SC-Z20 COMFORT SYSTEM™
CONTROL PANEL SPECIFICATIONS
APPLICATION:
The model SC-Z20 is a commercial zone control system that allows a single heating and cooling unit to have up to 20
individual zones. Each zone is controlled by its own space thermostat and motorized damper. If a majority of zones are
calling for heat, the system will operate in the heating mode. The two stages of heat will be cycled to maintain the heating
discharge air setpoint. If a majority of zones are calling for cooling, the system will operate in the cooling mode and the two
stages of cooling will be cycled to maintain the cooling discharge air setpoint. If the number of zones calling for heating and
cooling are equal, the system will operate in the cooling mode first. This is known as Cooling Priority. Each zone damper or
diffuser will modulate, based on zone and discharge air temperature, to maintain the individual zone temperature setpoint.
A barometric or electronic bypass damper will modulate to maintain the duct static pressure.
DIMENSIONS:
Height:
13.5”
Width:
11.0”
Depth:
2.0”
PANEL CONSTRUCTION:
Rating:
NEMA 1
Material
#18 aluminum with 4 knock-outs on top (open bottom)
Door:
Fully removable, self-centering
Finish:
Blue anodized
POWER REQUIREMENTS:
Voltage:
24 VAC
VA:
2 VA per individual zone damper actuator
Dampers / Diffusers - 2 VA Each
OPERATING AMBIENT:
Temperature:
32°F to 120°F
SHIPPING WEIGHT:
Panel Weight:
10.0 lbs.
WARRANTY:
Panel:
5 Years