Honeywell T812A1002 - Mechanical Thermostat Скачать руководство пользователя страница 5

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68-0148—1

T8131A,B,C; T8132A,B,C

INSTALLATION

Fig. 8—2-wire heat-only application (jumper
intact).

Fig. 10—4-wire heat/cool application (jumper
intact).

W Y G

B D

A C

2-WIRE HEAT-ONLY (JUMPER INTACT)

M1709B

L1
(HOT)

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

HEATING
RELAY OR
VALVE COIL

JUMPER

W Y G

B D

A C

4-WIRE HEAT/COOL (JUMPER INTACT)

L1
(HOT)

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

JUMPER

HEATING
RELAY OR
VALVE COIL

M1710B

COOLING
CONTACTOR
COIL

FAN
RELAY

Fig. 9—3-wire cool-only application (jumper
intact).

Fig. 11—5-wire heat/cool application (jumper
removed).

W Y G

B D

A C

3-WIRE COOL-ONLY (JUMPER INTACT)

L1
(HOT)

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

JUMPER

M848A

COOLING
CONTACTOR
COIL

FAN
RELAY

W Y G

B D

A C

5-WIRE HEAT/COOL (JUMPER REMOVED)

L1
(HOT)

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

M1711B

L1
(HOT)

COOLING
CONTACTOR
COIL

FAN
RELAY

HEATING
RELAY OR
VALVE COIL

Содержание T812A1002 - Mechanical Thermostat

Страница 1: ...re control Four daily energy saving programs Available in taupe and Premier White Compatible with most 24 Vac standing pilot gas electronic ignition oil or central electric systems T8131 Models Only Powered directly from 24 Vac system transformer Greenlightemittingdiode LED lightswhenprop erly connected Two AA alkaline batteries for backup power recommended T8132 Models Only Requires two AA alkali...

Страница 2: ...he listed specifications Also this product is tested and calibrated under closely controlled condi tions and some minor differences in performance can be expected if those conditions are changed MODELS T8131A T8132A Programmable Thermostats Provide eight program keys with keyboard door T8131B T8132B Programmable Thermostats Provide eight program keys without keyboard door T8131C T8132C Programmabl...

Страница 3: ...seboard Electric 120 240 Line Volt No Heat pumps Multistage Equipment No Not compatible with any 120 240 volt circuit Not designed for steam or gravity systems a Compatiblewith2 wireHoneywellzonevalves Isolating relay required for 3 wire thermostats for zone valves Not compatible with 2 wire White Rodgers no 1361 Valves WARNING ELECTROCUTION HAZARD CAN CAUSE PROPERTY DAMAGE SEVERE INJURY OR DEATH ...

Страница 4: ...ired number of wires to the thermostat location check the appropriate wiring diagram Refer to Figs 8 through 11 for typical wiring diagrams In 5 wire installations only be sure to remove the fac tory installed jumper connecting terminals R and Rc Fig 4 Proper wiring technique Fig 5 3 wire heat only application Fig 7 5 wire heat cool application Fig 6 4 wire cool only application C R W Y G B A 3 WI...

Страница 5: ...NNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED 1 JUMPER HEATING RELAY OR VALVE COIL M1710B COOLING CONTACTOR COIL FAN RELAY Fig 9 3 wire cool only application jumper intact Fig 11 5 wire heat cool application jumper removed R Rc W Y G B D A C 3 WIRE COOL ONLY JUMPER INTACT L1 HOT L2 POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED 1 JUMPER M848A COOLING CONTACTOR COIL FAN...

Страница 6: ...e indicator starts flashing If the batteries are not replaced sometime during the flashing bAt Lo indicator the indi cator will eventually stop flashing When the batteries are almost completely dead bAt Lo will stay on without flashing to indicate the thermostat and heating cooling system have stopped working The thermostat will not function after the batteries are completelydead andthe bAtLo indi...

Страница 7: ...dge of the case to latch INSTALL TWO AA ALKALINE BATTERIES AS SHOWN M1713 Fig 15 Mounting the thermostat on the subbase M9366 B PRESS LOWER EDGE OF CASE TO LATCH FOR T8131A C AND T8132A C SWING OPEN COVER CHECK OPERATION A ENGAGE TABS AT TOP OF THERMOSTAT AND MOUNTING PLATE NOTE IMPORTANT Although the thermostat has a low battery indicator replace the batteries once a year to pre vent the thermost...

Страница 8: ...o permanently change a program repeat steps in Heat ing Program or Cooling Program section as applicable To Return to the normal program or the start program press Run Program T8131B AND T8132B MODELS Set Current Time Day To set time press and release Clock Day once then press Time or until current time displays To set day press and release Clock Day again and then press Time or until current day ...

Страница 9: ...ck Guide for Operating or Making Changes NOTE System switch must be set to Heat or Cool to perform the following To temporarily change the temperature for the current period only press Warmer or Cooler The temperature will cancel itself at the next scheduled change To cancel sooner press Run Program To hold a temperature indefinitely press Hold Temp then Warmer or Cooler To cancel press Run Progra...

Страница 10: ...ture The heating equipment should shut off Cooling A C B For T8131 models only before continuing check that the green LED is lit indicating the thermostat is powered properly To avoid possible compressor damage do not operate the cooling system when outside temperature is below 50 F 10 C See compressor manufacturer instructions for further information NOTE When cooling setting is changed thermosta...

Страница 11: ...l not go T8131 T8132 lower than 45 F 7 C or higher The temperature setting limit has been reached The setting range is 45 F than 88 F 31 C during to 88 F 7 C to 31 C programming Heating will not come on T8131 Check that green LED is lit T8132 If display is blank or says bAt Lo install fresh batteries T8131 T8132 Check that switch on thermostat is set to HEAT Check the system fuse or circuit breake...

Страница 12: ...ent setting does Check that the wiring hole in the wall behind the wallplate has been plug not match the display temperature ged with insulation to prevent drafts that might adversely affect thermostat operation Be aware that it is normal for the current setting and display temperature to differ occasionally T8131A B C T8132A B C TROUBLESHOOTING CROSS REFERENCE Cross Reference T8131 T8132 CROSS RE...

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