Featured Deal 1

$250 OFF

Any Complete Home Comfort Heating & Cooling System

With Coupon. CAN be combined
with coupon #4

Featured Deal 2

$100 OFF

Any Furnace Installation

With coupon. CAN be combined
with coupon #4

Featured Deal 3


Service Call Upon Repair

With coupon. Cannot be combined with any other offer

Featured Deal 4


Humidifier Plus FREE Honeywell Programmable Digital Thermostat with any new Furnace Installation

With Coupon. CAN be combined
with coupon #1 & #2

S1-MMH3 Control Panel

S1-MMH3 Control Panel

Three Zone Multi-Stage Control Panel

The S1-MMH3 Panel can control up to 3 zones and is capable of controlling single stage and two stage heating and cooling, as well as up to three stage heating, multi-speed and dual fuel heat pumps. This multi-function board uses any 4-wire thermostat. Two stage and heat pump thermostats are NOT required; however Heat pump thermostats can be used to remotely control the Emergency Heat.

Product Description

Special Benefits

  • NEW COLOR Coded Push-In Wiring Blocks
  • Uses Any Four Wire Thermostat
  • Three Stage Heating, Two Stage Cooling & Heat Pumps
  • Two and Three Zone Panel
  • Leaving Air Sensor for Capacity Protection
  • Intelligent Changeover Timing
  • Indicator Lights for System Operation


There are no reviews yet.

Be the first to review “S1-MMH3 Control Panel”

Your email address will not be published. Required fields are marked *