Robertshaw 9520 DIGITAL NON-PROGRAMMABLE Thermostat Manual
IMPORTANT SAFETY INFORMATION
WARNING:
- Always turn off power at the main power source by unscrewing fuse or switching circuit breaker to the OFF position before installing, removing, cleaning, or servicing thermostat.
- Read all of the information in this manual before installing or pro- gramming this thermostat
- This is a 24V AC low-voltage thermostat. Do not install on voltages higher than 30V AC.
- All wiring must conform to local and national building and electrical codes and ordinances.
- Do not short (jumper) across terminals on the gas valve or at the system control to test installation. This will damage the thermostat and void the warranty
Robertshaw 9520 Features
- Multi-stage heating and cooling control
- Zone system compatible as a master thermostat
- Multi-colored LED indicators for system status
- Low battery indicator.
- Fahrenheit/Celsius display option.
- Adjustable from 45°F (4°C) to 90°F (32°C).
- Accuracy within ± 1 degree.
- Adjustable temperature differential: 1-3 degrees F.
- Automatic heating shutdown if temperature exceeds 90°F (32(C).
Robertshaw 9520 Installation
Step 1: Replacing Existing Thermostat
- Turn off power to heating and cooling system.
- Remove cover of old thermostat to expose wires. (Figure 1)
-
Disconnect wires one at a time from existing terminals. USE ENCLOSED LABELS TO MARK EXISTING WIRES. Refer to cross refer- ences in Table 1 if existing wiring does not directly match the labels.
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If you have any questions about cross referencing the old terminal to the new label, reference your equipment installation manual, a licensed contractor, or call Robertshaw Tech Support (800) 445-8299
-
-
Remove existing thermostat base from wall.
Table 1
|
Old Terminal |
New Label |
Description |
|
R, V-VR or VR-R |
R |
24 VAC Return |
|
Y, Y1 or M |
Y |
Stage 1 Cooling/Heating Circuit |
|
O or R |
O |
Reversing Valve (Cooling Mode) |
|
B |
B |
Reversing Valve (Heating Mode) |
|
F or G |
G |
Fan Control Relay |
|
Y2 |
Y2 |
2nd Stage Cooling Circuit |
|
W1 or W2 or W-U |
W2 |
2nd Stage Heating Control |
|
L or X |
L |
System Monitor LED |
|
E |
E |
Emergency Heating Circuit |
|
C, X or B |
C |
24 VAC Transformer Common Side |
Step 2: Installing Model 9520 Thermostat
NOTE: FOR NEW INSTALLATIONS, MOUNT THERMOSTAT ON INSIDE WALL, 4-5 FEET ABOVE THE FLOOR. DO NOT INSTALL BEHIND A DOOR, IN A CORNER, NEAR AIR VENTS, IN DIRECT SUNLIGHT, OR NEAR ANY HEAT OR STEAM GENERATING FIXTURES. INSTALLATION AT THESE PLACES WILL AFFECTS THERMOSTAT OPERATION.
- Turn off power to the heating and cooling systems.
- Place COOL-OFF-HEAT-EM
- Place AUTO-ON switch into AUTO position.
- Remove the cover using a coin or screwdriver
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- location. Make surewires will feed through opening on base of thermostat.
- Mark placement of mounting holes. See Figure 3. Set base aside.
- Drill the marked holes using a 3/16" drill bit. NOTE: Enclosed plastic anchors do not require a drilled hole for drywall.
- Tap plastic anchors into the wall.
- Align base with plastic anchors and feed wires through opening.
- Secure base to wall with supplied screws.
- Terminal screws are loosened. Insert wires into terminal strip (Figure 4) matching the label to the corresponding terminal (see Wiring Diagrams below). Tighten screws.
Readmore and Download Robertshaw 9520 DIGITAL NON-PROGRAMMABLE Thermostat Manual
| Title | : Robertshaw 9520 DIGITAL NON-PROGRAMMABLE Thermostat Manual |
| Format | |
| Pages | : 11 Pages |
| Language | : English |
| File Size | : 1 MB |
