RAB20 Series Two-pipe Fan Coil Room Thermostat Technical
Instructions
Document Number 155-526P25
March 2, 2007
Siemens Building Technologies, Inc.
Page 5
Drywall Mounting
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. Remove sub-base from back of thermostat.
4. Using the sub-base (packed with thermostat) as a template, mark the hole locations
with a pencil.
5. Drill two 1/4-inch diameter holes for plastic wall anchors (provided).
6. Using a mallet, tap in the plastic wall anchors flush with wall.
7. Pull the wiring through the opening in the upper portion of the sub-base.
8. Level mounting plate.
9. Using the two wood screws provided, fasten sub-base to wall. Thermostat is not
position sensitive.
10. Pull the wiring through the sub-base.
11. Position thermostat housing over the two mounting lugs located at the top of the
sub-base and press down on cover until bottom lugs snap in place.
12. Terminate wires per wiring instructions on the inside of thermostat cover.
Optional:
To set limit stops, remove gray tabs located on the setpoint knob and
position high and low stops around perimeter of knob as required. See Figure 2.
20
70
15
60
65
55
10
50
25
75
80
30
Cº
30
28
26
24
22
20
18
16
14
12
10
8
La
ndis
& Staefa
85ºF
TH0625R1
Figure 2. Setpoint Limit Stops.
13. Place all thermostat switches in the “down” position to allow cover switch sliders to
fit over the switches.
14. Insert the top of the thermostat cover into the slots located on the top of the
thermostat and press down.
15. Tighten the two screws at the bottom of the thermostat.
16. Return selector switches to the normal position. Adjust setpoint dial to desired
setting.
The installation is now complete.
