Technical Instructions
RAB20 Series Two-pipe Fan Coil Room Thermostat
Document Number 155-526P25
March 2, 2007
Page 6
Siemens Building Technologies, Inc.
4 × 4-inch Electrical Wall
Box Mounting
An ARG70 wall plate adapter (provided with electrical wall box mount models) is
required to mount an RAB… thermostat to a 4 × 4-inch electrical wall box.
1. Loosen the two screws at the bottom of thermostat.
2. Lift the bottom of the thermostat cover from the thermostat base and push up to
remove cover.
3. Using the four screws provided, fasten wall box adapter (3) to plaster ring (2),
supplied by others.
4. Pull wires through plaster ring (2).
5. Flex adapter mask (4) and snap in place inside wall box adapter (3).
6. Fasten sub-base (5), included with thermostat, to wall box adapter assembly (3)
and (4) with the two screws provided.
7. Follow
Drywall Mounting
Steps 7 through 16.
The installation is now complete.
TH0634R1
2
1
3
4
5
7
6
Figure 3. 4 × 4-inch Electrical Wall Box Installation.
1
Electrical wall box
2 Plaster
ring
3
Wall box adapter *
4
Adapter mask *
* Included with ARG70
5 Sub-base
6 Thermostat
base
7 Thermostat
cover
