EMI S2HA Installation, Operation And Maintenance Manual

Multi-zone limited range heat pump condensing units

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MULTI-ZONE LIMITED RANGE HEAT PUMP

S2HA & T2HA HEAT PUMPS

Nominal Circuit Capacities:

9,000 12,000 18,000 & 24,000

Enviromaster International LLC

5780 Success Dr.

Rome, NY 13440

www.enviromaster.com

EMI AMERICA SERIES

CONDENSING UNITS

Btuh units.

An ISO 9001-2000 Certiﬁed Company

P/N# 240006458 Rev. 1.1 [04/07]

S2HA Multi-Zone

T2HA Multi-Zone

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Summary of Contents for EMI S2HA

Page 1 EMI AMERICA SERIES MULTI-ZONE LIMITED RANGE HEAT PUMP CONDENSING UNITS S2HA & T2HA HEAT PUMPS Nominal Circuit Capacities: 9,000 12,000 18,000 & 24,000 Enviromaster International LLC 5780 Success Dr. Rome, NY 13440 www.enviromaster.com Btuh units. An ISO 9001-2000 Certiﬁed Company P/N# 240006458 Rev.
Page 3: Safety Instructions
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.
Page 4 DESCRIPTION EMI offers the ﬁnest multi-zone heat pump outdoor units in the ductless split market, the S & T series (S2HA, T2HA, T3HA & T4HA) Condensing Units. The S & T series (S2HA, T2HA, T3HA & T4HA) allows the installation of two or more circuits from a single...
Page 5 3. To remove front panel: 4. Slide front panel forward to clear side screws and remove. Multi-zone Heat Pump Condensing Units S2HA UNIT MOUNTING SECTION Accumulator 5. Insert lag bolts through the holes in the bottom of the unit and tighten to secure.
Page 6 ﬁre, explosion, or electrical shock causing property damage, personal injury, or death. DANGER 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.
Page 7 S2HA ELECTRICAL WIRING INSTALLATION SECTION Note: Refer to the units’ wiring diagram for all wiring. 8. Check wiring diagram for the re- quired number of low voltage wires to be run between indoor and out- door sections. Low Volt Connection...
Page 8: Electrical Wiring
T2HA INSTALLATION INSTRUCTIONS NOTE: For S2HA installation refer to the S2HA Installation Instruction in this manual. 1. Remove the screw on the back panel. 2. Remove panel to expose eletri- cal wiring. 3. Location of electrical and tubing connec- tions on back of unit (T4C shown).
Page 9 7. Following the wiring diagram, to the High Volt pigtail in the control box and attach L1 and L2 connections. Also run green wire to ground lug. Multi-zone Heat Pump Condensing Units ELECTRICAL WIRING Low Volt Knock-out 8. Check wiring diagram for the required number of low voltage wires to be run between indoor and outdoor sections.
Page 10 S2HA & T2HA REFRIGERANT PIPING INSTALLATION SECTION NOTE: Refrigerant Piping Installation for both the S2HA & T2HA models. INTERCONNECTING TUBING SPECS S2HA, T2HA, T3HA, & T4HA models: Nominal Maximum Maximum Circuit Length Lift Capacity 9,000 100’ 35’ 12,000 100’ 35’...
Page 11 S2HA & T2HA REFRIGERANT PIPING INSTALLATION SECTION 1. Clean the ends of tubing and insert into ﬁ ttings. 2. Protect the valves by wrapping with a wet rag "heat sink" before brazing. 3. The use of a shield is recommend (one can be made from some scrap metal) to protect the paint.
Page 12 S2HA & T2HA REFRIGERANT PIPING INSTALLATION SECTION T2HA Shown Refer to Refrigerant Charge Table for speciﬁed line charge. Note: Charging should be done with a dial-a-charge or weighed in with a scale. 9. Once certain of a good evacuation and...
Page 13: Important Notes
Allow at least 5 minutes run- ning time between charge adjustments for the unit to stabilize. The S & T series (S2HA, T2HA, T3HA & T4HA) has manifold access points on each of the service valves for the high and low pressures in cooling mode.
Page 14: Cooling Cycle
MULTI-ZONE HEAT PUMP FIELD CHARGING Cooling Cycle 9,000 Btuh Circuit with EMI’s-WLHA09 or CAHB12 (�� ...
Page 15 MULTI-ZONE HEAT PUMP FIELD CHARGING Cooling Cycle 18,000 Btuh Circuit with EMI’s-WLHA24 or CAHB24 (�� ...
Page 16 MULTI-ZONE HEAT PUMP FIELD CHARGING Heat Cycle 9,000 Btuh Circuit with EMI WLHA09 or CAHB12 (�� ...
Page 17 MULTI-ZONE HEAT PUMP FIELD CHARGING Heat Cycle 18,000 Btuh Circuit with EMI’s-WLHA24 or CAHB24 (�� ...
Page 18: Starting The Unit
S2HA & T2HA REFRIGERANT PIPING INSTALLATION SECTION 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.
Page 19 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 Multi-zone Heat Pump Condensing Units ready when calling. Make sure to include the Model Number, Serial Number, Date of Installation.
Page 20 Volt interconnect wiring. A 24V transformer located in the indoor unit provides the low Volt power source. The S & T series (S2HA, T2HA, T3HA & T4HA) is a limited range heat pumps that will provide comfort cooling or heat pump operation operate at an outdoor tempera- ture range between 35°F and 115°F for...
Page 21: Operation And Maintenance
Therefore, the opera- tion will be described in the manual pertaining to the indoor section. The S & T series (S2HA, T2HA, T3HA & T4HA) will cease compressor operation at 35°F outdoor temperature. If in heating mode, the electric heat will take over when the compressor ceases operation.
Page 22 S2HA DIMENSIONS AND SPECIFICATIONS NOTE: All EMI products are subject to ongoing development programs so design and 15” 38” 44” Front of unit MODEL VOLTS/HZ/PHASE 9900 208-230/60/1 2200 208-230/60/1 9200 208-230/60/1 (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.
Page 23 S2HA Indoor Units (Outdoor) 9900 WLHA09 + WLHA09 2200 WLHA12 + WLHA12 9200 WLHA09 + WLHA12 CAHB S2HA / CAHB SYSTEM PERFORMANCE DATA MODEL S2HA Indoor Units (Outdoor) 9900 CAHB12 + CAHB12 2200 CAHB12 + CAHB12 9200 CAHB12 + CAHB12...
Page 24 T2HA DIMENSIONS AND SPECIFICATIONS NOTE: All EMI products are subject to ongoing development programs so design and speciﬁcations may change without notice. SOUND & WEIGHT DATA Sound Model T2HA8800 T2HA8400 T2HA4400 T2HA, T3HA, AND T4HA - 208/230V - 60 HERTZ 1 - PHASE...
Page 25 T2HA DIMENSIONS AND SPECIFICATIONS Model T2HA Outdoor Condenser 8800 8400 4400 Model T2HA Outdoor Condenser 8800 8400 4400 WLHA / T2HA SYSTEM PERFORMANCE DATA Indoor Air Handler Btuh WLHA24 + WLHA24 36000 WLHA24 + WLHA24 42000 WLHA24 + WLHA24 48000 T2HA Top Discharge CAHB / T2HA SYSTEM PERFORMANCE DATA...

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T2ha T3ha T4ha

EMI S2HA Installation, Operation And Maintenance Manual

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Summary of Contents for EMI S2HA

Page 3: Safety Instructions

Page 8: Electrical Wiring

Page 13: Important Notes

Page 14: Cooling Cycle

Page 18: Starting The Unit

Page 21: Operation And Maintenance

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