installation, operation and maintenance MANUAL EMI America Series Multi-Zone Heat Pump Condensing Units S2HB, T2HB, T3HB, and T4HB Heat Pumps Nominal Circuit Capacities: 9,000 12,000 18,000 & 24,000 Btuh units. S2HB Multi-Zone T2HB, T3HB, & T4HB Multi-Zone Enviromaster International LLC 5780 Success Dr. Rome, NY 13440 www.enviromaster.com An ISO 9001-2000 Certified Company P/N# 240006458 Rev.
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.
EMI America Series Multi-zone Heat Pump Condensing Units DESCRIPTION SYSTEM OPTIONS • Sea Coast Style Coated Coils / Copper-Copper coils • Wind Baffles - Louvers• EMI offers the finest multi-zone heat pump outdoor units in the ductless split market, the S & T series (S2HB, T2HB, T3HB & T4HB) Condensing Units.
S2HB Installation Instructions Section NOTE: For T2HB, T3HB, & T4HB installation refer to the T2HB, T3HB, & 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 Filter Driers Lag Bolts 5.
S2HB Electrical Wiring Installation Section ! DANGER ! The EMI America Series condensing unit must: • Be connected to a properly grounded electrical supply with the proper voltage as stated on the rating plate. 3. Use only HACR type breakers or time delay fuses. Select the wire size according to the ampacity rating. 4. To access electrical connections and wiring diagram: a) Remove the screws on the side panel adjacent to the back panel.
S2HB Electrical Wiring Installation Section Inside electrical access panel. Note: Refer to the units’ wiring diagram for all wiring. Wire Diagram 8. Check wiring diagram for the required number of low voltage wires to be run between indoor and outdoor sections. Low Volt High Volt plastic edge guards 9. Connect the 24 volt wiring matching color to color. Refer to the wiring diagram on the inside panel of the condenser, and also refer to the wiring diagram on the indoor unit.
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. ELECTRICAL WIRING 1. All electrical wiring must be run according to NEC and local codes. 2.
T2HB, T3HB, and T4HB Installation Instructions Section ELECTRICAL WIRING 5. With a screwdriver punch out and remove the knock-outs in the low & high Volt electrical connection box. Mounting Screw Low Volt High Volt Knock-out 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 conduit and run the power through the 7/8" hole (from knock-out) in the unit’s electrical box.
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, & T4HB models: Nominal Circuit Capacity Maximum Maximum Length Lift Liquid Line OD Suction Line OD Schrader fittings for charging and taking pressure readings. The following precautions should be made: • Be certain no burrs remain on the fittings. 9,000 100’ 35’ 1/4” 1/2” • Use only clean refrigeration tubing.
P-Trap Installation • A P-trap is recommended when the suction riser is equal to or greater than 20 feet in height. • A P-trap may be fabricated using; (2) street elbows and (2) regular elbows. A prefabricated trap may be purchased from a Wholesaler or Distributor however the trap should be shallow as the: (4) elbow configuration. Each elbow is approximately 2 equivalent feet. One Ptrap is equal to approximately 8 equivalent feet.
Multi-Zone Heat Pump Refrigerant Piping Installation 1. Clean the ends of tubing and insert into fittings. 2. Protect the valves by wrapping with a wet rag "heat sink" before brazing. 5. Verify that the correct piston for the system match is in place, refer to the air handler Installation Instructions. 6. Refer to the indoor air handler Installation Instructions for any specific details regarding the connection of tubing. Connect and braze tubing into the indoor air handler. 7. Attach manifold set.
Multi-Zone Heat Pump Refrigerant Piping Installation Refer to Refrigerant Charge Table for specified line charge. nt igera Refr 22 R Note: Charging should be done with a dial-a-charge or weighed in with a scale. 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.
Multi-Zone Heat Pump Refrigerant Piping Installation Multi-Zone Heat Pump Refrigerant Charge Table Circuit Capacity Btuh Evaporator Pairing Line Chg/ft Line Length Line Adjust Factory Charge Total Charge 9000 WLH09 CAH12 UNH09 0.25 oz 10 ft 25 ft 50 ft 3 oz 6 oz 13 oz 42 45 oz 48 oz 55 oz 12000 WLH12 CAH12 UNH12 0.25 oz 10 ft 25 ft 50 ft 3 oz 6 oz 13 oz 46 49 oz 52 oz 59 oz 18000 WLH24 CAH24 UNH24 0.
Multi-zone Heat Pump Field Charging Multi-zone Heat Pump Condensing Units 14 www.enviromaster.
Multi-zone Heat Pump Field Charging Multi-zone Heat Pump Condensing Units 15 www.enviromaster.
Multi-zone Heat Pump Field Charging Multi-zone Heat Pump Condensing Units 16 www.enviromaster.
Multi-zone Heat Pump Field Charging Multi-zone Heat Pump Condensing Units 17 www.enviromaster.
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 lowside gauge. 2. Suction line temperature taken at the unit is 70° F. 70° F minus 38° F equals 32° F superheat. 3.
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 Technical 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.
Multi-zone Condenser Sequence of Operation EMI America Series multi-zone heat pump condensers are designed to operate with EMI America Series indoor air handlers. Both the condenser (outdoor unit) and evaporator (indoor unit) have a high Volt service connection. Each is to be independently connected to the electrical service panel. (See the unit name plate for the correct breaker type and size). The outdoor and indoor units are also connected to each other through a low Volt interconnect wiring.
Single-Zone and Dual-Zone Sequence of Operation Testing Defrost Operation using test pins Defrost Control DFT TST R and DF2 Warning! Before removing the access panels to the unit make sure that all power is disconnected from the unit. Failure to do so could result in injury or electric shock. Defrost operation can be initiated using the test pins located on the circuit board of the condensing unit. “Defrost test operation” will be a time compressed version of the actual defrost cycle.
Multi-zone Condenser Sequence of Operation coil, melting off any ice build-up. At the same time the unit will switch on the indoor electric strip heater to temper the cold air being discharged from the evaporator 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 depending on outdoor temperature and moisture conditions. When the defrost cycle is complete the unit will return to normal heating operation.
S2HB dimensions and specifications Note: All EMI products are subject to ongoing development programs so design and specifications may change without notice. 15” 38” Easy access interconnects on back of unit 44” 1/2” Diameter Lag Holes Front of unit 3.00” Electrical connections 12.44” 23.94” 7” 7” S2HB ELECTRICAL SPECIFICATIONS MODEL VOLTS/HZ/PHASE (1) FAN COMPRESSOR 1 COMPRESSOR 2 TOTAL AMPS MIN. CIR. HACR AMPS BRKR (2) RLA HP RLA LRA RLA LRA 9900 208-230/60/1 1.8 0.33 3.
S2HB System Performance WLH S2HB S2HB / WLH System Performance MODEL COOLING HEATING S2HB (Outdoor) Indoor Units Btuh SEER SHR EER Btuh HSPF C.O.P. 9900 WLH09 + WLH09 18,600 13.0 .80 11.9 14,800 7.7 3.3 2200 WLH12 + WLH12 22,600 13.0 .72 11.7 18,400 7.7 3.3 9200 WLH09 + WLH12 20,600 13.0 .76 11.7 16,600 7.7 3.3 CAH CAH S2HB S2HB / CAH System Performance MODEL COOLING HEATING S2HB (Outdoor) Indoor Units Btuh SEER SHR EER Btuh HSPF C.O.P.
S2HB System Performance UNH S2HB Side Discharge S2HB / UNH Side discharge Model Cooling Heating S2HB (Outdoor) Indoor Units Btuh SEER SHR EER Btuh HSPF C.O.P. 9900 UNH09 + UNH09 18,600 13.0 .75 11.9 14,800 7.7 3.3 2200 UNH12 + UNH12 22,600 13.0 .73 11.7 18,400 7.7 3.3 9200 UNH09 + UNH12 20,600 13.0 .74 11.7 16,600 7.7 3.3 Multi-zone Heat Pump Condensing Units 25 www.enviromaster.
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. Line set, Sound & Weight Data Model Line Set Diameters Liquid Sound Weight Suction dBA Lbs.
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, & T4HB models: Nominal Circuit Capacity Maximum Maximum Length Lift Liquid Line OD Suction Line OD 9,000 100’ 35’ 1/4” 1/2” 12,000 100’ 35’ 1/4” 1/2” 18,000 100’ 35’ 3/8” 5/8”* 24,000 100’ 35’ 3/8” 3/4” * CAH24, UNH24, WLH24 Suction Connection size is 3/4” O.D.
T2HB, T3HB, and T4HB specifications WLH T2HB, T3HB, or T4HB Top Discharge WLH / T2HB, T3HB, or T4HB System Performance Data Model Outdoor Indoor Air Handler Cooling Btuh SEER Heating SHR EER Btuh HSPF COP T2HB8800 (2) WLH24 36000 13 0.72 12.1 26800 7.7 3.3 T2HB8400 (2) WLH24 42000 13 0.68 11.9 32000 7.7 3.2 T2HB4400 (2) WLH24 48000 13 0.65 11.8 37400 7.7 3.2 T2HB2400 (1) WLH12 + (1) WLH24 35000 13 0.67 11.7 27800 7.7 3.
T2HB, T3HB, and T4HB specifications CAH T2HB, T3HB, or T4HB Top Discharge CAH / T2HB, T3HB, or T4HB System Performance Data Model Cooling Heating Outdoor Indoor Air Handler Btuh SEER SHR EER Btuh HSPF COP T2HB8800 (2) CAH24 36000 13 0.75 12.3 24400 7.7 3.1 T2HB8400 (2) CAH24 42000 13 0.71 12.1 30600 7.7 3.1 T2HB4400 (2) CAH24 48000 13 0.67 11.7 36800 7.7 3.1 T2HB2400 (1) CAH12 + (1) CAH24 35000 13 0.69 11.5 27600 7.7 3.
T2HB, T3HB, and T4HB specifications T2HB, T3HB, or T4HB Top Discharge UNH UNH / T2HB, T3HB, or T4HB System Performance Data Model Outdoor T2HB8800 Cooling Indoor Air Handler Heating Btuh SEER SHR EER Btuh HSPF COP (2) UNH24 36000 13 0.72 12.1 26800 7.7 3.3 T2HB8400 (2) UNH24 42000 13 0.68 11.9 32000 7.7 3.2 T2HB4400 (2) UNH24 48000 13 0.65 11.8 37400 7.7 3.2 T2HB2400 (1) UNH12 + (1) UNH24 35000 13 0.67 11.7 27800 7.7 3.
EMI’s High SEER Product Line Evaporators CAC/CAH Cassette Evaporator WLC/WLH High Wall Evaporator UNC/UNH Universal Evaporator Condensers S1C & S1H Single Zone Side Discharge S2C & S2H Dual Zone Side Discharge Multi-zone Heat Pump Condensing Units T2C, T3C & T4C T2H, T3H & T4H 2, 3, & 4 Zone Top Discharge 31 www.enviromaster.
Phone: 1-800-228-9364 Fax: 1-800-232-9364 5780 Success Drive, Rome, NY 13440
