Honeywell TC300 Commercial Thermostat Instruction Manual
TC300 COMMERCIAL THERMOSTAT
3. Position and level the wallplate along the wall and
mark the drilling location using a pencil.
WARNING
Ensure that Thermostat power connections only use R
and C terminals. COM should only be used for analog
inputs/outputs. Failure to follow these instructions may
result in Thermostat operational and communication
failures or equipment damage.
4 x 5/16”
(8mm)
4 x 5/32”
(4mm)
Drilling location for
wall mounting
Wiring opening
Mounting wallplate on the drywall
Mount the wallplate vertically on the wall. It supports 14-
26AWG (0.2-1.5mm2 for solid or stranded, max 2.5mm2 for
solid) wires.
2 - 3/8”
(60.3mm)
NOTE: If you are using a TC300 Deco plate for thermostat
mounting, refer to the Deco plate pocket guide
(31-00657) also.
3 - 1/4”
(82.75mm)
(junction
box screw holes)
(junction box
screw holes)
1. At the bottom of the thermostat, loosen the Security
screw using a screwdriver by turning it counterclock-
wise direction.
Drilling location for wall mounting
Wallplate
Fig. 5. Wallplate drilling locations
4. Remove the wallplate and drill two pilot holes on the
wall, on the marks. For drywall, drill 3/16” (5mm)
holes. For firmer material such as plaster, drill 7/32”
(6mm)holes.
5. Gently tap anchors (provided in the kit) into the pilot
holes until flush with the wall.
6. Pull the wires through the wiring opening of the wall-
plate and position the wallplate over the mounting
holes. See Fig. 8 Wiring.
Security
screw
7. Insert the screws into the holes and tighten (screw
torque 0.1Nm).
Fig. 3. Loosen the security screw
Mounting the wallplate on the
junction box (optional)
TC300 can support vertical mounting of US 2"x4" junction
box, vertical and horizontal mounting of 75*75mm, 86*86
and European round(ø71 for German and ø75 for French)
junction boxes.
2. Before mounting the wallplate, make sure that the
thermostat wires are stripped to the length marked
on the wallplate.
NOTE: Use TC300 Deco plate for mounting if you are not
using US 2”*4” or UK 75*75mm junction boxes.
Refer to the Deco plate pocket guide (31-xxxxxx).
1. Install the junction box and perform the wiring as per
its manufacturer’s instructions.
Fig. 4. Wire strip length
UK, ME
FRENCH, GERMAN
USA, CANADA
CN
Fig. 6. Various junctions boxes
2. Before mounting the wallplate, make sure that the
thermostat wires are stripped to the length marked
on the wallplate.
3
31-00642-01 | Rev. 10-23
| General | Details |
|---|---|
| Name | Honeywell TC300 Commercial Thermostat Instruction Manual |
| Make | Honeywell |
| Language | English |
| Filetype | PDF (Download) |
| File size | 1.42 MB |
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