Honeywell Q674J Скачать руководство пользователя страница 3

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69-0268—11

T874G,R MULTISTAGE HEAT PUMP THERMOSTATS AND Q674F,J,L SUBBASES

FALL

RISE

L1
(HOT)

RISE

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.

TERMINAL LABELED C/X ON SOME MODELS.

W3 TERMINAL ON SOME MODELS ONLY.

C1 ANTICIPATOR

H1 ANTICIPATOR

FAN SWITCH

AUTO

SYSTEM
SWITCH

AUTO

HEAT

OFF

COOL

AUX. HT. RELAY

FAN RELAY

EM. HT. RELAY

B RELAY

M5986A

THERMOSTAT

SUBBASE

SYSTEM COMPONENTS

COMPRESSOR
CONTACTOR

EM. HT.

EM. HT.
LED (RED)

AUX. HT.
LED (GREEN)

COOL CHANGEOVER
VALVE

FALL

H2
ANTICIPATOR

AUX HT. RELAY

Fig. 3. Internal schematic and typical hookup for T874G/Q674F in heat pump system. Includes AUX. HT. and EM.

HT. LEDs.

Содержание Q674J

Страница 1: ...ions for the specific meaning The SYSTEM LED lights when the system is calling for heating or cooling The AUX HT LED lights when the auxiliary heat second stage is operating Auxiliary heat operates when the heat pump alone cannot handle the load The EM HT LED lights when the system switch is placed in the EM HT position Emergency heat is operating in most systems the compressor has failed and the ...

Страница 2: ...he assembly includes an adapter ring two screws and a cover plate to cover marks on the wall Install the ring and cover plate on the vertical outlet box For a wall installation hold the subbase in position and mark holes for the anchors See Fig 2 Obtain wall anchors locally Take care that the wires do not fall back into the wall opening Set aside the subbase Drill four 3 16 in 5 mm holes and gentl...

Страница 3: ...E MODELS ONLY C1 ANTICIPATOR H1 ANTICIPATOR FAN SWITCH AUTO ON SYSTEM SWITCH AUTO HEAT OFF COOL 1 2 4 6 8 9 10 O W2 X E L B W3 R G Y AUX HT RELAY FAN RELAY EM HT RELAY B RELAY M5986A THERMOSTAT SUBBASE SYSTEM COMPONENTS 11 12 COMPRESSOR CONTACTOR EM HT EM HT LED RED AUX HT LED GREEN COOL CHANGEOVER VALVE H2 FALL H2 ANTICIPATOR AUX HT RELAY Fig 3 Internal schematic and typical hookup for T874G Q674...

Страница 4: ...ND E TERMINALS THERMOSTAT SUBBASE SYSTEM COMPONENTS H1 ANTICIPATOR H2 ANTICIPATOR C1 ANTICIPATOR SYSTEM SWITCH FAN SWITCH AUTO ON OFF EM HT AUTO EM HT RELAY COOL CHANGEOVER VALVE COMPRESSOR CONTACTOR M1629 1 2 4 6 8 9 10 Y C X E W1 R G O AUX HT LED YELLOW CHECK LED RED SYSTEM LED GREEN 4R HPS 4R 5R 4R 4R SEQ 1 SEQ 2 3R FAN RELAY Fig 4 Internal schematic and typical hookup for T874G Q674J in heat p...

Страница 5: ... COMPONENTS H1 C1 ANTICIPATOR H2 ANTICIPATOR SYSTEM SWITCH FAN SWITCH AUTO ON OFF HEAT EM HT COOL FAN RELAY EM HT RELAY COOL CHANGEOVER VALVE COMPRESSOR CONTACTOR M1628A COMPRESSOR FAILURE C815A OUTDOOR THERMISTOR SYSTEM LED GREEN CHECK LED RED AUX HT LED YELLOW 2 3 4 5 6 11 12 RESET Y T C X E W1 R G O Fig 5 Internal schematic and typical hookup for T874R Q674L in heat pump system with outdoor res...

Страница 6: ...4R 5R HPS 4R 4R C815A OUTDOOR THERMISTOR SYSTEM LED GREEN EM HT LED RED W1 AUX HT LED YELLOW Fig 6 Internal schematic and typical hookup for T874R Q674L in heat pump system with outdoor reset Includes AUX HT EM HT and SYSTEM LEDs C1 H1 H1 C1 ANTICIPATOR FALL H2 ANTICIPATOR L1 HOT L2 1 1 POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED H2 FALL FAN RELAY EM HT RELAY B RELAY ...

Страница 7: ...LVE COMPRESSOR MONITOR FAN RELAY H2 FALL H1 ANTICIPATOR C ANTICIPATOR H2 ANTICIPATOR POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED REMOVE JUMPER WHEN W1 RELAY IS USED FACTORY INSTALLED JUMPER 1 M5067 FAN SWITCH AUTO ON SYSTEM SWITCH EM HT HEAT OFF COOL 3 2 2 3 THERMOSTAT SUBBASE SYSTEM COMPONENTS 1 2 3 4 5 6 11 Fig 8 Internal schematic and typical hookup for T874R Q674L...

Страница 8: ...AUX HT LED GREEN EM HT LED RED FAN SWITCH ON AUTO SYSTEM SWITCH EM HT HEAT OFF COOL H2 FALL H1 FALL C1 2 3 4 5 6 H1 C1 ANTICIPATOR H2 ANTICIPATOR 1 POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED AUXILIARY HEAT LED AVAILABLE ON SOME MODELS THERMOSTAT SUBBASE SYSTEM COMPONENTS 2 2 Fig 9 Internal schematic and typical hookup for T874R Q674L in heat pump system Includes EM H...

Страница 9: ...ve the thermostat cover by pulling the bottom edge of the cover outward and away from the base until it snaps free of the retaining posts NOTE The cover is hinged at the top and must be removed by pulling the bottom edge outward and away from the base 쐇 Carefully remove and discard the polystyrene packing insert that protects the mercury switches during shipment 쐋 Turn over the thermostat base and...

Страница 10: ...LED RED 2 4R SEQ 1 4R 2 HPS 4R 5R 4R EM HT RELAY SEQ 2 3R G O FAN RELAY CHANGEOVER RELAY SYSTEM LED GREEN H1 C1 Fig 11 Internal schematic and typical hookup for T874R Q674L in heat pump system Includes AUX HT CHECK and SYSTEM LEDs Fig 13 Wiring connections SPIRIT LEVEL MOUNTING HOLES 2 M927 TOP MOUNTING HOLES 2 WIRING TERMINAL THERMOSTAT CABLE OPENING TO SPRING FINGER CONTACTS ON THE THERMOSTAT UP...

Страница 11: ...0 F 10 C Refer to manufacturer recommendations Move the system switch on the subbase to COOL Move the setpoint lever cooling lever on T874G on the thermo stat about 10 F 6 C below the room temperature Cooling and fan should start Move the lever cooling lever on T874G about 10 F 6 C above the room temperature Cooling and fan should stop Emergency Heat Move the system switch on the subbase to EM HT ...

Страница 12: ...ent recalibrate the thermostat thermometer see step 4 쐏 Insert a small screwdriver in the thermometer shaft Fig 16 and turn it until the thermometers read the same When the thermometer is calibrated replace cover and place into operation NOTE Radiant heat from your hands will offset the thermometer reading After making each adjustment wait five or ten minutes for the thermometer to stabilize befor...

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