Retro Aire R40C User Manual Download

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The Right Fit for Comfort

™

ECR International Inc

2201 Dwyer Avenue

Utica, NY 13501

e-mail: [email protected]

An ISO 9001-2008 Certified Company

P/N 240008639, Rev. B [8/16/2011]

R40C

Packaged Terminal Air Conditioner (PTAC)

Straight cooling nominal capacities

Btuh

9,000

12,000

15,000

(2.6)

(3.5)

(4.4)

Installation, Operation,

& Maintenance Manual

R40C

Replacement for:

Fedders Model CMEA

packaged terminal unit

Summary of Contents for R40C

Page 1: ...oAire com An ISO 9001 2008 Certified Company P N 240008639 Rev B 8 16 2011 R40C Packaged Terminal Air Conditioner PTAC Straight cooling nominal capacities Btuh 9 000 12 000 15 000 kW 2 6 3 5 4 4 Installation Operation Maintenance Manual R40C Replacement for Fedders Model CMEA packaged terminal unit ...

Page 2: ...neral Product Information 4 6 Product description 4 Standard controls and components 4 Factory installed options consult the factory 4 Field installed options 4 R40C Chassis 5 7 PTAC PTHP Model Coding 8 Features 9 10 Optional wall mounted thermostats 10 Preparing for the Installation of the PTAC PTHP 11 Electrical power connection 11 Remove the old chassis 11 Installation Instructions R40C 12 Sequ...

Page 3: ...use as described in this manual Turn off the electrical supply before servicing the unit PTAC PTHP chassis are heavy To avoid injury use assistance when lifting Do not use the unit if it has damaged wiring is not working properly or has been damaged or dropped Failuretofollowtheseinstructionsmayresultinimproperinstalla tion operation service ormaintenance possiblyresultinginfire electrical shock p...

Page 4: ...g emergency heat if an auxiliary heat source is available Low ambient protection see Microprocessor control board for details Ability to control a normally open or normally closed motor valve switch on hydronic heat units only Valve controls must be ordered for 24V or line voltage All hydronic heat units include molex plugs for connection of hydronic valve motor Remote mount controls include fan s...

Page 5: ...uts 5 POS Terminal Block Optional Knockouts Thermostat System Switch SS Fan Speed Switch FSS Remote Mount Unit Mount R40C Chassis Figure 1 Replacement Packaged Terminal Air Conditioning Heat Pump Installation Operation and Maintenance Manual P N 240008639 Rev B 8 16 2011 5 Made in USA ...

Page 6: ... Information continued Open Close Remove Screws to Open Door Rating Plate Electrical Diagram Replacement Packaged Terminal Air Conditioning Heat Pump Installation Operation and Maintenance Manual The Right Fit for Comfort 6 P N 240008639 Rev B 8 16 2011 ...

Page 7: ...continued R40C Dimensioned Front View Figure 3 R40C Dimensioned Rear View Figure 4 Replacement Packaged Terminal Air Conditioning Heat Pump Installation Operation and Maintenance Manual P N 240008639 Rev B 8 16 2011 7 Made in USA ...

Page 8: ...lve line volt 3 RMT remote tstat hyd heat N O or N C valve line volt 4 UM unit mount hyd heat N O or N C valve 24 volt 5 RMT remote tstat hyd heat N O or N C valve 24 volt Voltage A 115 V 1 60 Models 9 12 BTU only D 208 230 V 1 60 Chassis coding verify with rating plate Position number 1 2 3 5 4 6 7 8 9 10 11 12 13 14 15 R Cooling Capacity 09 9 000 Btuh 12 12 000 Btuh 15 15 000 Btuh Model coding F...

Page 9: ... compressor from starting This staggers the starting of multiple units in a single facility preventing a large surge that might occur if all units started at the same time Anti short cycle timer standard The microprocessor control uses this timing to prevent short cycling of the compressor When the compressor cycles off on a heating or cooling call the controller starts a 180 second timer The comp...

Page 10: ...point range of between 45 F 7 C and 90 F 32 C For heat pumps another option is EMI part number 240008209 This is a 2 stage heat cool thermostat which allows for emergency heat Selecting a thermostat by others When selecting a thermostat other than one offered by EMI choose a single stage heat cool 24v thermostat Straight cooling with electric heat or hydronic heat R10C PTAC s Select a thermostat t...

Page 11: ...tage is 208v Change the transformer tap from orange to red See the wiring diagram for details Electrical power connection Check the RetroAire unit rating plate for circuit ampacity and 1 required breaker or fuse size Verify that the existing breaker or fuse is the correct size 2 Replace the breaker or fuse if incorrectly sized a Breakers must be type HACR only b Cord connected units verify that th...

Page 12: ... supplied with unit Install only one set of left and right side baffles on the condenser coil by completing steps below Choosetheproperfittingbafflesforyourapplicationbyverifying selected baffles come in contact with the outdoor louver Make sure the baffles are directed inward toward the center of coil Securebafflestightlyintotheexistingholesofthecondensercoil using the screws provided NOTICE Thec...

Page 13: ...ated and the Processor Board Trouble Code LED is set toblinka2flashcode Thistimerpreventsthecompressorfromrapid cycling AftertheAnti ShortCycleTimerexpires theProcessorBoard Trouble Code LED is set to blink a 1 blink Trouble Code indicating normal operation R_ _C R_ _H Cooling Operation For unit mount controls With the System Switch SS set to Cool and the Fan Cycle Switch FCS set to On Continuous ...

Page 14: ...le Code LED is set to flash a 1 blink Trouble Code indicating normal operation R_ _H Auxiliary Heating Electric or Hydronic If the outdoor coil temperature falls to 25 ºF 4 ºC or below for180secondsatanytimeduringaheatingcall thecompressor and outdoor fan motor will be de energized and auxiliary heat will be energized The Anti Short Cycle Timer will be initi ated prohibiting compressor operation f...

Page 15: ...t metal panels are in place and secure Attach the front panel to the existing cabinet enclosure Verify that nothing will interfere with the room discharge air or the return air of the units Examples Check for curtains or drapes that obstruct the air flow See Figure 8 and Figure 9 Check for plush carpeting that can obstruct the return air Items like these can cause serious damage to the chassis CAU...

Page 16: ...ion HP Jumper Figure 10 selects heat pump or straight cooling TEST jumper to select normal or test mode This jumper is for use in testing only see Figure 11 and Figure 12 When the JUMPER pins are jumpered together all timers are elimi nated example anti short cycle purge etc This is mainly used for production line testing But it may be used for field testing as well The units are factory set with ...

Page 17: ...r 3 switch to the YES position and verify the damper opens and allows fresh air to be moved into the space Then set the damper door switch to the NO position and verify the flow of air into the space has stopped Fresh air will only be available when the indoor fan is running Verify that the 4 HP jumper is set correctly for the unit type cooling only or heat pump unit see Figure 10 page 16 Set the ...

Page 18: ...rom the processor board will activate the water or steam valve The motorized valve should open and allow hot water or steam to run through the coil The indoor fans will run blowing air through the hydronic coil If the unit is equipped with an Aquastat the indoor fan and the motorized damper operation will be delayed until the hydronic coil reaches 100 5 F 38 3 C Thesignaltothewaterorsteamvalvewill...

Page 19: ...n will stop The indoor fan will switch off after the sixty second purge time has elapsed NOTICE Roomtemperaturemustbebelow85 F 29 C forthecompres sor to operate in heating mode on PTHP s with unit mounted controllers Place the thermostat or system switch in the 6 OFF position All operation should stop NOTICE Heat pump units are Limited Range equipped with back up electric resistance heat Limited R...

Page 20: ...ing and the space gets warmer the hydronic valve will close and indoor fan will switch off after the sixty second purge time has elapsed Aftertheunitstartsrunningandthespacegetswarmer 3 adjustthe thermostattoacoolertemperaturesetting thehydronicvalvewill close and indoor fan will switch off after the sixty second purge time has elapsed If a warmer room temperature is desired 4 adjust the thermosta...

Page 21: ...ton on the face of the switch see Figure 14 Maintenance Troubleshooting Figure 14 Manual Reset Limit Switch Reset Button Note Button will pop out when limit switch opens Push in to reset WARNING Clean or replace the return air filter as needed Allowing dust to collect on the filter will cause the unit to lose efficiency and eventually malfunction Check the filter at least once a month Some environ...

Page 22: ...t Failure to do so could result in severe personal injury or death Should the heat pump fail the control board can be forced into electric heat mode This is a temporary solution until the heat pump system can be repaired Locate the circuit board in the control section of the unit 1 Locate the terminals where the outdoor sensor connects to the 2 circuit board Using a small needle nose type pliers d...

Page 23: ... Make sure the sensors are correctly wired 77 F 10KOhms 50F 19 9KOhms 35F 30KOhms 30F 34 4KOhms The thermostat is satisfied but the fan is still running If the thermostat is set to auto mode once the thermostat is satisfied the fan will stay ener gized for an extra 60 seconds to purge the unit of excess cool or warm air in the plenum If the thermostat fan switch is set to ON the fan will stay ener...

Page 24: ... the limit switch opens and de energizes the electric heat the limit switch will need to be manu ally reset To reset switch Remove the control box cover Locate the limit switch Push in the reset button on the face of the switch WARNING Clean or replace the return air filter as needed Allowing dust to collect on the filter will cause the unit to lose efficiency and eventually malfunction Check the ...

Page 25: ...evelopment programs design specifications and performance data is subject to change with out notice Please consult the factory for further information For the most current unit system performance data please refer to our website at www ecrinternational com or Enviromaster International listing of certified products in the ARI certified directory at www ahridirectory org Replacement Packaged Termin...

Page 26: ...5 6 30P 230 4000 17 4 18 22 3 5 208 4089 19 7 20 3 25 2 30 6 30P 230 5000 21 7 22 3 27 8 R40 9 000 BTU Table 3 electrical specifications R40 12 000 BTU Table 4 electrical specifications Power Supply Volt 1 60 Compressor Indoor Fan Motor Outdoor Fan Motor Electric Heat Unit Electrical Ratings Volt Min RLA LRA FLA Hp FLA Hp Htr Volt W HA TCA THA MCA MOCP Plug 115V 104 10 8 53 1 4 0 09 1 6 0 125 0 N ...

Page 27: ...n RLA LRA FLA Hp FLA Hp Htr Volt W HA TCA THA MCA MOCP Plug 208 230V 197 7 4 33 0 6 0 08 0 71 0 09 0 N A N A N A 8 7 N A 10 6 15 6 15P 2 208 1636 7 9 8 5 10 6 15 6 15P 230 2000 8 7 9 3 11 6 3 208 2454 11 8 12 4 15 5 20 6 20P 230 3000 13 13 6 16 1 4 208 3271 15 7 16 3 20 4 25 6 30P 230 4000 17 4 18 22 5 5 208 4089 19 7 20 3 25 3 30 6 30P 230 5000 21 7 22 3 27 9 Electrical Specifications Replacement...

Page 28: ...ECR International Inc 2201 Dwyer Avenue Utica NY 13501 e mail info RetroAire com An ISO 9001 2008 Certified Company The Right Fit for Comfort 28 P N 240008639 Rev B 8 16 2011 Warranty ...

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