© COPYRIGHT 2010 PECO, INC. ALL RIGHTS RESERVED.
P/N 70476 3220-2265 REV 01
11
InstallatIon
1. mounting location. Choose a location on an interior wall near the air return grille,
about fi ve feet above fl oor level, where air circulation is good and temperature is
average for the zone.
avoid mounting the indoor zone sensor in areas such as:
• Behind doors
• On outside walls, or any walls with unheated or uncooled areas behind the zone
sensor
• In direct sunlight, or near any source of radiant heat that could affect the
temperature measurements
• In line with the discharge air from the unit being controlled
2. mount subbase. Remove Zone Sensor cover from the subbase and mount subbase
on the wall or in a 2’ X 4” device box. Route the wires through the wire access hole in
the subbase (see Fig. 21). Seal the hole in the wall behind the subbase.
taBle 4. zone sensor maXImUm lenGth anD wIre sIze
Distance from Unit to control
recommended wire size
000 - 150 feet
22 gauge
151 - 240 feet
20 gauge
241- 385 feet
18 gauge
386 - 610 feet
16 gauge
611 -970 feet
14 gauge
wIrInG
1. run wires. Run wires between the thermostat wallplate and the Zone Sensor subbase.
2. connect wires. Connect the wiring to the terminals, S1 and SC, at the thermostat
wallplate (see Fig. 22).
note: See TABLE 1 for terminal designations for the Indoor Remote Zone Sensor.
3. replace cover. Place Zone Sensor cover back on the subbase, and snap it securely
into place.
4. Go to service menu 170. Select option “01” to enable the Indoor Sensor (see Fig. 23).
Figure 21.
Mounting the
SP155-017
Indoor Temperature
Zone Sensor
Device box mounting
Wall mounting
Terminal S1
Terminal SC
Figure 22.
Wiring terminal
designations for
SP155-017
Indoor Remote
Zone Sensor.
Figure 23.
Service Menu
170 allows
the user
to enable
the Indoor
Remote Zone
Sensor.
caUtIon: Keep wires separate and routed away from any source of
noise such as motors, fl uorescent lights, and other wiring.
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