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IM 1014/Page 46
for fan continuous operation or is dependant upon connection
to the fan supply input . When internally wired for fan
continuous operation, the fan will be off when the system
switch is off. When dependant upon external connections the
fan may not be off with the system switch in the off position.
The fan supply input is switched to fan speed outputs (HI -
MED - LO).
SWITCHED POWER: L1 power is switched to this output any
time the system switch is out of the OFF position.
Ratings
Wire Lead Colors (if applicable)
Application Notes
1
To use a remote sensor, remove jumper JP-1 to disable
local sensing. See
Figure 1
. Failure to remove JP-1 when
using a remote sensor will cause improper operation of
the thermostat. Some units do not have remote sensing
capability.
2
Units with remote sensing capability have a four-position
terminal block at TB1. If TB1 is two position the unit is
local sensing only.
3
Remote probe wiring should be located away from any
electrical motors or power wiring
4
Some units are internally wired for permanent fan
continuous operation.
5
On units with a Fan Supply input, the operation of the
fan is determined by wiring connection. For fan
continuous, jumper the Fan Supply input (TB2-5) to the
Switched Power output (TB3-3).
6
For fan cycling operation with a call for heat or cool, a
fan relay must be used.
7
Observe electrical ratings. Thermostatic outputs are pilot
duty only.
Wiring Diagrams
Figure 2: Units with remote sensing capability
Figure 3: Units with switches used for local sensing only
Figure 4: Units with no switches with local/remote sensing
capability
Figure 5: Units with no switches used for local sensing
only
Table 1: Fan and system switches
Voltage
Rating
Inductive
Resistive
Amps
Pilot
Duty
Thermostatic
Switching
FLA
LRA
24 VAC
N.A.
N.A.
N.A.
24 VA
10 VA
120
5.8
34.8
6.0
125 VA
20 VA
240
2.9
17.4
5.0
125 VA
20 VA
277
2.4
14.4
4.2
125 VA
20 VA
White with Orange Stripe
Fan High
White with Red Stripe
Fan Med.
White with Brown Stripe
Fan Low
Red
Heat
Blue
Cool
Black
L1
Yellow
L2 or Neutral
Orange
Switched Power
Violet
Fan Supply
Brown
Remote Probe
Brown
Remote Probe
1
2
4
3
1
2
3
5
1
2
3
4
TB1
TB2
TB3
TB1-2
NO CONNECTION
REMOTE PROBE 2
REMOTE PROBE 1
L2 or NEUTRAL
TB1-3
TB1-4
TB1-1
FAN
COOL
OUTPUT
HEAT
OUTPUT
TB2-3
FAN HIGH
FAN LOW
FAN MED
L1
FAN SUPPLY
TB2-2
TB2-1
TB2-4
TB2-5
TB3-3
CONNECT
FOR FAN
CONTINUOUS
TB3-2
TB3-1
SWITCHED POWER
5
1
2
3
1
2
5
1
2
3
4
TB1
TB2
TB3
NO CONNECTION
L2 or NEUTRAL
TB1-3
TB1-4
FAN
COOL
OUTPUT
HEAT
OUTPUT
TB2-3
FAN HIGH
FAN LOW
FAN MED
L1
FAN SUPPLY
TB2-2
TB2-1
TB2-4
TB2-5
TB3-3
CONNECT
FOR FAN
CONTINUOUS
TB3-2
TB3-1
SWITCHED POWER
TB3-1
COOL
OUTPUT
HEAT
OUTPUT
1
2
4
3
1
2
3
TB1
TB3
L1
TB3-3
TB3-2
TB1-2
NO CONNECTION
REMOTE PROBE 2
REMOTE PROBE 1
L2 or NEUTRAL
TB1-3
TB1-4
TB1-1
COOL
OUTPUT
HEAT
OUTPUT
1
2
3
1
2
TB1
TB3
L1
TB3-3
TB3-2
TB3-1
NO CONNECTION
L2 or NEUTRAL
TB1-3
TB1-4
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