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INSTALLATION
Mounting Options
The RW205 receiver has three options for mounting:
• Mounting on a standard 2" x 4" device box. The RW205 backplate contains mounting
slots for vertical installation. See Figure 1 below.
• Mounting on the inside surface of a PTAC wiring enclosure. Mount through device box
holes with (2) sheet metal screws. See Figure 1 below.
• Mounting behind a cutout in a PTAC wall. The RW205 backplate incorporates screw
bosses capable of supporting the part behind a cutout in the PTAC enclosure. See
Figure 2 below. A cut-out template for this type of installation is included in your RW205
package.
Mounting screw
Front cover
Mounting screw
Fig.1. Surface-Mount Installation
Mounting screw
Front cover
Mounting screw
Fig. 2. Sandwich-Mount Installation
Wiring and Mounting Instructions
1. Remove the RW205 Front Cover.
2. To select input power, position the voltage selection switch on the RW205 to "24V" if input
power is 24 VAC, or to "110/277V" if input power is line voltage. Refer to "RW205 with
Front Cover Removed" fi gure on Page 1.
3. Pull equipment wires through the RW205's wiring passage.
4. Mount the RW205 using the enclosed mounting screws. Tighten screws evenly but do
not overtighten. NOTE: This instruction does not apply if mounting behind a PTAC wall
cutout.
5. Connect equipment wire to the RW205 terminals:
a. Match equipment wire to the RW205 terminals, referencing the appropriate wiring
/diagram below. See the "Application Notes" section of these instructions for further
instructions for single-stage, multi-stage, heat pump, and fan coil applications.
b. Loosen screw terminals.
c. Insert wires into the appropriate terminals.
d. Re-tighten screws.
6. Cap off any unused wires or terminate properly according to local building codes.
7. Re-attach the RW205 Front Cover. See Figure 2 for proper confi guration if mounting
behind a PTAC wall cutout.
© COPYRIGHT 2009 PECO, INC. ALL RIGHTS RESERVED.
L1
L2
Fig. 3. Terminal Wiring – Single-Stage Systems (1 Heat, 1 Cool)
RW205 Body
Mounting surface
SECOND STAGE
HEAT OR COOL
Fig. 4. Terminal Wiring – Multi-Stage Systems (2 Heat, 1 Cool or 1 Heat, 2 Cool)
RW205 Body
COMPRESSOR
Cut-out in
PTAC enclosure
REVERSING VALVE
Mounting surface
Fig. 5. Terminal Wiring – Heat Pump Systems
Fig. 6. Accessories Wiring
CONFIGURATION AND WIRELESS CONNECTION
To operate the HVAC equipment, the RW205 receiver must receive instructions from a
TW205 or TW206 thermostat. The thermostat display enables access to the Service Menu
to perform the confi guration and wireless connection.
After wiring and mounting of the RW205 is complete, refer to the document "TW205 / TW206
Installation & Operating Instructions" for confi guration and wireless connection instructions.
COOL
(MAIN OUTPUT)
HEAT
(SECONDARY OUTPUT)
FAN LOW
FAN MEDIUM
FAN HIGH
(OS/RV) OUTSIDE AIR/
REVERSING VALVE
L2
L1
COOL
COOL1
HEAT
HEAT 1
LOW
MED
To FAN Wiring
HIGH
OA
L2
L1
COOL
HEAT
LOW
MED
To FAN Wiring
HIGH
OA
P/N 69566 3220-2240 REV 0 PAGE 2
1
2
3
LINE
4
VOLTAG
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
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