McQuay MHC Series, Installation & Maintenance Data, Page: 26 / 36

Page 26 of 36 / IM 985-1
Programmable Electronic Thermostat
(P/N 668811101)
7-Day Programmable, Auto Changeover, Fan Speed
Control, Hardwired
•­ 7-Day­Programmable
•­ Single­Stage­Heat­Pump/Non-Heat­Pump­Systems
•­ Backlit­Display
•­ Single­Stage­Heat/Cool­Systems
•­ Field­Calibration
•­ Auto­Changeover
•­ Button­Lockout­Function
•­ Two­Speed­Fan­Control
•­ SimpleSet™­Programming
•­ Remote­Temperature­Sensor­Capability
•­ Title­24­Compliant­/­No­Batteries­Required
•­ Relay­Outputs­(minimum­voltage­drop­in­thermostat)
•­ Ideally­Suited­for:
­
–­Residential­(New­Construction/Replacement)
­ –­Light­Commercial
Specifications–668811101
Electrical rating: ­•­24­VAC­(18-30­VAC)
­ ­ •­1­amp­maximum­per­terminal
­ ­ •­3­amp­maximum­total­load
Temperature control range: ­45°F­to­90°F­(7°C­to­
32°C)­Accuracy:­±­1°F­(±­0 .5°C)
System configurations:
­1-stage­heat,­1-stage­cool,­heat­
pump
Timing: ­Anti-short­Cycle:­5­minutes­­
­ Backlight­Operation:­10­seconds
Terminations: ­C,­RH,­RC,­W,­Y,­B,­O­G1,­G2,­S1,­S2
For­detailed­installation,­operation­and­application­refer­
to­Operation­&­Application­Guide­LIAF015
Non-Programmable Electronic Thermostat
(P/N 668811001)
Non-Programmable, Auto Changeover, Fan Speed
Control, Hardwired
•­ Single­Stage­Heat­Pump/Non-Heat­Pump­Systems
•­ Backlit­Display
•­ Single­Stage­Heat/Cool­Systems
•­ Field­Calibration
•­ Auto­Changeover
•­ Button­Lockout­Function
•­ Two­Speed­Fan­Control
•­ Remote­Temperature­Sensor­Capability
•­ Title­24­Compliant­/­No­Batteries­Required
•­ Relay­Outputs­(minimum­voltage­drop­in­thermostat)
•­ Ideally­Suited­for:
­
–­Residential­(New­Construction/Replacement)
­ –­Light­Commercial
Specifications–668811001
Electrical rating: ­•­24­VAC­(18-30­VAC)
­ ­ •­1­amp­maximum­per­terminal
­ ­ •­3­amp­maximum­total­load
Temperature control range: ­45°F­to­90°F­(7°C­to­
32°C)­Accuracy:­±­1°F­(±­0 .5°C)
System configurations:
­1-stage­heat,­1-stage­cool,­heat­
pump
Timing: ­Anti-short­Cycle:­5­minutes­­
­ Backlight­Operation:­10­seconds
Terminations: ­C,­RH,­RC,­W,­Y,­B,­O­G1,­G2,­S1,­S2
For­detailed­installation,­operation­and­application­refer­
to­Operation­&­Application­Guide­LIAF016