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EMI WLHA manual

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Table of contents for the manual

  • Page 1

    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 . Rome, NY 13440 www .enviromaster .com inst AllA tiOn, OpERA tiOn AnD mAintEnAncE mAnuAl An ISO 9001-2000 Certied Company WLCA/WLHA stRAigHt cOOl/HEA t pump* Nominal Circuit Capacities: WLHA 9,0[...]

  • Page 2

    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 . 1.3 [05/07] Shipping Damage MUST be Reported to the Carrier IMMEDIA TEL Y!!! Exa mine the cart on fo r si gns of da mage if any i s ev iden t ope n pa ckag ing a nd check th[...]

  • Page 3

    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. It of fers a co ntem po - ra ry de si gn in a du ct le ss typ e ev ap or at or and combines attractive appearance with high ef cienc[...]

  • Page 4

    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. WL[...]

  • Page 5

    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. notE: Pipin g may be roughe[...]

  • Page 6

    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. Use only HACr type breakers.[...]

  • Page 7

    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. 6. C onnect the ground wire to the ground lug or le[...]

  • Page 8

    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 When connecting to a defrosting heat pump, such as EMI model S1HA, indoor units with electric heat utilize ve intercon - necting low Volt wires betw[...]

  • Page 9

    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. SINgLE-ZONE HEA T PUMPS ONL Y T wo- stage heating requires the combination of a h[...]

  • Page 10

    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. Do not insulate the liquid line (sm all) . Connec t the outd oor uni t a[...]

  • Page 11

    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 . Line-set diameter is determined by the condenser service valve size. Use of a larger dia[...]

  • Page 12

    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. Op - eration charts and charge tables can be found in the EMI Condenser IOMs. It [...]

  • Page 13

    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./ 28 oz. S2CA22 WLHA12 .25 oz. 33 oz./ 33 oz. S2CA92 WLHA09+WLHA12 .25 oz. 28 oz./ 33 oz. s1C[...]

  • Page 14

    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 satised 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. Replace the bottom panal. 2 . Fa st en t h e r [...]

  • Page 15

    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. ControL UsEr intErf ACE instrUCtions “fiL tEr CHECK” I [...]

  • Page 16

    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. quick Copy While in 7-day programming mode, press - ing the “F AN”[...]

  • Page 17

    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 . The fan wi ll o pera te conti nuou s r egard less of set po int or room te mper ature s. A[...]

  • Page 18

    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. The sequence is 01, 02, 03, 04, 05, 06 and Auto. Once the desired setting is selected, press the Fan/ Louver button momentarily or let idle for 10 seconds to exit the louver set mo[...]

  • Page 19

    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. Once the room tem - peratu[...]

  • Page 20

    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. Pressing the “MODE” (BACK) button will return to [...]

  • Page 21

    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. 21) “02 r – t” “ON” Remote wall thermostat on “OFF” “[...]

  • Page 22

    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. When in Sleep Timer [...]

  • Page 23

    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. The thermostat may also have a “C” terminal. If the indoor unit [...]

  • Page 24

    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. Depending on the thermostat selected, electric heat will also energ[...]

  • Page 25

    www .enviromaster .com 25 WLCA/WLHA High Wall Evaporator Note: While in Remote thermostat mode (see conguration), only the “F AN” and “TIME” buttons are acti - vated and will beep when pressed. Memory Backup: In th e ev en t of a po we r fai lu re th e con tro l wil l re ta in all of it ’s se tt in gs inc lu di ng the mo de of operatio[...]

  • Page 26

    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 T emp T ime T emp T ime T emp Morning Cool Heat : : : : : : : Auto Day Cool Heat : : : : : : : Auto Evening Cool Heat : : : : : : : Auto Night Cool He[...]

  • Page 27

    www .enviromaster .com 27 WLCA/WLHA High Wall Evaporator The T est Unit Performance Data sheet below is provided for use by a qualied 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. Make sure [...]

  • Page 28

    www .enviromaster .com WLCA/WLHA High Wall Evaporator 28 mAintEnAnCE And troUBLEsHootinG proCEdUrE mAintEnAnCE Service should be performed by a qualied 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. T o insure peak operating efci[...]

  • Page 29

    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 qualied service technician. Before removing access panels or control covers to expose moving parts of non-insulated live electrical compo - nen ts for serv ice, disco nnec t all high V [...]

  • Page 30

    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. Secondly using a voltmeter check the inc oming pow er suppl y to see that it agr ees with the rating pl[...]

  • Page 31

    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. DO NOT LEAVE THE SYSTEM IN TEST MODE! LoW VoLt ControLs Cooling only Units Cooling only[...]

  • Page 32

    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. It s[...]

  • Page 33

    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 . Whe n connecting an EMI evaporator to a non- EMI conde nse[...]

  • Page 34

    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 . Ge ne ra ll y this is where freeze up will begin. • C he ck th at th e[...]

  • Page 35

    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 specications may change without notice. A B C D E 5 ¼” 1 ½” 2” 4 ⅜” WLCA/WLHA oBsEr VEd soUnd V ALUEs * (230V High speed fan) model dBA 09/12 45 18/24 [...]

  • Page 36

    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.d. suction o.d. C[...]

  • Page 37

    www .enviromaster .com 37 WLCA/WLHA High Wall Evaporator WLCA/WLHA systEm options notE: Due to EMI’s ongoing development programs, design and specications 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. S1CA9 WLHA09 9,000 13.[...]

  • Page 38

    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 specications 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. WLHA24 T2CA88 36,[...]

  • Page 39

    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 defects in material and workmanship under the normal use and maintenance for a period of twelve months for all components and sixty months on unit compress[...]

  • Page 40

    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 High Wall Evaporator CACB Cassette Evaporator Phone: 1-800-228-9364 Fax: 1-800-232-9364 5780 Success Drive, Rome, NY 13440[...]