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Q7300A,C,D,G SERIES 2000 COMMERCIAL THERMOSTAT SUBBASES
Fig. 5. Five T7047G Sensors providing
temperature averaging network for
T7300/Q7300 Thermostat/Subbase.
Fig. 6. Nine T7047C Sensors providing
temperature averaging network for
T7300/Q7300 Thermostat/Subbase.
Mounting Subbase
The subbase mounts horizontally on the wall or a 2 in. x 4 in.
wiring box. Position the subbase horizontally on the wall or
on a 2 in. x 4 in. wiring box.
³ Position and level the subbase or wallplate (for
appearance only). The thermostat functions properly
even when not level.
· Use a pencil to mark the mounting holes. See Fig. 7.
» Remove the subbase or wallplate from the wall and
drill two 3/16 inch holes in the wall (if drywall) as
marked. For firmer material such as plaster or wood,
drill two 7/32 inch holes. Gently tap anchors (pro-
vided) into the drilled holes until flush with the wall.
¿ Position the subbase over the holes, pulling wires
through the wiring opening.
´ Loosely insert the mounting screws into the holes.
² Tighten mounting 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.
³ Loosen the terminal screws on the subbase and
connect the system wires. See Fig. 8.
IMPORTANT
Use 18-gauge, solid-conductor color-coded
thermostat cable for proper wiring. If using 18-
gauge stranded wire, no more than ten wires can
be used. Do not use larger than 18-gauge wire.
· Securely tighten each terminal screw.
» Push excess wire back into the hole.
¿ Plug the hole with nonflammable insulation to
prevent drafts from affecting the thermostat.
Fig. 8. Proper wiring technique.
M4841
TT
SUBBASE
T
T
T7047G
T
T
T7047G
T
T
T7047G
T
T
T7047G
T
T
T7047G
M4842
TT
TT
SUBBASE
T7047C
TT
T7047C
TT
T7047C
TT
T7047C
TT
T7047C
TT
T7047C
TT
T7047C
TT
T7047C
TT
T7047C
M4826
FOR WRAPAROUND
INSERTION STRIP
7/16 IN. (11 MM).
FOR STRAIGHT
INSERTION STRIP
5/16 IN. (8 MM).
WIRES
THROUGH WALL
WALL
WALL
ANCHORS
(2)
M10237
LEDS
MOUNTING
HOLES
MOUNTING
SCREWS