Digital Non-Programmable Multistage Thermostat (3 Heat/2 Cool) Zoom

Digital Non-Programmable Multistage Thermostat (3 Heat/2 Cool)


Brand: Robertshaw

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Application: Heat Pump
Multi Stage (Heat/Cool)
3 Heat/2 Cool Heat Pump
Programmability: Non-Programmable
User Interface: Push Button
Mount: Horizontal
Options: Fan Control
Password Lockout
Large Display
Auto Changeover
Changeover: Auto
Operating Temp Range: 45-95F

Description for Robertshaw RS4320

The Robertshaw RS4000 thermostat family is Simply the Right Choice when it comes to automated temperature controls. With the comfort, convenience, and efficiency features that homeowners and contractors want, the RS4000 family provides custom program options in value-packed thermostats for an affordable price.


  • Pop-Up Wizard
  • Automatic changeover
  • Circulating Fan
  • Worry-Free memory retention
  • Easy change battery
  • Large back lit display
  • Filter change reminder
  • Low battery indicator
  • Fahrenheit and Celsius displays
  • Dual power
  • Adjustable 1st stage temperature differential: 0.5 F Degrees to 3.0 F Degrees (0.5 C Degrees to 1.5 C Degrees)
  • Accuracy within ±1 F Degree
  • Universal staging on multi-stage units
  • Automatic heating shutdown if temperature exceeds 99°F (37°C)
  • Keypad security lockout
  • User settable Hi and Lo temperature limits

Digital Non-Programmable Multistage Thermostat (3 Heat/2 Cool)


by PowerReviews
RobertshawDigital Non-Programmable Multistage Thermostat (3 Heat/2 Cool)

(based on 1 review)

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Reviewed by 1 customer

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thermostat okay, documentation wrong

By idler

from Massachusetts

Verified Buyer

Comments about Digital Non-Programmable Multistage Thermostat (3 Heat/2 Cool):

this replaces another Robertshaw thermostat which failed after three years usage. While the warrantee is 5 years, one has to return the thermostat for service - so one has to buy another thermostat to use - so the warrantee is effectively useless.
The RS4620 documentation has many errors and omissions. There is no mention of what happens when the fault signal comes on; there is no description of the extra cover on the thermostat and how / if to remove it. The table listing signals asserted under various conditions is full of errors....etc.
Fingers crossed that this thermostat will last longer than the previous one ; oh for the good old days when a thermostat lasted 30 years or more.

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