ers however an accurate remote bulb thermometer can be used When mea suring the line temperature be sure the thermometer is well insulated to assure accurate measurements The chart below gives superheat values at various outdoor temperatures Allow at least 5 minutes run ning time between charge adjustments for the unit t
13. actory c Slide the side panel out to access the before installing this unit high low electrical connections and wire diagram 1 All electrical wiring must be run according to NEC and local codes Note Remove the plastic edge guards MEN from the holes and replace with a water 2 Refer to the unit rating plate for voltage tight strain relief fitting High V and a minimum circuit ampacity and over cur split grommet fitting Low V rent protection requirements 5 Power should be run to a weather proof disconnect box usually within 3 feet of the unit pper Miele pn eel e om fms m 6 From the disconnect box run the power through the 7 8 hole on the side of the unit and into the electrical box and an chor with the strain relief fitting FA mn vew ogo mtm wee 4 ad nt T Run wires to the high Volt pigtail in the con trol box and attach L1 and L2 connections Also run green wire to ground wire 5 re iy Multi zone Heat Pump Condensing Units www enviromaster com S2HB ELECTRICAL WIRING INSTALLATION SECTION nside electrical access panel A m Mee e a ac Note Refer to the units wiring diagram for all wiring pe Wire Diagram Low Volt High Volt 8 Check wiring diagram for the re Plastic Edge Guards quired number of low voltage wires to be run
14. aporator Leaving Air WB Outdoor Section Entering Air Leaving Air Temperature Split Operating Pressures Compressor Suction PSIG Compressor Discharge PSIG Power Input Compressor Volts Compressor Amps OD Fan Motor Volts OD Fan Motor Amps ID Fan Motor Volts ID Fan Motor Amps Total Volts Total Amps Temperatures Degrees F Compressor Suction Compressor Discharge Liquid Out Cond Liquid before Expansion Suction out Evaporator Capacity Calculations DB Temp Split at evap Note Rotary compressors are critically charged sys tems do not over charge Refer to the Charge Table specific to the unit being installed or call the factory Anti short cycle protection should be used on systems that use a conventional thermostat Test Summary Compressor Superheat Sub Cooling Save this information for future servicing In the event there is a problem with the unit Perform the test again if possible and have both sets of data ready when calling for assistance Multi zone Heat Pump Condensing Units 19 www enviromaster com MULTI ZONE CONDENSER SEQUENCE OF OPERATION EMI America Series multi zone heat pump condensers are designed to operate with EMI America Series indoor air han dlers Both the condenser outdoor unit and evaporator indoor unit have a high Volt service connection Each is to be inde pendently connected to the electrical ser vice panel See the unit name plate for the correct brea
15. between indoor and out door sections 9 Connect the 24 Volt wiring matching color to color Refer to the wiring diagram on the E Lowel inside panel of the condenser and also refer to the wiring diagram on the indoor Ae unit Low Volt interconnect should be at least 18 AWG To replace side panel slide the slotted holes of the panel onto the loosened screws of the front panel so that the edge of the front panel covers the edge of the side panel Sam y Completed Ps lectrical Connections Multi zone Heat Pump Condensing Units www enviromaster com T2HB T3HB AND T4HB INSTALLATION INSTRUCTIONS SECTION NOTE For S2HB installation refer to the S2HB Installation Instruction in this manual After the T2HB T3HB or T4HB unit is positioned on the concrete slab or platform refer to the Site Preparation in the front of this manual the T2HB T3HB or T4HB is ready for installation 1 Remove the screw on the back panel 1 facet 1 teed TI 2 Remove panel to expose eletrical wiring Mounting Low Volt High Volt 3 Location of electrical and tubing connec tions on back of unit d j High 24 ELECTRICAL WIRING 1 All electrical wiring must be run according to NEC and local codes 2 Refer to the unit rating plate for voltage minimum circuit ampacity and over cur rent protection requirements 3 Use only H
16. e e eee ene e e e e s 5 a NJ fete fee ee ee oe HA ti ue Multi zone Heat Pump Condensing Units 29 www enviromaster com T2HB T3HB AND T4HB SPECIFICATIONS T2HB T3HB or T4HB Top Discharge UNH T2HB T3HB OR T4HB SYSTEM PERFORMANCE DATA Sa MT Outdoor Indoor Air Handler Btuh SEER ET EER Btuh HSPF cop Teso _ 1 26800 32000 Ojo als mem owa uem Lam Ea EZ ES ES ES UJ 9 8 3 3 3 3 y a 3 3 2 3 2 3 2 3 3 8 3 2 E N WIW Wi wy wy wy W W EE O lO O UO TOI INTO O S 5 1 UNHO9 1 UNHI2 T3HB9280 EDA 1 UNHO9 1 UNHI2 1 UNH24 ES ES Circuit Designators 9 9000 Btuh 2 12000 Brun 8 18000 Btuh 4 24000 Btuh ex 8400 consists of one 18000 Btuh compressor and one 24000 Btuh compressor UJ UJ s 8 y O s WIWIWIWIWI WS Ww 0 N OIO a x N 00 0 CO ME 7 rj 7 7 7 7 7 7 7 7 7 7 7 3 3 3 3 N 7 7 7 7 7 7 7 1 7 7 7 7 7 vi 7 7 7 7 7 7 7 7 1 3 3 3 3 3 N Multi zone Heat Pump Condensing Units 30 www enviromaster com
17. f tubing Connect and braze tubing into the in door air handler 7 Attach manifold set Manifold Vacuum Pump Micron Gage 3 The use of a shield is recommend one can be made from some scrap metal to protect the paint ee 33 En M AX 8 Evacuate line to 500 microns or less to ensure all moisture has been removed and there are no leaks It is illegal to discharge refrigerant into the atmosphere Use proper reclaiming methods amp equipment when installing or 4 Braze tubing into fittings servicing this unit Multi zone Heat Pump Condensing Units www enviromaster com MULTI ZONE HEAT PUMP REFRIGERANT PIPING INSTALLATION Refer to Refrigerant Charge Table for specified line charge 9 Once certain of a good evacuation and leak free joints back seat the valves counter clockwise to open and allow factory charge to fill lines and indoor unit 10 Charge to proper weight charge based on feet of interconnect table on next page 11 Refer to Field Charging Charts to fine tune the refrigerant charge to meet your conditions Multi zone Heat Pump Condensing Units MCN eb The units are delivered pre charged with refrigerant for the condenser coil and the evaporator Charging of the field installed piping is required Refer to the refrigerant charge table for the proper amount to be added for the applications interconnect piping Unit service va
18. ith sweat connections and are equipped with refrigerant valves and Schrader fittings for charging and taking pressure readings The following precau tions should be made Be certain no burrs remain on the fittings Use only clean refrigeration tubing Use tube benders to guard against kinking Avoid piping on wet and rainy days and insulate suction line Be certain that plastic end caps remain in place when inserting through wall openings Isolate tubing from transmitting vibra tion to the building or unit and avoid contact with sharp edges Refrigera tion valves should be wrapped with a wet rag heat sink to protect valves while brazing PISTON ORIFICE CHANGE KIT INSTALLATION When a WLH24 or UNH24 air handler is matched with a T2HB or T3HB contain ing a 24 000 Btuh nominal capacity circuit the air handler must have it s stock piston changed from 0 059 to 0 063 Air Handler A 24 000 Btuh nominal circuit can be identified by the 4 in the model number capacity field i e T2HBx4xx Refer to the instructions sup plied with kit part number 240006777 Circuit Designators 9 9000 Btuh 2 12000 Btuh 8 18000 Btuh 4 24000 Btuh ex 8400 consists of one 18000 Btuh compressor and one 24000 Btuh compressor Model Air Handler Condenser Btuh T2HB2400 T2HB8400 T2HB4400 T3HB9940 T3HB9240 T3HB2240 Factory Installed Piston Orifice Size Field Changeover Piston Orifice Size No
19. ker type and size The outdoor and indoor units are also connected to each other through a low Volt interconnect wiring A 24V transformer located in the indoor unit provides the low Volt power source The S amp T series S2HB T2HB T3HB amp T4HB heat pumps will provide comfort cooling or heat pump operation operate at an outdoor temperature range between 35 F and 115 F for cooling and 75 F for heat pump heating The S amp T series S2HB T2HB T3HB amp T4HB heat pump condensers are de signed to operate as a single stage cool ing two stage heating unit For full opera tion the unit should be matched with an appropriate EMI indoor unit with electric heat and unit mounted controls or a wall mounted thermostat For two stage heating operation the indoor unit must be equipped with an electric strip heater See the instruction manual for the indoor unit on the selection of the proper thermo stat for the system Condenser Operation The transformer located in the indoor unit provides 24V low Volt control power to the condenser outdoor unit This can be mea sured across low Volt terminals R and C Heat pump condensers utilize a reversing valve to provide reverse cycle operation Therefore the outdoor unit will act as ei ther a condenser or an evaporator there Multi zone Heat Pump Condensing Units by providing comfort cooling or heating to the indoor space The reversing valve is ene
20. lves are solid brass for sweat connections IMPORTANT All systems require field charge adjustments Refer to the Refrig erant Charge Tables for proper weight charge and to the supplied Field Charging Charts for proper system pressures and temperature at different outdoor condi tions Superheat should be used for final system charge in cooling mode Subcool should be used for final system charge in heating mode RECAP OF COMPLETING PIPING CONNECTIONS Pressure test all field installed piping and the indoor air handler with nitrogen Using a suitable vacuum pump evacuate the tubing and indoor unit to 500 microns or less with service values remaining front seated closed Before releasing the refrigerant from the condenser be sure the manifold gauge set is closed so as not to lose vacuum when shutting down the pump Release refrigerant from the condensing unit by back seating the service value Al len wrenches are used to open the valve Replace valve caps Be careful to not back seat the valves past the snap flanges that hold the valve core in place WWW enviromaster com MULTI ZONE HEAT PUMP REFRIGERANT PIPING INSTALLATION MULTI ZONE HEAT PUMP REFRIGERANT CHARGE TABLE Factory Charge Circuit Capacity Btuh Evaporator Pairing Line Line Chg ft Length 10 ft 0 25 oz 25 ft 0 25 oz Any 18 000 Btuh circuit with more than 87 feet of tubing gt 112 oz of total refrigerant charge requires
21. minal block designation for each zone as labeled Refer to the wiring diagram on the inside front panel of the condenser and also refer to the wiring diagram on the indoor unit Low Volt interconnect should be at least 18 AWG When connecting to the rear terminal strip there are two approaches a Using a long straight screw driver over the top of the front terminal strip while holding the wire with needle nose pliers from below b Remove the mounting screw stubby screwdriver then pull the entire front terminal strip forward disengaging the tab on left from slot When finished reinsert terminal strip tab into slot and reinstall mounting screw Make sure that Low Volt wiring for each circuit is connected to the matching Low Volt wiring 10 Replace the unit s electric box cover and the front panel and tighten screws WWW enviromaster com MULTI ZONE HEAT PUMP REFRIGERANT PIPING INSTALLATION NOTE Refrigerant Piping Installation for all of the multi zone heat pump models INTERCONNECTING TUBING SPECS S2HB T2HB T3HB amp T4HB models Nominal Maximum Liquid Suction Circuit end Lift Line Line Capacity 9 OD OD CAH24 UNH24 WLH24 Suction Connection size is 3 4 O D and must bush down to 5 8 for 18 000 Btuh circuits at the indoor unit The system will support refrigerant runs to the inside unit of up to 100 equivalent feet with a 35 rise included The units are furnished w
22. mp T4HB models Nominal Liquid Suction MON Maximum Maximum Circuit Lift Line Line Capacity OD OD 77 5K CAH24 UNH24 WLH24 Suction Connection size is 3 4 O D and must bush down to 5 8 for 18 000 Btuh circuits at the indoor unit EE SPECIFICATIONS T2HB T3HB AND T4HB a 60 HERTZ 1 PHASE FANMTR MTR COMPRESSOR O CAPACITY CIRCUIT CIRCUIT 2 CIRCUIT 4 ee sae eet T2HB os se sa 15 eo 15 oss se 5 ez gt Le s sse se eo ENE EN EO po Dur ao 18 oss ss z seo 035 25 54 56 T3HB 2 9990 9920 9980 9940 9220 9280 9240 2280 2240 2220 0022 zo zo 27 27 Circuit Designators 9 9000 Btuh 2 12000 Btuh 8 18000 Btuh 4 24000 Btuh 8400 consists of one 18000 Btuh compressor and one 24000 Btuh compressor gt en ewe Kol sa 5 5 5 N C 4 amp o amp lo 3 amp o x o MNMINININI NI NININ NINININININI OJO A I UJ Co ALATA LR LRT AB C N 9999 N IN Ls I I I oo oo oo
23. o stabilize The S amp T series S2HB T2HB T3HB amp T4HB have manifold access points on each of the service valves for the high and low pressures in cooling mode There is an additional common suction access point above each service valve set to provide low pressure access in the heating mode as both service valves are at high side pressure Multi zone Heat Pump Condensing Units www enviromaster com MULTI ZONE HEAT PUMP FIELD CHARGING Cooling Cycle Cooling Cycle 9 000 Btuh Circuit 12 000 Btuh Circuit with EMI s UNHO9 WLHO9 or CAH12 R 22 Ref with EMI s UNH12 WLH12 or CAH12 R 22 Ref 340 340 Room Temp F En T Room Temp CF Relative Humidity 50 L Relative Humidity 50 300 300 EEE KAK A A 260 260 2 d 220 a 220 I I 5 I 180 180 140 140 95 4 95 amp 85 amp 85 d 5 3 75 u 75 a a z 5 65 3 65 55 22 35 35 25 25 Compressor Superheat F Compressor Superheat F 65 75 85 95 105 115 65 75 85 95 105 115 Outdoor Temp F Outdoor Temp F Note Minimum compressor superheat 5 F Note Minimum compressor superheat 5 F Multi zone Heat Pump Condensing Units www enviromaster com MULTI ZONE HEAT PUMP FIELD CHARGING Cooling Cycle Cooling Cycle 18 000 Btuh Circuit 24 000 Btuh Circuit with EMI s UINH24 WLH24 or CAH24 R 22 Ref with EMI s UNH24 WLH24 or CAH24 R 22 Ref 340 RoomTem
24. om re starting for three minutes Note For full operation the indoor unit must have an electric heater WWW enviromaster com SINGLE ZONE AND DUAL ZONE SEQUENCE OF OPERATION TESTING DEFROST OPERATION USING TEST PINS DEFROST CONTROL ICM COR OFORB24AZ WARNING Before removing the access panels to the unit make sure that all power is dis connected from the unit Failure to do so could result in injury or electric shock Defrost operation can be initiated us ing the test pins located on the circuit board of the condensing unit Defrost test operation will be a time compressed ver sion of the actual defrost cycle With the system off using two small alligator clips jumper the following sets of test pins R and DF2 and DFT TST Defrost control board Apply power to the indoor and outdoor units Place the indoor unit in heating mode with the set point temperature well above room tem perature This is to ensure that the con denser will remain on during the entire defrost test operation The condenser will operate in heat ing for approximately 20 seconds At that point the unit will enter defrost mode for approximately 2 seconds During this time the condenser fan will switch off the re versing valve will energize and the defrost board will energize the indoor electric heat relay through the W terminal After the two second defrost cycle is complete the unit will switch back to hea
25. opriate installation manual for your indoor product to complete the installation STARTING THE UNIT Before starting the unit in cool weather power the system 24 hours before at tempting to start Do a final system check using the super heat subcooling method Record results on Test Unit Performance Data sheet next page Cooling mode superheat is set with a proper sized piston and charge using the field charging charts Heating mode superheatis set with a LXV and should be 5 10 F When charging a system in heat mode use the subcool method field charging charts Multi zone Heat Pump Condensing Units Remove gauge set Mount all access panels and make sure they are properly secured Make final visual inspection and repair any deficiencies Proceed to the Sequence Of Operation on the following pages 18 www enviromaster com START UP AND TROUBLESHOOTING TEST PROCEDURE The Test Unit Performance Data sheet below is provided for use by a qualified service professional In order for our Techni cal Service Department to better serve you please complete and have this information ready when calling Make sure to include the Model Number Serial Number Date of Installation Call our Technical Support Department 1 800 228 9364 Test Unit Performance Data Model Number Serial Number Indoor Section Evaporator Entering Air DB Evaporator Entering Air WB Evaporator Leaving Air DB Ev
26. p CF RoomTemp CF D Relative Humidity 5096 Relative Humidity 5096 ps 9 300 ui amp E 2 5 260 3 a ja 220 T 180 140 95 A 2 85 y y 5 5 wv ui g y 7 E 3 gt 3 8 65 55 LL m 9 35 S F ET o 25 3 a a L 9 9 15 y 9 5 a 5 E 5 65 75 85 95 105 115 hd 65 75 85 95 105 115 Outdoor Temp F Outdoor Temp F Note Minimum compressor superheat 5 Note Minimum compressor superheat 5 F Multi zone Heat Pump Condensing Units 15 www enviromaster com MULTI ZONE HEAT PUMP FIELD CHARGING Heat Cycle Heat Cycle 9 000 Btuh Circuit 12 000 Btuh Circuit with EMI s UNHO9 WLHO9 or CAH 12 R 22 Ref with EMIs UNH12 WLH12 or CAH12 R 22 Ref Room Temp F C High Pressure psig High Pressure psig Low Pressure psig Low Pressure psig 3 3 E 9 2 n 5 ui wi 5 5 5 10 20 30 40 50 60 10 20 30 40 50 60 Outdoor Temp F RH 50 Outdoor Temp F RH 50 Multi zone Heat Pump Condensing Units www enviromaster com MULTI ZONE HEAT PUMP FIELD CHARGING Heat Cycle Heat Cycle 18 000 Btuh Circuit 24 000 Btuh Circuit with EMI s UNH 24 WLH24 or CAH 24 R 22 Ref with EMI s UNH24 WLH24 or CAH24 R 22 Ref RoomTemp CF High Pressure psig High Pressure psig Bo F 70 F LL Low Pressure psig Low Pressure psig Liquid Subcooling
27. rgized in cooling Should the valve fail to actuate the system will default to the heating mode of operation Cooling operation Multi zone Heat Pump Cooling mode operation requires that the control either unit mount or remote wall mount thermostat make a connection be tween low Volt terminals and Y along with and When the indoor control is placed in cooling mode with the set point temperature below the room temperature the reversing valve will energize R amp O along with the compressor and outdoor fan R amp Y When the indoor control is satis fied and the room temperature falls below the set temperature the compressor and fan will de energize The EMI indoor unit is equipped with an anti short cycle timer ASCT will prevent the compressor from re starting for three minutes Heating operation Multi zone Heat Pump Heating mode operation requires that the control either unit mount or remote wall mount thermostat make a connection between low Volt terminals and Y only When the indoor control is placed in heating mode with the set point tem perature above room temperature the compressor and outdoor fan R amp Y will energize When the indoor control is satis fied and the room temperature rises above the set temperature the compressor and fan will de energize The EMI indoor unit is equipped with an anti short cycle timer ASCT will prevent the compressor fr
28. ront panel 6 Insert lag bolts through the holes in the feet on the back of the unit and tighten to secure 7 Replace the front panel do not tighten the side screws at this time 4 Slide front panel forward to clear side screws and remove Multi zone Heat Pump Condensing Units www enviromaster com S2HB ELECTRICAL WIRING INSTALLATION SECTION DANGER A 3 Use only HACR type breakers or time The EMI America Series condensing delay fuses Select the wire size accord unit must ing to the ampacity rating Be connected to a properly grounded electrical supply with the proper voltage as Stated on the rating plate 4 To access electrical connections and wiring diagram Have proper over current protection i e a Remove the screws on the side panel time delay fuse HACR Breaker as listed adjacent to the back panel on the Rating Plate b The screws adjacent to the front panel should already be loose don t Failure to follow these instructions can re remove them sult in a fire explosion or electrical shock causing property damage personal injury or death Do not use the EMI America Series condensing unit with any electrical supply voltage other than the one listed on the rating plate Check the rating plate on the unit for the correct voltage rating Failure to use the correct voltage may result in death serious bodily injury or property damage If you have any questions or doubts consult the f
29. t cycle TXV and cannot be charged to superheat use weight or subcooling method only Charging should be done with a dial a charge or weighed in with a scale NOTE For more information please visit our web site at www enviromaster com or call 1 800 228 9364 WWW enviromaster com S2HB DIMENSIONS AND SPECIFICATIONS NOTE All EMI products are subject to ongoing development programs so design and specifications may change without notice Easy access interconnects on back of unit 44 SSIS 1 2 Diameter Lag Holes Front of unit Electrical connections S2HB ELECTRICAL SPECIFICATIONS COMPRESSOR 1 COMPRESSOR ora MIN CIR AMPS RLA HP RLA LRA RLA ye AMPS 2 soo zzo os 2 sa 23 se os 2200 20e2a0601 12 os 27 4s wa ns io 1 Circuit Designators 9 9 000 Btuh 2 12 000 Btuh ex Model 9200 consists of one 9 000 Btuh compressor and one 12 000 Btuh compressor 2 Always refer to the rating plate for Minimum Circuit Ampacity on all multiple compressor units S2HB PIPING SPECIFICATIONS SHIPPING SND DE WEIGHT Model VOLTS HZ PHASE PERFORMANCE CERTIFIED s Standard 210241 Unitary Small HP Liquid Suction wij ern Do Multi zone Heat Pump Condensing Units 23 www enviromaster com S2HB SYSTEM P
30. te This kit is only supplied with the above Heat Pump models Multi zone Heat Pump Condensing Units www enviromaster com P TRAP INSTALLATION A P trap is recommended when the suc A P trap may be fabricated using tion riser is equal to or greater than 20 feet in height 2 street elbows and 2 regular elbows A prefabricated trap may be purchased from a Wholesaler or Distributor how ever the trap should be shallow as the 4 elbow configuration Each elbow is approximately 2 equivalent feet One P trap is equal to approximately 8 equiva lent feet When the condenser is installed above the evaporator the P trap will help the return of oil back to the compressor The placement of the P trap should be at the halfway mark of the suction riser For example if the suction riser is 30 feet tall then a P trap is recommended at the 15 foot mark of the suction riser see Figure 1 Figure 1 Condenser Evaporator Multi zone Heat Pump Condensing Units 10 www enviromaster com MULTI ZONE HEAT PUMP REFRIGERANT PIPING INSTALLATION 1 Clean the ends of tubing and insert into fittings 5 Verify that the correct piston for the sys tem match is in place refer to the air handler Installation Instructions 2 Protect the valves by wrapping with a wet rag heat sink before brazing 6 Refer to the indoor air handler Installa tion Instructions for any specific details regarding the connection o
31. ther 30 60 or 90 minutes At the start of the defrost cycle the re versing valve will change from heating to cooling mode The condenser fan will also switch off there by allowing pressure and temperature to rise within the condenser www enviromaster com Multi zone Heat Pump Condensing Units MULTI ZONE CONDENSER SEQUENCE OF OPERATION coil melting off any ice build up At the same time the unit will switch on the in door electric strip heater to temper the cold air being discharged from the evapo rator unit This will continue until either the defrost sensor opens approx 60 F or a 10 minute maximum cycle time has elapsed Defrost times will vary depend ing on outdoor temperature and moisture conditions When the defrost cycle is com plete the unit will return to normal heating operation Factory settings 9 24k Btu 90 minutes LOW VOLT INTERCONNECT DIAGRAMS UNH Universal Air Handler WLH Wall Unit amp CAHB Cassette Heat Pump Applications LD UNIT OPTIONAL WALL T STAT Some thermostats do not use a C terminal Electric heat option R Connection for S1H Single Zone only CAHA Cassette Heat Pump Applications O D UNIT UNIT WALL THERMOSTAT 5 BRN ole R RED YEL S r4 ern amp L 4 amp GRN ORG S D l G Ei JES Q 0 ORG La jin weir amp sx WHT o C BRN amp gt BEN _
32. ting opera tion for another 20 seconds This process will repeat until the jumpers are removed from the test pins Note the condenser coil is heavily frosted up with ice it is likely that the Defrost Sensor is already closed In this case the R and DFT jumper can be eliminated To initiate defrost mo mentarily jump pins marked DFT TST until the defrost cycle begins The unit will remain in defrost mode until the condenser coil is defrosted and then it will return to heating mode When test ing is complete be sure to remove the jumper s DO NOT leave the unit in test mode with jumper s in place AY Defrost controls with short cycle protection heat pumps only The unit is equipped with a logic control circuit de signed to keep system operating at peek efficiency The 24V circuit provides control to the indoor and outdoor systems includ ing a three minute anti short cycle timer ASCT compressor protection The defrost control circuit is designed to keep the condenser coil free from frost and ice during heating mode This is ac complished through the precise switching sequence of the outdoor fan reversing valve and indoor auxiliary heater AV Defrost initiation The defrost sensor is located on either the end plate or the re turn bend of the condenser coil A defrost cycle will initiate after the sensor closes approx 30 F and remains closed for the length of time selected on the control board ei

EMI S2HB User's Manual

Contents

Download Pdf Manuals

Related Search

Related Contents