White Rodgers 1F51N-619 User manual

1F51N-619
LowVoltage
EvaporativeCoolerThermostat
INSTALLATION INSTRUCTIONS
PART NO. 37-6960A
0822
Operator: Save these instructions for future use!
This low voltage thermostat is designed to operate with
theWhite-Rodgers8A18Z-2EvaporativeCoolerControl.
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.
WARNING
!
If in doubt about whether your wiring is millivolt, line, or
low voltage, have it inspected by a qualified heating and
airconditioningcontractor,electrician,orsomeonefamil-
iar with basic electricity and wiring.
Do not exceed the specification ratings.
All wiring must conform to local and national electrical
codes and ordinances.
This control is a precision instrument, and should be
handled carefully. Rough handling or distorting compo-
nents could cause the control to malfunction.
Topreventelectricalshockand/orequipmentdam-
age, disconnect electric power to system, at main
fuse or circuit breaker box, until installation is
complete.
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.
Do not use on circuits exceeding 30 volts. Higher
voltagewilldamagecontrolandcouldcauseshock
or fire hazard.
PRECAUTIONS
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY
BEFOREINSTALLING OROPERATING THISCONTROL COULDCAUSE
PERSONAL INJURY AND/OR PROPERTY DAMAGE.
DESCRIPTION
SPECIFICATIONS
THERMAL DATA
Temperature Scale Range: 1 to 5 (Cooler to Warmer)
Differential: 1°F
ELECTRICAL DATA
Switch Rating: 24VAC (30VAC max.)
Cooling - 0 to 1.5 Amps
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
www.white-rodgers.com for location to send the product containing mercury.
CAUTION
!
White-Rodgers is a division
of Emerson Electric Co.
www.white-rodgers.com

2
ATTACH SUBBASE TO WALL
1. Route wires from the cooling equipment to the thermostat
location and pull wires through hole in wall so that 6 inches
of cable protrudes.
2. Pull wires through opening near center of subbase and
connect wires beneath terminal screws as shown under
wiring.
3. Pushexcesswiringintowallandplugholewithfire-resistant
material (such as fiberglass insulation) to prevent drafts
from affecting thermostat operation.
4. Fastensubbaselooselytowall,asshown,usingtwomount-
ing screws. Place a level against bottom of subbase, adjust
until level, and then tighten mounting screws to secure
subbase.
ATTACH THERMOSTAT TO SUBBASE
1. Removecoverfrom thermostatbasebygrippingthebasein
one hand. Use the other hand to pull gently at the top or
bottom of the cover.
2. Carefully remove the shipping protective packing from the
switch.
INSTALLATION
CAPTIVE
SCREW
CAPTIVE
SCREWS
THERMOSTAT
BASE
COVER
MOUNTING SCREWS
SUBBASE
Y G
W R
HI LO COOL
OFF
VENT
COOLING
ANTICIPATOR
THERMOSTAT
SUBBASE
FAN
HI LO
SYSTEM
OFF COOL VENT
SUBBASE SWITCH POSITIONS SYSTEM FUNCTION
FAN
TIMER
RELAY
FAN
SPEED
RELAY
PUMP
RELAY
COMPONENT OPERATION
NO FAN - NO PUMP - NO COOL
COOLING MODE - Pump relay and Fan timer relay energized by
thermostat.Water begins circulating on cooler pads, fan will start
on low speed after short time delay.*
VENT MODE - Fan timer relay energized by thermostat. Fan speed
relay is energized by fan switch in "HI" position. Fan will start on
high speed after short time delay.*
VENT MODE - Fan timer relay energized by thermostat. Fan
will start on low speed after short time delay.*
COOLING MODE - Pump relay and Fan timer relay energized by
thermostat. Fan speed relay is energized by fan switch in "HI"
position.Water begins circulating on cooler pads, fan will start on
high speed after short time delay.*
In "HI" position - No fan, but fan speed relay will
remain energized
Indicates switch position on thermostat subbase and
system function in operation.
* Fan timer relay energizes in approximately one minute.When
system shuts off, relay de-energizes in approximately 1/2 minute.
3. Attach thermostat base to subbase, being sure that all
captive screws are tightened snugly, since they serve as
electrical connections between thermostat and subbase.
4. Snapcoveron thermostatbaseandsettemperatureleverto
desiredsetting.Thethermostatscalehasnumbersfrom 1to
5.The lowernumbersrepresent coolertemperature andthe
higher numbers represent warmer temperature.
WIRING
Take care when securing and routing wires so they
do not short to adjacent terminals or rear of ther-
mostat. Personal injury and/or property damage
may occur.
All wiring should be installed according to local
and national electrical codes and ordinances.
Refer to instruction sheet for 8A18Z-2, Evaporative
Cooler Control for typical system hookup.
OPERATION
The chart below illustrates system and thermostat function during various modes of operation.
The Emerson logo is a
trademark and a service mark
of Emerson Electric Co.