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62-0135
2
Q7300A,C,D,G SERIES 2000 COMMERCIAL THERMOSTAT SUBBASES
Fig. 1. Typical location of thermostat or remote-mounted sensor.
Install the remote-mounted sensor(s) about 5 ft (1.5m)
above the floor in an area with good air circulation at
average temperature. See Fig. 1.
Do not mount the sensor(s) where it can be affected by:
— drafts, or dead spots behind doors and in corners.
— hot or cold air from ducts.
— radiant heat from sun or appliances.
— concealed pipes and chimneys.
— unheated (uncooled) areas such as an outside wall
behind the thermostat.
If more than one remote sensor are required, they must be
arranged in a temperature averaging network consisting of
two, three, four, five or nine sensors. See Fig. 2 through 6.
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 T7047G Sensors providing
temperature averaging network for
T7300/Q7300 Thermostat/Subbase.
Fig. 3. Two T7047C Sensors and one T7047G Sensor
providing temperature averaging network for
T7300/Q7300 Thermostat/Subbase.
Fig. 4. Four T7047C Sensors providing
temperature averaging network for
T7300/Q7300 Thermostat/Subbase.
5 FEET
(1.5 METERS)
YES
NO
NO
NO
M4823A
M4838
TT
SUBBASE
T
T
T7047GT7047G
T
T
M4839
TT
SUBBASE
TT
T7047C
TT
T7047C
TT
T7047G
M4840
TT
TT
SUBBASE
T7047C
TT
T7047C
TT
T7047C
TT
T7047C