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Robertshaw 9420 User Manual

Robertshaw 9420
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DIGITAL
NON-PROGRAMMABLE
THERMOSTAT
9420
HEAT PUMP
H
NeW
2 Heat / 2 Cool
User's Manual
Quick Start
Installation
Application
The Robertshaw 9420 is a multi-stage thermostat designed to control
24 VAC heat pump systems.
Features
Summer and winter setpoints
•Large back lit display
Adjustable 1
st
stage temperature differential: 0.5°F to 3.0°F
(0.5°C to 1.5°C)
Adjustable 2
nd
stage temperature differential: 1°F to 6°F
(0.5°C to 3.0°C)
Adjustable 2
nd
stage delay (10-40 min.)
Compressor short cycle protection
•Accuracy within ±1°
Zone system compatible as a master thermostat
Permanent memory retention
Fahrenheit/Celsius display option
Adjustable from 45°F to 90°F (7°C - 32°C)
Quick wire terminal block
Automatic heating shutdown if temperature exceeds 94°F (34°C)
1
110-1044B

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Robertshaw 9420 Specifications

Electrical Specifications IconElectrical Specifications
electrical rating24 Volt AC (18-30 VAC)
maximum load per terminal1 amp
total maximum load3 amp
Temperature Control IconTemperature Control
temperature control range45˚- 90˚F (7˚- 32˚C)
accuracy+/-1˚F (+/-.5˚C)
power24 VAC
Shipping Information IconShipping Information
individual carton dimensions6.75" x 4.375" x 1.625"
master carton dimensions9.25" x 5.625" x 7.625"
master carton weight4.0 lbs.

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