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EMI CAHV09, Installation, Operation And Maintenance Manual, Page: 28 / 52

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EMI CAHV09 Installation, Operation And Maintenance Manual Download Page 28

Figure 37   - EMI Unit Mounted Controller 

Control Panel

CAHV CONTROLLER OVERVIEW

 WARNING

Electrical shock hazard.  Verify all power is off from 

both indoor cassette unit and outdoor condenser 

unit before removing control box cover. Failure to 

follow these instructions could result in death or 

serious injury.

!

  

28

Summary of Contents for CAHV09

Page 1: ...18 000 24 000 Btuh COOL 2 6 3 5 5 3 7 0 kW 8400 8800 17000 19000 Btuh HEAT 2 5 2 6 5 0 5 6 kW Installation Operation and Maintenance Manual Variable Speed Cassette Ductless Split System Air Handlers P...

Page 2: ...stallation Considerations 8 Mounting The Unit 9 Condensate Piping 12 Duct Connections 13 Refrigerant Piping 14 Refrigerant Processing 15 Final Assembly 17 Electrical Wiring 19 Optional Wired Wall Cont...

Page 3: ...istance during or after installation contact your local representative Visit our web site www enviromaster com for local representative listing For further assistance call 1 800 325 5479 When calling...

Page 4: ...ardous situation which if not avoided could result in death or serious injury CAUTION Indicates a hazardous situation which if not avoided could result in minor or moderate injury NOTICE Indicates inf...

Page 5: ...c heat relay Condensate pump with 36 0 9 m lift measured from base of unit 24V Transformer System Options Wired wall control Electric Heat 230V 1 5 kW models 9 12 3 kW model 18 24 Electric Heat Option...

Page 6: ...Page 7 Model 9 12 Model 18 24 Features 1 Optional discharge knockouts 5 inch diameter 3 available 2 Fresh air inlet knockouts 1 x 2 inches 9 12 2 available 3x3 18 24 3 Condensate discharge inch diamet...

Page 7: ...90 226 J ref 2 67 68 3 38 86 3 38 86 K 25 86 657 35 61 904 47 78 1214 L 12 76 324 18 69 475 24 73 628 M 1 73 44 1 97 50 1 97 50 N ref 2 16 55 2 72 69 2 72 69 O 5 12 130 5 12 130 5 12 130 P ref 11 34...

Page 8: ...ughed in before wallboard or panels are placed in new construction PVC pipe 3 or 4 I D may be used as pipe chase Unpacking Cassette fascia and main chassis are packaged together for increased protecti...

Page 9: ...ed off If fascia discharge slot needs blanking off 1 Remove inlet grilles and filters See Figure 4 and Figure 2 Page 9 2 Turn fascia over to expose polystyrene insulation See Figure 3 3 Push one polys...

Page 10: ...availability Locate optional wired wall mounted thermostat to insure good temperature control Select installation position 1 Position thermostat approximately 5 ft 1 5m above floor level 2 Avoid exter...

Page 11: ...ioning Installation Guides INNER CASE INSULATION CASSETTE CASE Figure 9 Threaded Rods Must Not Protrude More Than 2 Inches Below Mounting Brackets MAXIMUM MAXIMUM 2 2 51mm 51mm Mounting 1 Use template...

Page 12: ...valve become stuck open from airborne debris 4 Slope condensate pipe work downward from highest point in direction of water flow with minimum gradient of 1 per 10 8mm 1m No uphill gradients other tha...

Page 13: ...2 x 64mm rectangular models 9 12 b 3 76mm square models 18 24 3 Cut black insulation around knock out See Figure 13 4 Snip tabs holding knock out in place 5 Remove metal knock out and black insulation...

Page 14: ...igeration valves with wet rag heat sink to protect valves while brazing See Figure 31 Page 20 Refrigerant Piping 1 Clean tubing ends Insert into fittings See Figure 15 2 Protect valves by wrapping wit...

Page 15: ...peratures at different outdoor conditions Sub cool should be used for final system charge Charging should be suitable charge weighed in with scale NOTICE It is illegal to discharge refrigerant into th...

Page 16: ...m 39 5oz 1120g S1HV2000 CAHV12 25 oz ft 23 g m 39 5oz 1120g S1HV8000 CAHV18 64 oz ft 59 g m 54 0oz 1531g S1HV4000 CAHV24 64 oz ft 59 g m 54 0oz 1531g REFRIGERANT PROCESSING Use following example to f...

Page 17: ...connection on chassis a Insure polarized connector 2 position is in proper orientation and connected b Route wires to prevent them from becoming trapped cut broken or chaffed 5 Cassette models CAHV c...

Page 18: ...e vane motor plug on chassis Male Vane Motor Plug On Fascia scia Figure 26 Connect Infrared Unit Cable Figure 27 Secure Fascia To Chassis Figure 28 Adjust Louver Position 30 From Plumb FINAL ASSEMBLY...

Page 19: ...sure voltage drop of less than 1 volt in control wiring 5 When refrigeration pipe work is complete electrical supply can be connected 6 Low voltage wiring must be at least 18 AWG Connect Wiring 1 Loos...

Page 20: ...at Pump Connection Two Stage Heating Cooling Only Cooling only units utilize 4 low volt interconnecting wires between indoor and outdoor units Each wire COM1 COM2 SC and 24 VDC connects to the same na...

Page 21: ...fan button for wired controller Operation High Med Low Cooling Operation Wired wall controls call for cooling operation On or Off Place system switch in Cool mode after connecting controller to unit...

Page 22: ...l mounted control layout see Figure 34 and Figure 35 Low voltage interconnect wiring must be at least 18 AWG 24V control transformer is located in air handler unit Provides low volt control power to b...

Page 23: ...g including heat pump condenser and optional indoor electric heat See Figure 43 pg 33 Wired Wall controls call for electric heat operation On or Off and compressor heat pump heating Place system in He...

Page 24: ...trical connections 2 Separate any lines that contact each other 3 Replace control panel cover filters and grilles 4 Test each power and circuit connection before powering system Perform Electrical Cir...

Page 25: ...too high Check Cooling Operation Cooling only systems Turn system power on and turn down system setpoint to activate compressor Check Heat Pump Operation 1 Heat pump systems Turn system setpoint up to...

Page 26: ...o enable auto changeover between heat cool Set Controller Configuration 1 Review information in Figure 38 Page 29 through Figure 42 Page 32 for general operation of handheld remote or optional wired w...

Page 27: ...erify Heat Pump Operation With Electric Heat Option 1 This is heat pump outdoor unit with optional electric heat source in cassette indoor unit 2 Set configuration for Heat Source ON Heat Pump ON See...

Page 28: ...CAHV CONTROLLER OVERVIEW WARNING Electrical shock hazard Verify all power is off from both indoor cassette unit and outdoor condenser unit before removing control box cover Failure to follow these ins...

Page 29: ...Cooling LED On when unit is in cooling operation Heating LED On during calls for heat 5 Timer Alarm LED On steady while unit is in Sleep Timer mode flashes to indicate fault codes 6 Clear Filter Warn...

Page 30: ...AN Press to toggle between fan modes High Med Low or Auto PROGRAM Normal operation Press to toggle between manual operation and Pre programmed 7 day run mode Configuration Set Time or Programming mode...

Page 31: ...item selection RIGHT ARROW Press for next item selection FAN Press to toggle between fan modes High Med Low or Auto PROGRAM Normal operation Press to toggle between manual operation and Pre programmed...

Page 32: ...age 34 to record settings Day of week Mon Tue Wed Thu Fri Sat Sun Louver is closed when fan is off Period of day Morning Day Evening Night Periods provide four time settings to initiate change in cool...

Page 33: ...dead band Example setpoint 68 F dead band is 3 F cooling is on with room temperature at or above 71 F heating is on with room temperature at or below 65 F Check Filter Time 05 F Lt 2 5 7 10 12 250 Ho...

Page 34: ...rning Cool Heat Auto Time Temp Time Temp Time Temp Time Temp Time Temp Time Temp Time Temp Monday Tuesday Wednes day Thursday Friday Saturday Sunday To copy the settings from any day to the entire wee...

Page 35: ...mote while in hibernate mode Remote returns to mode it was in prior to entering hibernate mode Power Pressing POWER button momentarily switches unit either on or off 1 OFF mode LCD displays time of da...

Page 36: ...lectric Heat Heat Pump Unit Outdoors EMI heat pumps are intended to operate with indoor air handler with optional electric heat If indoor air handler without electric heat is matched with heat pump co...

Page 37: ...ithin two 2 degrees of setpoint unit cycles cooling on seven 7 minutes and off seven 7 minutes to remove humidity from air while not over cooling room 9 If room temperature is less than setpoint tempe...

Page 38: ...or Fan modes 3 Pressing PROGRAM button momentarily enters or exits Pre Programmed Run mode 4 The word PROGRAM appears in LCD display 5 The setpoint changes to programmed setting at selected time To us...

Page 39: ...controller operation fan speed selection can be made through Fan Button See Figure 39 Page 30 Fan Button cycles through High Medium Low Auto Wired wall controller call for fan operation On or Off Afte...

Page 40: ...cling off prematurely Minimum on time for compressor and electric heat is two 2 minutes Drain Pan Sensor Drain pan sensor monitors condensate level in drain pan Should water reach critical level monit...

Page 41: ...er coil temperature too high or low Check system air flow and sensor On 11 Suction temperature too high or low Check system air flow and module On 12 Outdoors ambient temperature too high or low Check...

Page 42: ...d grills Vacuum any accessible unit parts See Figure 45 d Or use garden hose Wash grille and filter with hose Let filters and grilles dry before replacing WARNING DO NOT operate unit without filter an...

Page 43: ...ect wiring See Figure 30 Page 19 or Figure 31 Page 20 Transformer provides low voltage power source for controls Interconnect wire should be at least 18 awg See unit wiring diagram for interconnect di...

Page 44: ...Interconnect cored is required between indoor unit and wired wall control Refer to low voltage interconnect diagram See Figure 30 Page 19 Low Voltage Controls Cooling Only Units Cooling only units ut...

Page 45: ...t If supply voltage is different amperage changes 3kw 13 5 Amps 1 5kw 6 9 Amps Indoor unit contains electronic anti short cycle timer feature ASCT which prevents outdoor condenser from short cycling A...

Page 46: ...to unit disconnect wires from fuse link 2 With an ohmmeter check continuity across fuse link 3 If fuse link is open it must be replaced Two Stage Heating Two stage heating combines heat pump and elec...

Page 47: ...oved properly from unit after removal condensate pump Inspect all drain lines to insure there is no blockage preventing condensate removal Q How long will fan run A While unit is in cooling or heating...

Page 48: ...ensate Drain I D I D Branch Duct 5 5 Fresh Air Duct 1 x 2 3 x 3 FILTRATION Model 9 12 18 24 Type Washable Mesh Quantity 1 2 Efficiency 80 CONDENSATE PUMP Model 9 12 18 24 Maximum Head 36 0 9 m Min Flo...

Page 49: ...7 0 0 74 13 0 R410A S1CV4000 CAHV24 24 000 17 0 0 66 11 0 R410A Table 13 Heat Pump Systems CAHV Condenser Cassette Cooling Btuh Heating Btuh SEER HSPF SHR EER COP Ref S1HV9000 CAHV09 9 000 8 400 15 0...

Page 50: ...ir DB Cassette Entering Air WB Cassette Leaving Air DB Cassette Leaving Air WB Outdoor Section Entering Air Leaving Air Temperature Split Operating Pressures Compressor Suction PSIG Compressor Dischar...

Page 51: ...Notes 51...

Page 52: ...Phone 1 800 228 9364 Fax 1 800 232 9364 2201 Dwyer Avenue Utica NY 13501...

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