Peco RW205 Installation Manual page 2

PART I: RW205 RECEIVER WIRING AND MOUNTING
Figure 4.
RW205 Receiver
backplate and
mounting screws.
wiring passage
1. Remove the RW205 front cover.
2. Select input power by changing RW205 voltage selection switch: Select "24V" if input
power is 24 VAC; select "110/277V" if input power is line voltage (see Fig.3, p.1).
▲
WARNING: Setting the voltage selection switch in the incorrect position
!
will damage or destroy the RW205.
3. Pull equipment wires through the RW205 wiring passage (see Fig.4).
4. Drill holes appropriately in the mounting surface.
5. Mount the RW205 using the enclosed mounting screws. Tighten screws evenly.
Note: This instruction does not apply if mounting behind a PTAC wall cutout.
6. Connect equipment wire to the RW205 terminals:
a. Match equipment wire to RW205 terminals (see "RW205 Wiring Examples" below).
b. Loosen screw terminals.
c. Insert wires into the appropriate terminals (see Fig.5).
d. Re-tighten screw terminals.
7. Cap off any unused wires or terminate properly according to local building codes.
8. Reattach the RW205 front cover (see Fig.4).
Figure 5. RW205 numbers on
terminal block correspond to
RW205 Wiring Examples.
11 10 9
RW205 Wiring Examples
System Type 0 (1H/1C)
TERM Name Function
1 C 24VAC 2/L2
2 R 24VAC 1/L1
3 Y1 Cooling
4 W1 Heat
5 G1 Fan Low
6 G2 Fan Medium
7 G3 Fan High
8 OA Outside Air
System Type 3 (2H/ 1C)
TERM Name Function
1 C 24VAC 2/L2
2 R 24VAC 1/L1
3 Y1 Cool
4 W1 Heat 1
5 G1 Fan Low
6 G2 Fan Medium
7 G3 Fan High
8 W2 Heat 2
NOTE: ALL ELECTRICAL LOADS MUST BE CONNECTED TO L2.
© COPYRIGHT 2010 PECO, INC. ALL RIGHTS RESERVED.
1 2 3 4 5 6 7 8
System Type 1 & 2 (1H/1C Heat Pump)
TERM Name Function
1 C 24VAC 2/L2
2 R 24VAC 1/L1
3 Y1 Compressor Cool*
4 Y2 Compressor Heat*
5 G1 Fan Low
6 G2 Fan Medium
7 G3 Fan High
8 O/B Reversing Valve
*Note: In the Heat Pump mode, use
jumper wire to connect terminals 3 and 4.
System Type 4 (1H/ 2C)
TERM Name Function
1 C 24VAC 2/L2
2 R 24VAC 1/L1
3 Y1 Cool 1
4 W1 Heat
5 G1 Fan Low
6 G2 Fan Medium
7 G3 Fan High
8 Y2 Cool 2
▲
WARNING: DO NOT connect the following optional accessories
!
to high voltage/24VAC circuits.
These optional accessories are also available from PECO.
PECO Optional Accessories RW205
TERM Function
9 Sensor Common
10 Setback Input
11 Remote Probe Input
Fan Coil Systems
The RW205 can control fan coil systems; however, the RW205 Receiver is not equipped
with internal seasonal changeover capability.
Setback
The RW205 Receiver SETBACK INPUT is a low-level switchable input that is normally open.
When the switch is closed, the system is in setback mode. In setback mode, the heating and
cooling setback limits are used as temperature control points and fan operation is cycled
with demand at the lowest speed. Pressing any button on the TW205/206 Thermostat will
override the setback for 1 hour.
Setback function is enabled via the Service Menu on the TW205/206 Thermostat:
• To enable setback function: Set Service Menu #14 to "1."
• To specify the Heating setback limit: Access Service Menu #6 and scroll to desired
temperature.
• To specify the Cooling setback limit: Access Service Menu #7 and scroll to the
desired temperature.
NOTE: Setback may be triggered automatically or manually. See "System Button
Operation" section of the Wave Wireless Operating Manual for more information.
PART II: TW205/TW206 THERMOSTAT WIRING AND MOUNTING
This instruction assumes that the installer will use pre-existing wires found at the location
of the previously-installed thermostat.
Mounting Location
The TW205/TW206 is intended for indoor installation only. It should be mounted on an
inner wall, in a location with freely circulating air, where it will be responsive to changes
in room temperature. Avoid mounting thermostat near heat generating appliances (i.e.
TV, heater, refrigerator) or in direct sunlight.
Power Options
• TW205/TW206 will operate on 24 VAC power and/or two AA alkaline batteries.
Where possible, the thermostat should be operated on 24 VAC power with battery
backup.
• To avoid electrical shock or damage to equipment, disconnect all power before
installing this thermostat.
1. Remove the front cover of old thermostat (remove old thermostat if applicable).
2. Before removing wires from old thermostat, label each wire with the terminal
designation from which it was attached.
3. Disconnect the wires from the old thermostat one at a time. Do not let wires fall back
into the wall.
4. Remove backplate from the wall after all wires are labeled. If old thermostat has a wall
mounting plate, remove both of these as an assembly.
5. Use the level to mark the backplate mounting position.
6. Mark positions of the screw holes (two at minimum) with a pencil.
7. Drill holes at pencil-marked locations (3/16" for drywall, 7/32" for plaster).
8. Insert the wall anchors in the holes. Use a hammer to gently tap anchors into holes.
9. Mount the TW205/TW206 Thermostat backplate (see Fig. 6).
Attach wires to the TW205/TW206 Thermostat backplate.
10. Using a small fl athead screwdriver, loosen the screws on the terminal block, located on
the backplate, to allow the wires to be easily inserted.
11. Strip the insulation of each wire at a proper length (about 1/4" or 64 cm).
2
TW205/TW206
Thermostat
backplate,
mounting screws.
P/N 70218 3220-2230 REV 0
Figure 6.