White Rodgers 21D28-6 Evaporative Cooling Kit Installation Instruction

Page of 4
WARNING
!
To prevent electrical shock and/or equipment
damage, disconnect electric power to system, at
main fuse or circuit breaker box, until installation
is complete.
Do not use on circuits exceeding specified volt-
age. Higher voltage will damage control and could
cause shock or fire hazard.
www.white-rodgers.com
8A18Z-2
Evaporative Cooler Control
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY
BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE
PERSONAL INJURY AND/OR PROPERTY DAMAGE.
PART NO. 37-5918C
Replaces 37-5918B
0720
DESCRIPTION
Operator: Save these instructions for future use!
INSTALLATION INSTRUCTIONS
PRECAUTIONS
This Evaporative Cooler Control has a rain-proof enclo-
sure and can be used with either 120 VAC or 240 VAC
systems. It was designed for use with White-Rodgers
1F51-619, 1F51W-619, or 1D51W-632 Thermostats to
provide automatic temperature and ventilation control
and remote fan speed selection of an evaporative cooler
with 2-speed fan. The pump relay is automatically oper-
ated to allow wetting of cooler pads before starting fan.
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 familiar
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.
CAUTION
!

Summary of Contents of installation instruction for White Rodgers 21D28-6 Evaporative Cooling Kit

  • Page 1 8A18Z-2 Evaporative Cooler Control INSTALLATION INSTRUCTIONS Operator: Save these instructions for future use! FAILURE TO READ AND FOLLOW ALL...
  • Page 2SPECIFICATIONS Electrical Ratings: Combined Total Connected Load: Input Voltage: 120 or 240 VAC, 60 Hz. 16 FLA., 120 VAC Operating...
  • Page 3INSTALLATION (cont’d) 5. Select an appropriate location for mounting the con- All wiring should be done in accordance with local...
  • Page 4 TECH SUPPORT HELP LINE: 1-800-284-2925 White-Rodgers is a division of Emerson Electric Co. The Emerson logo is a trademark...