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JUMPER
WiRE
t
@_®__..._____@'-'__ t ._o_.__
T .
I I ,L
_
_4WC!lI_0_
For 2-wire
Heat only,
I
--
--
_
Neutral
attach to RH and W
I
TRANSFORMER
Figure 2. Typical wiring
diagram for
heat only,
3-wire, single transformer
systems
JUMPER
WiRE
TRANSFORMER
Figure 3. Typical wiring diagram for
cool only, 3-wire, single transformer
systems
W
RED jumper wire (provided
with thermostat)
must be I
connected
between
thermostat
RH and RC terminals
_ JUMPER
I for proper thermostat
operation
with this system.
I
WIRE
._ ®__..._. _.5__ __,___"__z
TRANSFORMER
Figure 4. Typical wiring diagram for
heat/cool, 4-wire, single transformer systems
)
w
_ _ ".."2 E TAT
4VAC sYsTE_°t
T
_
Neutral
J
TRANSFORMER
24VACl I 1412gVAC
Neutral
COOLING
TRANSFORMER
Figure 5. Typical wiring
diagram for
heat/cool,
5-wire, two-transformer
systems
JUMPER
JUMPER
WIRE
WIRE
___dl_ _ ___g_
,_. ___o_s_,_
Iooo: _o_o_
I_
_.._
_
_
24VACU
_C
* Reversing
valve is energized when the
_.___Neutral
system switch is in the COOL position
TRANSFORMER
Figure 6. Typical wiring
diagram for heat pump
with reversing
valve energized in COOL
JUMPER
JUMPER
WIRE
WIRE
-r- _--- ---T s_szEM
)mpressor
I ran I
I
"ontaotor
I_Relay_
_
_
_4_c U _
* Reversing
valve is energized
when the
I
I
Neutral
system switch is in the HEAT position
TRANSFORMER
Figure 7. Typical wiring diagram for heat pump
with reversing valve energized in HEAT
:_ The 24 Volt neutral connection to terminal C on the thermostat is not required if the batteries are replaced once a year
with fresh "AA" Energizer _ alkaline batteries.
Heating
System
1. Move SYSTEM
switch to HEAT position. If the heating
system has a standing pilot, be sure to light it.
2. Press (_) to adjust thermostat setting above room tempera-
ture. The heating system should begin to operate.
3. Press (_)
to adjust temperature
setting below room tem-
perature. The heating system should stop operating.
Cooling
System
To prevent compressor and/or property damage, if the
outdoor temperature
is below 50°F, DO NOT operate
the cooling system.
1. Move SYSTEM switch to COOL position.
2. Press
(_)
to adjust thermostat setting below room tem-
perature. The blower should come on immediately on high
speed, followed by cold air circulation
3. Press (_
to adjust temperature setting above room tem-
perature. The cooling system should stop operating.
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