Accessory List

T500 Series
224
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Accessories
Typical Applications
Figure 1 T511/T511F, 2-Pipe Heating & Cooling With Changeover Switch.
Figure 2 T511/T511F, 2-Pipe Cooling.
Model No. Description
WP500 5-1/2 x 5-1/2” (140 x 140 mm) adapter plate.
680-243 Auto seasonal changeover switch.
PIN 500 Dial stop pin.
1 2 3 4
FAN
MOTOR
LOW
MED
HI
5 6 7 8
L2 OR NEUTRAL
L1 (HOT)
ON OFF
H
H
M
L
VALVE
If heating is desired,
replace the cooling valve
with a heating valve and
connect input to terminal 5