1F51N-619
LowVoltage
EvaporativeCoolerThermostat
INSTALLATION INSTRUCTIONS
Operator: Save these instructions for future use!
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY
BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE
PERSONAL INJURY AND/OR PROPERTY DAMAGE.
DESCRIPTION
This low voltage thermostat is designed to operate with
the White-Rodgers 8A18Z-2 Evaporative Cooler Control.
For versatility, the thermostat subbase has a System
Switch that lets you select VENT, COOL or OFF posi-
tions. The Fan Switch offers the selection of LOW or
HIGH fan speed.
PRECAUTIONS
If in doubt about whether your wiring is millivolt, line, or
low voltage, have it inspected by a qualified heating and
air conditioning contractor, electrician, or someone famil-
iar with basic electricity and wiring.
CAUTION
!
Topreventelectricalshockand/orequipmentdam-
age, disconnect electric power to system, at main
fuse or circuit breaker box, until installation is
complete.
Do not exceed the specification ratings.
All wiring must conform to local and national electrical
codes and ordinances.
Do not short out terminals on gas valve or primary
control to test. Short or incorrect wiring will burn
out heat anticipator and could cause personal
injury and/or property damage.
This control is a precision instrument, and should be
handled carefully. Rough handling or distorting compo-
nents could cause the control to malfunction.
WARNING
!
Do not use on circuits exceeding 30 volts. Higher
voltagewilldamagecontrolandcouldcauseshock
or fire hazard.
SPECIFICATIONS
THERMAL DATA
ELECTRICAL DATA
Temperature Scale Range: 1 to 5 (Cooler to Warmer)
Switch Rating: 24VAC (30VAC max.)
Cooling - 0 to 1.5 Amps
Differential:
1°F
Switch Action: SPST - Snap Action switch
ATTENTION!
This product does not contain mercury. However, this product may replace a unit which contains mercury. Do not open mercury cells. If a
cell becomes damaged, do not touch any spilled mercury. Wearing non-absorbent gloves, take up the spilled mercury with sand or other
absorbent material and place into a container which can be sealed. If a cell becomes damaged, the unit should be discarded. Mercury must
not be discarded in household trash. When the unit this product is replacing is to be discarded, place in a suitable container and refer to
White-Rodgers is a division
of Emerson Electric Co.
PART NO. 37-6960A
0822
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