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Touchscreen Thermostat, 4H, 2C, w/Interface

Low Voltage T-Stat, Touchscreen Programmable With Equipment Interface Module, Stages Heat 4, Stages Cool 2, Temp Settings per Day 4, Programs per Week 7, System Switching Heat-Off-Cool-Auto-Emergency, Fan Switching Auto-On-Circulate, Color White, Display LCD, Backlit, Green Screen, For Use With Whole House Dehumidifier Or Air Conditioning With High Or Low Speed Fan and Heat Pumps, Includes Humidification, Dehumidification, Ventilation And Dual Fuel Heat Pump Control
Grainger Item # 1RZY2  
Price (ea.) $268.25
Brand HONEYWELL  
Mfr. Model # YTH9421C1002  
Ship Qty. 1  
Sell Qty. (Will-Call) 1  
Ship Weight (lbs.) 1.5  
Usually Ships** Today  
Catalog Page No. 3813 catalog  
Country of Origin Mexico  

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Item VisionPRO IAQ
Type VisionPRO IAQ Touchscreen Kit
Stages Heat 4
Stages Cool 2
Temp. Settings per Day 4
Programs per Week 7
Terminal Designations R,RC,RH,C,W1,W2,W3,Y,Y2,G, L,1,2,3,Out1,Out2,In1,In2, Dats1,Dats2,Hum1,Hum2, Dhm1,Dhm2,Vnt1,Vnt2
System Switching Heat-Off-Cool-Auto-Emer. Heat
Fan Switching Auto-On-Circ.
Display LCD, Backlit
Key Pad Lockout Yes
Programmable Fan Yes
Humidification Control Yes
Remote Sensing Capability Yes
Battery Backup No
Low Battery Indicator No
Dual Transformer Compatible Yes
Power Method Hardwired
Voltage (AC) 24
Mounting Standard
Height (In.) 4 9/16
Width (In.) 6
Depth (In.) 1 3/8
Color White
Control Range (F) Heat 40 to 90, Cool 50 to 99
Characteristics Touch screen selectable 7 Day or Nonprogrammable , 3 Heat/2 Cool Conventional or 4 Heat/2 Cool Heat Pump System, humidification, dehumidification and ventilation Control with 3 wires to thermostat
For Use With Module or EnviraZONE panel
Includes Thermostat and Interface Module

The "Usually Ships" reflects when an item is generally expected to ship from Grainger based on its stocking location. Real-time availability information will be shown during the checkout process and on the e-mail order confirmation (for U.S. and Puerto Rico - US customers only). Please allow additional delivery time for international orders.

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Outdoor Sensor, Black

  • Grainger Item #:  6WY17
  • Price (ea.):   $36.60
  • Brand: HONEYWELL
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