White Rodgers 37-5785B Instrucciones De Instalación

FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALL-
ING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND/OR
PROPERTY DAMAGE.
This control is a dual-function control having a temperature regulating
control in series with a high-limit control.
The temperature control is a SPDT switch which opens on a rise in
temperature and will control one or two heating elements.
THIS CONTROL MUST BE INSTALLED BY A QUALIFIED INSTALLER.
All wiring must conform to local and national electrical codes and or-
dinances.
This control is a precision instrument, and should be handled carefully.
Rough handling or distorting components could cause the control to
malfunction.
This control has been accurately calibrated at the factory. Any attempt to
re-calibrate this control will void the White-Rodgers warranty.
WARNING
!
Do not use on circuits exceeding specified voltages. Higher voltages
will damage control and could cause shock or fire hazard.
If in doubt about whether your wiring is millivolt, low or line voltage,
have it inspected by a qualified heating and air conditioning
contractor or a licensed electrician.
AC ELECTRICAL RATINGS
UL and CSA recognized for resistive loads.
Temp Control
30 amps
25 amps
12.5 amps
INSTALLATION
All wiring must conform to local and national electrical codes
and ordinances.
Connect in accordance with wiring diagrams provided by the equipment
manufacturer. If none are provided, the following represents a typical
installation.
L1 L2
1 3
2 4
Factory
4
1
Installed
Jumper
2
NOTE: Terminal 4
not used
Heating Element
Single Element Circuit for Full
Power Disconnect Through Both
Power Conductors
Voltage Limit Control
120-250 VAC 40 amps
277 VAC 40 amps
480 VAC 25 amps
Wiring
L1 L2
Double Element Limited
Demand Circuit for Full
Power Disconnect Through
1 3
Both Power Conductors
2 4
Factory
4
Installed
1
Jumper
2
Upper Heating
Element
1
Additional
Type 755-1
2
Temperature
Control
Lower Heating
Element
www.white-rodgers.com
www.emersonclimate.com
Electric Water Heater Control
INSTALLATION INSTRUCTIONS
The limit control is a normally closed DPST switch which opens on a
rise in temperature to limit the maximum allowable temperature. It has
manual reset.
Both switches are calibrated to meet the requirements for typical resi-
dential type storage tank water heaters.
To prevent electrical shock and/or equipment damage, disconnect
electric power to system at main fuse or circuit breaker box until
installation is complete.
Label all wires prior to disconnection when servicing controls.
Wiring errors can cause improper and dangerous operation.
Following installation or replacement, follow appliance
manufacturers' recommended installation/service instructions
to insure proper operation.
Temperature Ratings:
Temperature control - Variable 90° to 150°F (32° to 66°C)
Limit control - Fixed 170°F (77°C) with manual reset
Adjust temperature setting by inserting a screwdriver into open slot and
turning pointer to desired temperature on dial.
Wiring Diagram for Typical
Two-Element Residential
Electric Storage Water
Heater, Non-Simultaneous
Operation.
756-50
DESCRIPTION
PRECAUTIONS
CAUTION
!
SPECIFICATIONS
SETTING THE DIAL
Adjustment Slot
150°F 90°F
66°C 32°C
125°F/52°C
PART NO. 37-5785B
Replaces 37-5785A
1310