Instruction/ maintenance manual of the product WLHA EMI
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HigH EfficiEncy DuctlEss split systEm WlcA/WlHA HigH W All EV ApORA tOR P/N# 240006021 Rev . 1.3 [05/07] Enviromaster International LLC 5780 Success Dr .
www .enviromaster .com WLCA/WLHA High Wall Evaporator 2 inst ALLA tion, opErA tion And mAintEnAnCE mAnUAL WLCA/WLHA HiGH W ALL HiGH EffiCiEnCy EV AporA tor P/N 240006021, Rev .
www .enviromaster .com 3 WLCA/WLHA High Wall Evaporator ControLs And ComponEnts C ontinued prodUCt dEsCription The AmericaSeries WLCA/WLHA i s ava ilab le as a (Dx) di rect expa nsio n stra ight cool and heat pump.
www .enviromaster .com WLCA/WLHA High Wall Evaporator 4 itEms for ConsidErA tion Determine the best location for mount - ing the unit for room air circulation. Locate outdoor and indoor units as close together as possible. Determine how power wire (high and low voltage) condensate drainage, and refrigerant piping may be run to and from the unit.
www .enviromaster .com 5 WLCA/WLHA High Wall Evaporator WLCA/WLHA HiGH W ALL Unit moUntinG WLCA/WLHA moUntinG prEp ArA tion 1. After determining the best location for the unit, use the cardboard template provided in the packaging. 2. Mark where the piping, electrical wiring and condensate drain should penetrate the wall.
www .enviromaster .com WLCA/WLHA High Wall Evaporator 6 Electrical Wiring site preparation All wiring should be in accordance with the National Electric Code (NEC) and the local building codes. 1. Make sure power is off. 2. Check th e un it r at ing pl at e for ci rc ui t am - pacity and breaker or time delay fuse size.
www .enviromaster .com 7 WLCA/WLHA High Wall Evaporator Note: All low V olt interconnect wiring must be at least 18 A Wg. High V olt Electrical Wiring 5. Refer to the wiring diagram to connect the power wire to Black L1 and the other wire to Red or White (1 15V) L2 at the power connector location.
www .enviromaster .com WLCA/WLHA High Wall Evaporator 8 LoW VoL t intErConnECt WirinG for Unit moUntEd ControLs remote thermostat Controls Heat pump Connection Unit mount Controls T wo-Stage Heating W.
www .enviromaster .com 9 WLCA/WLHA High Wall Evaporator Figure 2 C Figure 2 B Heat p ump C onnection remote t he rm os tat – t wo-stage Heating Low V olt interconnect diagram interconnect diagram f igures 2A, 2B & 2C fo r rem ot e wa ll th erm ost at c on tr ol.
www .enviromaster .com WLCA/WLHA High Wall Evaporator 10 rEfriGErAnt pipinG The WLCA/WLHA is equipped with a Flo-Rater/Piston Expansion device. Con - nections are sweat type. The suction line (large) must be insulated the enti re length with clos ed cell, foam tube insulation.
www .enviromaster .com 11 WLCA/WLHA High Wall Evaporator piston/orifiCE inst ALLA tion instrUCtion rEfriGErAnt pipinG r educing bushing goes here for 18,000 Btuh system match WLH24 Any change in the diameter of the tubing must be made at the indoor connection .
www .enviromaster .com WLCA/WLHA High Wall Evaporator 12 rEfriGErAnt proCEssinG Finish all pipe connecting before proceeding to charging the system. Follow the instructions in the outdoor unit for line evacuation, opening service valves, and nal charge adjustments.
www .enviromaster .com 13 WLCA/WLHA High Wall Evaporator rEfriGErAnt proCEssinG WLCA/WLHA HiGH W ALL EV AporA tor inst ALLA tion instrUCtions s2CA rEfriGErAnt CHArGE t ABLE Condenser Evaporator pairing Line Chg/ft factory Charge S2CA99 WLHA09 .25 oz. 28 oz.
www .enviromaster .com WLCA/WLHA High Wall Evaporator 14 WLCA/WLHA HiGH W ALL EV AporA tor inst ALLA tion instrUCtions rEAssEmBLinG tHE WLCA/WLHA CABinEt When satised that the system is le a k f re e r ei n s ta l l th e b o tt o m an d l e ft e n d c a p i n th e p r ec i s e order shown below: 1.
www .enviromaster .com 15 WLCA/WLHA High Wall Evaporator UsEr intErf ACE BUttons on/off Pressing the “on/off” button once will switch the unit either on or off. modE The “modE” button allows the selection of the mode of operation, Cool, Heat, Auto changeover (ACO), Dry or Fan mode.
www .enviromaster .com WLCA/WLHA High Wall Evaporator 16 AL tErnA tE BUtton sELECtions Clear filter When the “fiL tEr CHECK” i nd ic at or warning is ashing on the LCD, pressing the “MODE” and “F AN” buttons simultaneously for three seconds will clear the warning.
www .enviromaster .com 17 WLCA/WLHA High Wall Evaporator the desired fan setting in all modes except Dry mode. In Dry mode, the fan will oper - ate constantly at low speed. The LCD will indicate fan speed selection. High and Low ar e const ant fan sett ings .
www .enviromaster .com WLCA/WLHA High Wall Evaporator 18 or Down arrow buttons will allow selection of six dif ferent xed louver positions or auto (oscillation) mode.
www .enviromaster .com 19 WLCA/WLHA High Wall Evaporator between room temperature and setpoint temperature is less than two degrees. At that time the electric heat will switch off and the heat pump (compressor) will take over the heating demand. The electric heater will not re-start until a three minute delay has elapsed.
www .enviromaster .com WLCA/WLHA High Wall Evaporator 20 any mode including the Off mode. T o en - ter the Set T ime mode, press the “TIME” button in for three seconds. Pressing the “PROG” (NEXT) button will advance to the next item. The order is (1) Day of week, (2) Hour and (3) Minute.
www .enviromaster .com 21 WLCA/WLHA High Wall Evaporator T able #1 – ConfiGUrA tion modE sEttinG itEm LCd titLE dispLA y possiBLE V ALUE (flashing) f ACtor y sEttinGs 1 T emperature scale “01 F-C” “F” Fahrenheit “F” “C” Celsius 2 Remote wall thermostat mode (pg.
www .enviromaster .com WLCA/WLHA High Wall Evaporator 22 sleep timer The SLEEP TIMER fe atu re al lo ws th e us er , wi th th e pu sh of a si ng le but to n, to have the unit switch of f using the preset tim - er . Whe n the co ntr ol is in th e “On ” mod e, pressing the “TIMER” will enter or exit the Sleep T imer mode.
www .enviromaster .com 23 WLCA/WLHA High Wall Evaporator Heat Pump with Electric Heat: Select a thermostat that is compatible with a single stage cooling, two-stage heat, heat pump system. The thermostat should have “R”, “Y”, “O”, “W (or W2)” and “G” terminals.
www .enviromaster .com WLCA/WLHA High Wall Evaporator 24 sEqUEnCE of opErA tion – W ALL moUntEd tHErmost A t modE place the system switch in Heat mode. Adjust the set-point temperature above the room temperature. The compres - sor and fan motors will start and heating will begin.
www .enviromaster .com 25 WLCA/WLHA High Wall Evaporator Note: While in Remote thermostat mode (see conguration), only the “F AN” and “TIME” buttons are acti - vated and will beep when pressed.
www .enviromaster .com WLCA/WLHA High Wall Evaporator 26 T able #2 proGrAmminG sCHEdULE monday t uesday Wednesday thursday friday saturday sunday T ime T emp T ime T emp T ime T emp T ime T emp T ime .
www .enviromaster .com 27 WLCA/WLHA High Wall Evaporator The T est Unit Performance Data sheet below is provided for use by a qualied service professional in the event that there is a problem with the unit. In order for our T echnical Service Department to better serve you, please complete and have this information ready when calling.
www .enviromaster .com WLCA/WLHA High Wall Evaporator 28 mAintEnAnCE And troUBLEsHootinG proCEdUrE mAintEnAnCE Service should be performed by a qualied service agency and an annual sys tem check is reco mmen ded. EM I un its are designed and constructed for reliability and long lif e with mini mal mai ntena nce.
www .enviromaster .com 29 WLCA/WLHA High Wall Evaporator troUBLEsHootinG Emi Air H andlers With Unit mount infrared Controls All service should be performed by a qualied service technician.
www .enviromaster .com WLCA/WLHA High Wall Evaporator 30 troUBLEsHootinG proCEdUrE Continued power supply Check When trouble shooting any EMI prod - uct, it is important to rst check the rating plate for proper eld voltage and breaker size.
www .enviromaster .com 31 WLCA/WLHA High Wall Evaporator troUBLEsHootinG proCEdUrE Continued While in test mode, all timers are eliminated. Avoid short cycling the compressor. After system checks are complete, the control must be re - turned to normal operation.
www .enviromaster .com WLCA/WLHA High Wall Evaporator 32 troUBLEsHootinG proCEdUrE Continued optional Heat pump with Electric Heat Continue d EMI heat pump systems utilize a reversing valve is that is energized in the cooling mode. The reversing-valve signal is provided through the orange (O) low V olt wire of the air han dler or th ermos tat.
www .enviromaster .com 33 WLCA/WLHA High Wall Evaporator q: The system has just been installed us - ing an EMI indoor unit and a non-EMI con dense r . The re is no d ispl ay and the unit will not operate. A : EMI air han dler s are manu fact ured wit h a low V olt tra nsfo rmer inst alled .
www .enviromaster .com WLCA/WLHA High Wall Evaporator 34 troUBLEsHootinG proCEdUrE Continued to pr event freez e up fro m occur ring . If free ze up does occur then check the following. • C hec k th at t he fr ee ze se ns or lo ca ted i n th e lo we st p ar t of t he co il .
www .enviromaster .com 35 WLCA/WLHA High Wall Evaporator WLCA/WLHA HiGH W ALL EV AporA tor spECifiCA tions And dimEnsions notE: Due to EMI’s ongoing development programs, design and specications may change without notice.
www .enviromaster .com WLCA/WLHA High Wall Evaporator 36 WLCA/WLHA HiGH W ALL EV AporA tor spECifiCA tions disCHArGE Air spEEd And fLoW @ 230V model High Cfm Low Cfm Coil fpm throw/ ft. 09/12 400 350 Dry 900 15 18/24 750 675 Dry 1,225 25 30/36 1,100 900 Dry 1,250 27 WLCA/WLHA intErConnECtinG-LinE sizE system Capacity Btuh Liquid o.
www .enviromaster .com 37 WLCA/WLHA High Wall Evaporator WLCA/WLHA systEm options notE: Due to EMI’s ongoing development programs, design and specications may change without notice. S1CA/S1HA Side Discharge WLCA/ WLHA S2CA Side Discharge CooLinG systEms WitH W ALL Units C o n d e n s e r W all Unit Btuh sEEr sHr EEr ref.
www .enviromaster .com WLCA/WLHA High Wall Evaporator 38 WLCA/WLHA systEm options Continued T2CA, T3CA & T4CA T op Discharge WLCA notE: Due to EMI’s ongoing development programs, design and specications may change without notice. systEm options WITH t2CA top disCHArGE W all Unit(s) C o n d e n s e r Btuh sEEr sHr EEr ref.
www .enviromaster .com 39 WLCA/WLHA High Wall Evaporator ALL prodUCt LimitEd W ArrAnty Enviromaster International LLC (EMI) warrants to the purchaser/owner that EMI prod - ucts will be free from defec.
Emi’s HiGH EffiCiEnCy prodUCt LinE EV AporA tors CondEnsErs S1CA & S1HA Single Zone Side Discharge S2CA Dual Zone Side Discharge T2CA, T3CA & T4CA 2, 3 & 4 Zone T op Discharge WLCA/WLHA .
An important point after buying a device EMI WLHA (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought EMI WLHA yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data EMI WLHA - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, EMI WLHA you will learn all the available features of the product, as well as information on its operation. The information that you get EMI WLHA will certainly help you make a decision on the purchase.
If you already are a holder of EMI WLHA, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime EMI WLHA.
However, one of the most important roles played by the user manual is to help in solving problems with EMI WLHA. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device EMI WLHA along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
