WHITE-RODGERS
TYPE 2B61 & 2B62
SNAP ACTION
REMOTE BULB THERMOSTAT
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
Type 2B61 and 2B62 Remote Bulb Thermostats are designed for use on a wide variety of heating equipment and appliances, and are especially suitable for electric heating. Extremely com- pact in size, these
When the temperature of the liquid or air surrounding the bulb rises, the switch contacts open to turn off the heat. When the temperature drops the contacts close to turn on the heat.
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 components could cause the control to malfunction.
PRECAUTIONS
CAUTION
To prevent electrical shock and/or equipment damage, disconnect electric power to system at main fuse or circuit breaker box, until installation is complete.
SPECIFICATIONS
Switch Action: Open on rise, | Electrical Rating |
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Contact Structure: |
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| INDUCTIVE RATING |
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Type 2B61: – Single Pole |
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TYPE | RATING | FULL LOAD | LOCKED ROTOR | |||||||
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Type 2B62: – Double Pole | NUMBER |
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120V | 240V | 120V | 240V | 120V |
| 240V | ||||
Maximum Ambient: |
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| 2B61 | 25A | 25A | 10A | 6A | 60A |
| 36A | ||
Temperature Switch: 150°F (66°C) |
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| 2B61 | – | 25A | 10A | 6A | 60A |
| 36A | ||
INSTALLATION
NOTE
These controls have been accurately calibrated at the factory. Any attempt to calibrate these controls voids the
The switch mechanism of this control may be mounted in any location, provided that the temperature and humidity of the air in which it is located do not cause a condensation on the switch parts.
If the equipment manufacturer has made provisions for location of the switch and control bulb, follow his instructions. If none are provided, the following general rules should be observed:
1.The control bulb should be located in an area of average temperature of the medium being controlled.
When used to sense air temperature (as in an electric heater) the bulb should be located so that the return air to the heater flows freely over the bulb. The bulb should be fas- tened away from the cabinet of the heater so that it senses air temperature, and not cabinet temperature.
When used to control a liquid bath, be sure that the bulb is fully immersed in the liquid. Also be sure that the bulb is located where it can sense average temperature of the liquid.
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EMERSON ELECTRIC CO. |
| PART NO. |
9797 REAVIS RD., ST. LOUIS, MO. | 63123 | |
(314) | Printed in U.S.A. | Replaces |
9999 HWY. 48, MARKHAM, ONT. L3P 3J3 | 9523 |
(905) |