EMI WLH09 Installation, Operation And Maintenance Manual

America series

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HigH EfficiEncy DuctlEss split systEm

Wlc/WlH HigH WAll EVApORAtOR

stRAigHt cOOl/HEAt pump*

Nominal Circuit Capacities:

WLH 9,000, 12,000, 18,000, 24,000 Btuh*

and WLC (only) 30,000 & 36,000 Btuh

* Heat Pump only available for 9,000-24,000 Btuh units.

WLC/WLH

Enviromaster International LLC

5780 Success Dr.

An ISO 9001-2000 Certified Company

Rome, NY 13440

www.enviromaster.com

P/N# 240006021 Rev. A [05/08]

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Summary of Contents for EMI WLH09

Page 1 HigH EfficiEncy DuctlEss split systEm Wlc/WlH HigH WAll EVApORAtOR stRAigHt cOOl/HEAt pump* Nominal Circuit Capacities: WLH 9,000, 12,000, 18,000, 24,000 Btuh* and WLC (only) 30,000 & 36,000 Btuh * Heat Pump only available for 9,000-24,000 Btuh units. WLC/WLH Enviromaster International LLC 5780 Success Dr.
Page 3 And mAintEnAnCE mAnUAL This manual is intended as an aid to a qualified service personnel for proper installation, operation, and maintenance of EMI AmericaSeries high efficiency evaporators. Carefully read these instructions 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 • Room air sampling: Selectable time intervals ensure the fan will cycle ease of installation, operation, and service. on periodically, in Auto Fan Mode It can be matched with EMI’s S1C/S1H to help eliminate room temperature 09-24 and S1C 30-36 Btuh Single-Zone stratification.
Page 5 WLC/WLH ControLs And ComponEnts Continued • Modular design – reduces parts optionAL EqUipmEnt required for control package. Deco • Condensate pump (field installed only) panel, relay board, ribbon cables and • 24V remote wall thermostat microprocessor are combined into one •...
Page 6 WLC/WLH moUntinG prEpArAtion surface to absorb any potential vibration The WLC/WLH must be mounted plumb and level to a vertical surface to and prevent the formation of condensation prevent unit vibration and/or unwanted on the wall. noise. It is recommended that the unit notE: If excessive noise or vibration is be mounted directly to a smooth surface experienced from a unit mounted to a ma-...
Page 7 WLC/WLH HiGH WALL EVAporAtor instALLAtion instrUCtions Electrical Wiring site preparation All wiring should be in accordance with the for the proper wire and breaker or time delay fuse size. National Electric Code (NEC) and the local building codes. 4. Inspect the existing wiring for any defects such as cut or frayed wires.
Page 8 WLC/WLH HiGH WALL EVAporAtor instALLAtion instrUCtions 4. To access High and Low wiring remove the screw on the front of the control box. High Volt Electrical Wiring 5. Refer to the wiring diagram to connect the power wire to Black L1 and the other wire to Red or White (115V) L2 at the power connector location.
Page 9 Low Volt interconnect diagram intercon- When connecting to a defrosting heat nect diagram Figure 1A and Figure 1B pump, such as EMI model S1H, indoor for unit mounted controls. units with electric heat utilize five intercon- necting low Volt wires between the indoor and outdoor units.
Page 10 “O” (or- ange) terminal from the outdoor unit to the thermostat. The reversing valve is energized in the cooling mode for EMI models S1H heat pump condensers. Ensure that any unused wires are insulated with a wire nut to prevent contact with the junction box or other metal surfaces.
Page 11 WLC/WLH HiGH WALL EVAporAtor instALLAtion instrUCtions rEfriGErAnt pipinG The WLC/WLH is equipped with a pipinG do’s And don’ts Flo-Rater/Piston Expansion device. Con- • Avoid piping on a rainy day. nections are sweat type. • Use refrigerant grade copper tubing. • Use a tubing bender and avoid unnec- The suction line (large) must be insulated essary bending.
Page 12 18,000 Btuh compressor (“8” in the capacity decoding field). The piston will need replacement only on the 18,000 Btuh zone.* Your EMI evaporator unit contains the appropriate piston for your model. Refer to this document to determine if a change is required based on your condenser rating. If your match is not listed below no piston change is required.
Page 13 Follow the instructions in the outdoor unit for line evacuation, opening service valves, and final charge adjustments. Op- eration charts and charge tables can be found in the EMI Condenser IOMs. manifold setup for Evacuation 1. Clean the ends of tubing and insert into fittings.
Page 14 .56 oz. 48 oz. R-22 .56 oz. 60 oz. R-22 s1C rEfriGErAnt CHArGE tABLE Condenser Evaporator pairing Line Chg/ft factory Charge S1C9 WLH09 .25 oz. 37 oz. S1C2 WLH12 .25 oz. 40 oz. S1C8 WLH24 .56 oz. 51 oz. S1C4 WLH24 .56 oz.
Page 15 WLC/WLH HiGH WALL EVAporAtor instALLAtion instrUCtions rEAssEmBLinG tHE WLC/WLH CABinEt When satisfied that the system is leak free reinstall the bottom and left end cap in the precise order shown below: Ensure seam is tight. 1. Replace the bottom panel. 5.
Page 16 ControL UsEr intErfACE instrUCtions qUiCK GUidE – UsEr intErfACE BUttons “modE” button = select mode of operation, Cool, Heat, Auto changeover (ACO), Dry or Fan mode. “Up” arrow button = increase set “timEr” button = enter or exit point temp., also = increment set- Sleep Timer mode.
Page 17: Configuration Mode
ControL UsEr intErfACE instrUCtions UsEr intErfACE BUttons ver mode. To enter the louver mode press The “fAn” button will select and hold the Fan/Louver button for three the fan speed, High, Low or Auto. High and low are constant fan speed settings seconds.
Page 18 Dry mode. In Dry mode, the fan will oper- Control operation ate constantly at low speed. The LCD will EMI Air Handlers are equipped with a unit indicate fan speed selection. mount, infrared compatible control pack- High and Low are constant fan settings.
Page 19 sEqUEnCE of opErAtion – Unit moUntEd KEy pAd modE room temperature and setpoint tempera- or Down arrow buttons will allow selection ture will be displayed. Press either the of six different fixed louver positions or Up or Down arrow buttons to change the auto (oscillation) mode.
Page 20 sEqUEnCE of opErAtion – Unit moUntEd KEy pAd modE perature by two degrees, heating will stop between room temperature and setpoint and cooling will continue to bring the room temperature is less than two degrees. At that time the electric heat will switch off temperature back down to setpoint temper- and the heat pump (compressor) will take ature.
Page 21 sEqUEnCE of opErAtion – Unit moUntEd KEy pAd modE any mode including the Off mode. To en- manual run ter the Set Time mode, press the “TIME” button in for three seconds. Pressing This is normal operating (non pre-pro- the “PROG” (NEXT) button will advance gram run) mode.
Page 22 sEqUEnCE of opErAtion – Unit moUntEd KEy pAd modE Configuration Mode room Air sampling In the auto (cycling) fan mode Room While the unit is in the Off mode, Air Sampling will automatically cycle the pressing the “MODE” and “PROG” but- fan on for a minimum of 60 seconds, with tons simultaneously for 10 seconds will the control in the satisfied state, to peri-...
Page 23 Selecting a thermostat “by others” When selecting a thermostat other than In Remote Thermostat mode the unit those offered by EMI, it is important to mounted keypad will have limited capabil- choose a 24V thermostat that matches ity. Some of the buttons will not be oper- able.
Page 24 sEqUEnCE of opErAtion – WALL moUntEd tHErmostAt modE Note: Once the cooling has cycled off Heat Pump with Electric Heat: or following a power outage, the com- Select a thermostat that is compatible with a single stage cooling, two-stage pressor will not start for at least three heat, heat pump system.
Page 25 sEqUEnCE of opErAtion – WALL moUntEd tHErmostAt modE place the system switch in Heat mode. source from cycling off prematurely. The Adjust the set-point temperature above minimum ON time for both the compressor and electric heat is two minutes. Minimum the room temperature.
Page 26 sEqUEnCE of opErAtion – WALL moUntEd tHErmostAt modE Condensate fault: E02 Note: While in Remote thermostat If the control senses a condensate fault mode (see configuration), only the condition either through the optional con- “FAN” and “TIME” buttons are acti- densate pumps safety switch or the drain vated and will beep when pressed.
Page 27 optionAL HAnd HELd ControLLEr proGrAmminG Table #2 proGrAmminG sCHEdULE Cool Heat Auto Cool Heat Auto Cool Heat Auto Cool Heat Auto To copy the settings from any day to the entire week: 1) Select the day to be copied. 2) Simultaneously press the “FAN” and “PROg” buttons for three seconds. initiAL stArt-Up Operation of the unit depends on the room temperature.
Page 28 tEst Unit pErformAnCE dAtA sHEEt The Test Unit Performance Data sheet this information ready when calling. Make below is provided for use by a qualified sure to include the Model Number, Serial service professional in the event that there Number, Date of Installation. is a problem with the unit.
Page 29 Turn the POWER OFF to the unit before servicing or cleaning. Service should be performed by a qualified service agency and an annual system check is recommended. EMI units are designed and constructed for reliability and long life with minimal maintenance. To insure peak operating efficiency: 1.
Page 30 Please have the full model and serial number available prior to calling. EMI America Series evaporators are designed to operate with EMI America Series condensers. The evaporator (indoor unit) and condenser (outdoor unit) are to be WLCA/WLHA High Wall Evaporator...
Page 31 Figure 1B Figure 2 C power supply Check Figure 2 A When trouble shooting any EMI prod- uct, it is important to first check the rating plate for proper field voltage and breaker size. Secondly using a voltmeter check the incoming power supply to see that it agrees with the rating plate.
Page 32 troUBLEsHootinG proCEdUrE Continued end plate or on the heater assembly will CAUTION interrupt power to the heater should an over-heat condition occur. Each electric While in test mode, all timers are heat assembly is also equipped with a one eliminated. Avoid short cycling the time fuse link (if triggered a new fuse link is compressor.
Page 33 As a safety feature, an auto Continued resetting limit switch located on the heater EMI heat pump systems utilize a reversing end plate or on the heater assembly will valve is that is energized in the cooling interrupt power to the heater should an over- mode.
Page 34 Asked questions q: The system has just been installed us- q: The display on the indoor unit is blank. ing an EMI indoor unit and a non-EMI What should I do? condenser. There is no display and the A: Check the power supply (see “Power unit will not operate.
Page 35 troUBLEsHootinG proCEdUrE Continued frequently Asked questions Continued to prevent freeze up from occurring. If • Is the equipment being operated freeze up does occur then check the in cooling mode when outdoor following. temperatures are below 60°F? If it is, then the condenser should be •...
Page 36 WLC/WLH HiGH WALL EVAporAtor spECifiCAtions And dimEnsions notE: Due to EMI’s ongoing development programs, design and specifications may change without notice. 5 ¼” 1 ½” 2” 4 ⅜” WLC/WLH pHysiCAL dimEnsions “A” “B” “C” “d” “E” mounting tubing model depth...
Page 37 WLC/WLH HiGH WALL EVAporAtor spECifiCAtions WLC/WLH ELECtriCAL spECifiCAtions MODEL HEATER TOTAL HACR VOLTS/HZ/PH AMPS M.C.A. K.W. AMPS VOLT BRKR smALL CABinEt 09/12 115/60/1 0.64 0.02 – – 0.64 115/60/1 0.64 0.02 0.75 6.50 7.14 09/12 208/230/60/1 0.34 0.02 – – 0.34 208/230/60/1 0.34...
Page 38 WLC/WLH systEm options notE: Due to EMI’s ongoing development programs, design and specifications may change without notice. WLC/WLH S1C/S1H Side Discharge Side Discharge CooLinG systEms WitH WALL Units Condenser Wall Unit Btuh sEEr ref. S1C9 WLH09 9,000 13.0 11.8 S1C2...
Page 39 WLC/WLH systEm options Continued notE: Due to EMI’s ongoing development programs, design and specifications may change without notice. T2C, T3C & T4C Top Discharge systEm options WITH t2C top disCHArGE Wall Unit(s) Condenser Btuh sEEr ref. WLH24 T2C88 36,000 12.1...
Page 40 Emi’s HiGH EffiCiEnCy prodUCt LinE indoor Units WLC/WLH CAC/CAH High Wall Air Handler Cassette Air Handler UNC/UNH Universal Floor or Ceiling Air Handler oUtdoor Units T2C, T3C and T4C 2, 3 and 4 Zone Top Discharge S1C & S1H Single Zone...

This manual is also suitable for:

Wlh12 Wlh24 Wlc30 Wlc36