background image

62-0135

8

Q7300A,C,D,G SERIES 2000 COMMERCIAL THERMOSTAT SUBBASES

Home and Building Control
Honeywell Limited-Honeywell Limitée
155 Gordon Baker Road
North York, Ontario
M2H 2C9

62-0135   J.H.   Rev. 12-96

Fig. 17. Typical hookup of T7300D,F/Q7300G in three-stage heat and three-stage cool conventional system.

Mounting Thermostat on Subbase

Mount the thermostat on the subbase after the subbase is
installed.

Engage tabs at the top of the thermostat and
subbase. Fig. 18.

Press lower edge of case to latch.

NOTE:

To remove the thermostat from the wall,
first pull out at the bottom of the thermo-
stat; then remove the top.

IMPORTANT

Refer to the thermostat installation instructions for
Installer Setup, Settings, Installer Self-Test and
Troubleshooting information.

Fig. 18 Mounting thermostat on subbase.

M4824A

B.

  

PRESS LOWER EDGE OF CASE TO LATCH.

A.

  

ENGAGE TABS AT TOP OF THERMOSTAT AND SUBBASE OR WALLPLATE.

Home and Building Control
Honeywell Inc.
Honeywell Plaza
P.O. Box 524
Minneapolis, MN 55408-0524

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

JUMPER RC TERMINAL TO RH TERMINAL WHEN INSTALLED ON A SYSTEM WITH ONE TRANSFORMER.

USE A1 AND A2 WHEN THE CONTACTS SHOULD BE NORMALLY CLOSED IN OCCUPIED MODE.  USE A2 AND A3 WHEN CONTACTS
SHOULD BE NORMALLY OPEN IN OCCUPIED MODE.

CONNECT GND TO EARTH GROUND.

INSTALL FIELD JUMPER BETWEEN X4 AND X TO POWER LEDS.

USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS.

1

1

1

4

6

M4949A

2

2

3

4

5

6

3

5

HEAT
RELAY 3

W2

L1
(HOT)

L2

FAN
RELAY

Y1

G

X

SUBBASE

RC

RH

C1

T

T7147 REMOTE COMFORT ADJUST MODULE

GND

W1

C2

L1
(HOT)

L2

COMPRESSOR
CONTACTOR 1

C4

C3

C5

CA1

T

CA2

CA4

CA3

CA5

T

T

Y2

COMPRESSOR
CONTACTOR 2

HEATING 
TRANSFORMER

COOLING
TRANSFORMER

W3

Y3

HEAT
RELAY 2

COMPRESSOR
CONTACTOR 3

A2 A3

A1

X3

X1

X4

EQUIPMENT

MONITOR 2

EQUIPMENT

MONITOR 1

ECONOMIZER

AS

AS

DISCHARGE
AIR
SENSOR

HEAT
RELAY 1

www.honeywell.com/building/components

Summary of Contents for Q7300A

Page 1: ...le for your application 3 Installer must be a trained experienced service technician 4 After completing installation use these instructions to check out the product operation Location Subbase without Remote Mounted Temperature Sensor Install the thermostat about 5 ft 1 5m above the floor in an area with good air circulation at average temperature See Fig 1 Do not install the thermostat where it ca...

Page 2: ... IMPORTANT To avoid electrical interference which can cause erratic performance keep wiring runs as short as possible and do not run thermostat wires adjacent to the line voltage electrical distribution systems Use shielded cable Belden type 8762 or equivalent for 2 wire and Belden type 8772 or equivalent for 3 wire The cable shield must be grounded only at the controlled equipment case Fig 2 Two ...

Page 3: ...g screws Fig 7 Mounting the subbase WIRING SUBBASE All wiring must comply with local electrical codes and ordinances Follow equipment manufacturer wiring instructions when available Refer to Fig 9 through 17 for typical hookups A letter code is located near each terminal for identification CAUTION Disconnect power before wiring to prevent electrical shock or equipment damage 쐃 Loosen the terminal ...

Page 4: ...POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED JUMPER RC TERMINAL TO RH TERMINAL WHEN INSTALLED ON A SYSTEM WITH ONE TRANSFORMER 1 1 1 2 2 POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED JUMPER RC TERMINAL TO RH TERMINAL WHEN INSTALLED ON A SYSTEM WITH ONE TRANSFORMER CONNECT GND TO EARTH GROUND INSTALL FIELD JUMPER BETWEEN X4 AND X TO POWER LED...

Page 5: ...TH ONE TRANSFORMER 1 1 1 2 2 POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED JUMPER RC TERMINAL TO RH TERMINAL WHEN INSTALLED ON A SYSTEM WITH ONE TRANSFORMER USE A1 AND A2 WHEN THE CONTACTS SHOULD BE NORMALLY CLOSED IN OCCUPIED MODE USE A2 AND A3 WHEN THE CONTACTS SHOULD BE NORMALLY OPEN IN OCCUPIED MODE CONNECT GND TO EARTH GROUND INSTALL FIELD JUMPER BETWEEN X4 AND X T...

Page 6: ...CONTACTOR 1 C4 C3 C5 CA1 T CA2 CA4 CA3 CA5 T T TRANSFORMER E HEAT RELAY 2 HEAT CHANGEOVER VALVE X3 X1 X4 EQUIPMENT MONITOR 2 EQUIPMENT MONITOR 1 FAN RELAY COOL CHANGEOVER VALVE A2 A1 AS AS DISCHARGE AIR SENSOR ECONOMIZER POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION INSTRUCTIONS USE A1 AND A2 WHEN THE CONTACTS ARE NORMALLY CL...

Page 7: ... X2 L EQUIPMENT MONITOR 2 EQUIPMENT MONITOR 1 FAN RELAY COOL CHANGEOVER VALVE EM MODE POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED USE A1 AND A2 WHEN THE CONTACTS SHOULD BE NORMALLY CLOSED IN OCCUPIED MODE USE A2 AND A3 WHEN THE CONTACTS SHOULD BE NORMALLY OPEN IN OCCUPIED MODE CONNECT GND TO EARTH GROUND INSTALL FIELD JUMPER BETWEEN X4 AND X TO POWER LEDS USE ECONOMIZ...

Page 8: ...ABS AT TOP OF THERMOSTAT AND SUBBASE OR WALLPLATE Home and Building Control Honeywell Inc Honeywell Plaza P O Box 524 Minneapolis MN 55408 0524 POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED JUMPER RC TERMINAL TO RH TERMINAL WHEN INSTALLED ON A SYSTEM WITH ONE TRANSFORMER USE A1 AND A2 WHEN THE CONTACTS SHOULD BE NORMALLY CLOSED IN OCCUPIED MODE USE A2 AND A3 WHEN CONTAC...

Reviews: