Lennox Variable Speed Air Handlers CBX32MV Скачать руководство пользователя страница 15 | Manualshive

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Page 15

CBX32MV SERIES

SENSOR

(CENTER SIDE−T0 −SIDE)

9−PIN

CONNECTOR

SECURING
SCREWS

AIR
HANDLER
CONTROL

AIR HANDLER CONTROL
L−BRACKET MOUNTING PLATE

19 IN.

(483 MM)

5−1/2 IN.

(140 MM)

9−PIN CONNECTOR

ELECTRIC HEAT RELAY

PART NO. 49W91

22V DIRECT CURRENT COIL

30 AMP CONTACT RATING

FASTEN THE PROBE

BRACKET TO THE

PLENUM WITH TWO

SELF−TAPPING SHEET

METAL SCREWS.

CONNECT WIRES TO DISCHARGE AIR SENSOR

TERMINAL ON AIR HANDLER CONTROL.

PLENUM

CBX32MV AIR HANDLER CONTROL

PART NO. 50W28

DISCHARGE SENSOR

(DAT)

TEMP RESISTANCE
ºF

(OHMS)

30

34,566

40

26,106

50

19,904

60

15,313

70

11,884

80

9,298

90

7,332

100

5,826

DETAIL A

NOTE EVENHEAT MODE CANNOT BE ENABLED WITH
HARMONY III DUE TO EACH CONTROL REQUIRING ITS OWN
DISCHARGE AIR SENSOR.

THE AIR HANDLER CONTROL (AHC) HAS
TWO SCREW TERMINALS MARKED
DISCHARGE AIR SENSOR. THE SENSOR
IS REQUIRED FOR EVENHEAT
OPERATION, IS FIELD−MOUNTED AND
MUST BE ORDERED SEPARATELY
(CATALOG # 88K38).

DETAIL B

TEMPERATURE RESISTANCE

CHART

NOTE − Due to varying duct designs
and airflow conditions, relocation of the
discharge sensor may be required to
insure accurate sensing.

Figure 15. Component Connections

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13
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17
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Содержание Variable Speed Air Handlers CBX32MV

Страница 1: ...HANDLER 506274 01 06 11 Supersedes 01 11 RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE Table of Contents Shipping and Packing List 1 Upflow Downflow Unit Dimensions 2 Horizontal LH RH Unit Dimensions...

Страница 2: ...5 8 16 5 8 16 LOW VOLTAGE RIGHT SIDE LINE VOLTAGE LEFT SIDE DOWNFLOW POSITION 1 25 UPFLOW POSITION CONDENSATE DRAINS 2 UPFLOW AND DOWNFLOW FILTER ACCESS FILTER ACCESS H G H G LINE VOLTAGE INLETS TOP...

Страница 3: ...SIDE 5 3 8 137 4 3 8 111 LIQUID LINE SUCTION LINE SUPPLY AIR OPENING FILTER LOW VOLTAGE INLETS TOP AND LEFT SIDE END VIEW BLOWER B C D COIL 3 4 19 3 4 19 3 4 19 RETURN AIR OPENING F E 5 8 16 5 8 16 5...

Страница 4: ...jurisdiction before installation Check equipment for shipping damage if found immediately report damage to the last carrier Installation Clearances Cabinet 0 inch 0 mm To Plenum 1 inch 25 mm To Outlet...

Страница 5: ...embled to facilitate setting the unit Follow the steps below To disassemble 1 Remove access panels 2 Remove both blower and coil assemblies This will lighten the cabinet for lifting 3 Remove one screw...

Страница 6: ...HIGH HUMIDITY AREAS For horizontal applications in high humidity areas remove the downflow rail closest to the drain pan To remove rail 1 Remove the screws from the rail at the back of unit and at th...

Страница 7: ...d in figure 4 detail A 5 Remove horizontal drip shield screw located in the left center of the back coil end seal as illustrated in figure 4 detail A 6 Rotate horizontal drip shield 180 front to back...

Страница 8: ...zontal drip shield from the corrugated padding between the blower and coil assembly NOTE Discard the corrugated padding and the downflow drip shields from the foam pads on top of the unit The shields...

Страница 9: ...ownflow Combustible Base Dimensions Brazing Connections WARNING Polyol ester POE oils used with HFC 410A refrigerant absorb moisture very quickly It is very important that the refrigerant system be ke...

Страница 10: ...NOTE REFRIGERANT LINE SETS SHOULD BE ROUTED TO ALLOW FILTER ACCESSIBILITY NOTE CBX32MV SERIES UNITS USE NITROGEN OR DRY AIR AS A HOLDING CHARGE IF THERE IS NO PRESSURE WHEN THE RUBBER PLUGS ARE REMOVE...

Страница 11: ...o debris has fallen into the drain pan during installation that may plug up the drain opening MAIN DRAIN Connect the main drain and route downward to drain line or sump Do not connect drain to a close...

Страница 12: ...QUIRES A LARGER INSTALLATION SPACE THAN THE J TRAP 91P90 Figure 13 Typical Main and Overflow Drain Installations Inspecting and Replacing Filters IMPORTANT Filter access door must be in place during u...

Страница 13: ...iring must conform to the current National Electric Code ANSI NFPA No 70 or Canadian Electric Code Part I CSA Standard C22 1 and local building codes Refer to following wiring diagrams See unit namepl...

Страница 14: ...Page 14 Figure 14 CBX32MV Air Handler Unit Typical Wiring Diagram...

Страница 15: ...ROL PART NO 50W28 DISCHARGE SENSOR DAT TEMP RESISTANCE F OHMS 30 34 566 40 26 106 50 19 904 60 15 313 70 11 884 80 9 298 90 7 332 100 5 826 DETAIL A NOTE EVENHEAT MODE CANNOT BE ENABLED WITH HARMONY I...

Страница 16: ...DS DH G R Y1 W2 W1 R Y1 L C Heat Pump or Air Conditioner Control Y2 i W O i DS R C i i R C i i OUTDOOR UNIT THERMOSTAT R C i i Outdoor sensor for outdoor temperature display Optional OUTDOOR AIR SENSO...

Страница 17: ...NCE POINTS COMFORTSENSE T 7000 R R R W3 H W2 W2 W1 W1 W1 O O O L L Y1 Y1 Y1 Y2 Y2 G G C C C T T D B Y2 DS O D SENSOR X2658 Y2 OUT BL 1 1 CUT ON BOARD LINK R O CUT ON BOARD LINK R DS WHEN DEHUMIDIFICAT...

Страница 18: ...T 47W97 IS REQUIRED WHEN CONNECTING THE COMFORTSENSE 7000 CATALOG Y0349 WITH THE LSOM 2 RESISTOR KIT NOT REQUIRED WHEN USING COMFORTSENSE 7000 CATALOG Y2081 Figure 19 Control Field Wiring Cooling Appl...

Страница 19: ...P8 Position Function Description 1 Heat stage 1 relay coil 2 Heat stage 2 relay coil 3 Relay coil return 4 Heat stage 3 relay coil 5 Heat stage 4 relay coil 6 Heat stage 5 relay coil 7 L1 230VAC supp...

Страница 20: ...ED 1 2 3 4 1 2 3 4 1 2 3 4 COOLING HP MODE STANDARD HEAT MODE STAGED BY TSTAT STANDARD HEAT MODE DEFAULT 85 110 115 130 HEATING MODE BLOWER SPEED ELECTRIC HT MODE 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 LOW S...

Страница 21: ...in AUTO Humidification position H terminal is energized whenever indoor blower is running 2 EvenHeat Target Discharge Air Temperature selection is used to set discharge air temperatures for EvenHeat...

Страница 22: ...to stop DISPLAY An on board single character LED display see figure 21 for LED display location indicates general system status information such as mode of operation indoor blower CFM and error codes...

Страница 23: ...andler model size and capacity Blinking 1 When the correct Unit Sized Code is displayed RELEASE push button Selected code will flash for 10 second period 2 During ten second period HOLD push button un...

Страница 24: ...k wheel etc Indoor blower motor over temperature motor trip on internal protector Discharge air temperature sensor DATS out of range Restricted airflow Indoor blower motor is running at a reduced CFM...

Страница 25: ...580 1380 650 1545 730 NORM 1120 530 1215 575 1315 620 1400 660 975 460 1125 530 1275 600 1400 660 1010 475 1185 560 1200 565 1265 595 900 425 1000 470 1135 535 1265 595 CBX32MV 048 AND CBX32MV 060 BLO...

Страница 26: ...ow thermostat demand BASIC MODE Only active on a Y1 thermostat demand Normal Operation 1 On On On Acceptable 24 VAC High 100 ComfortSenset 7000 thermostat energizes Y1 and de energizes D on a call for...

Страница 27: ...set point Dehumidification call 2 On On On On Demand 0 VAC High 70 Dehumidification call ONLY 1 On On On On Demand 0 VAC High 70 ComfortSenset 7000 thermostat will keep outdoor unit energized after c...

Страница 28: ...l heating demands the indoor blower will run for an additional 10 seconds before de energizing No Yes NOTE If the call for lower heat section is removed AHC will automatically de energize higher heat...

Страница 29: ...number for each different air handler model for three seconds Yes No IMPORTANT Field replacement controls may need to be manually configured to validate air handler unit size code AIR HANDLER MODEL CB...

Страница 30: ...matically detect number of electric heat sections Electric heat section may be wired to energize more than one element 2 AHC waits for maximum of ten seconds to detect electric heat 22 volt DC relay c...

Страница 31: ...two Y1 and Y2 W1 and or W2 Heat Pump First and Second Stage First Electric Heat Section H1 Heat Pump First and Second Stage First Electric Heat Section Sec ond Electric Heat Section H2 if number of e...

Страница 32: ...Delay Timer Finished or last change was up stage Delay Timer Finished or last change was down stage Above Turn OFF Electric Heat Section Adjust Target Discharge Air Temperature Turn ON one Electric He...

Страница 33: ...and heat pump 2 Set Blower Adjust Selection jumper pin 3 Set Cooling Mode Blower Ramping jumper pin Cooling calls All ramping profiles are active Heating calls Only ramping profiles 1 and 2 are activ...

Страница 34: ...or blower per ramping profile No Yes AHC on board link must be cut between Y1 and Y2 to allow 2 stage cooling operation Air Handler Control AHC Indoor Blower Mode Speed and Profiles settings 1 Set Coo...

Страница 35: ...appears then release button To clear error codes stored in memory continue to hold push button while the solid three horizontal bars are displayed Release button when solid is displayed Solid c start...

Страница 36: ...e for servicing S Has an auxiliary pan been provided under the unit with separate drain for units installed above a finished ceiling or in any installation where condensate overflow could cause damage...

Страница 37: ...ue to fall the circuit between R and W1 is completed by the second stage heat room thermostat Circuit R W1 energizes a heat sequencer The completed circuit will energize supplemental electric heat if...

Страница 38: ...ide and outside of the cabinet can cause condensation on the inside or outside of the cabinet which leads to sheet metal corrosion and subsequently component failure REPAIRING DAMAGED INSULATION Areas...

Страница 39: ...Disposable filters should be replaced with a filter of the same type and size NOTE If you are unsure about the filter required for your system call your Lennox dealer for assistance 3 Reusable Filter...

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