Carrier 33ZCSECTRM, 33ZCFANTRM, 33ZCVAVTRM specifications Heat Minimum Units

Heat Minimum (PI) — This configuration is the minimum airflow the terminal will control to when the equipment mode is Warm-Up or Heat. If the terminal is not configured for VAV central heating this is the only airflow the terminal will control to for these equipment modes.

Heat Minimum: Units	CFM
Range	0 to 9999 (Limited by
the High Velocity pressure limit alarm)
Default Value	0

Heat Maximum (PI) — This configuration is used to config- ure the maximum airflow at which the zone controller will op- erate if VAV central heat is configured to yes. If the equipment mode is heat or warm-up, and the demand in the space is for heat, the zone controller will calculate the proper airflow need- ed to achieve space temperature set point (operating between the Heat Min and Heat Max).

Heat Maximum: Units	CFM
Range	0 to 9999 (Limited by
the High Velocity pressure limit alarm)
Default Value	4000

Parallel Fan On (PI) — This configuration is used to define the primary airflow setting below which a parallel fan terminal should energize its fan. The setting should be used to allow a low volume of primary airflow to be better diffused into the space.

Parallel Fan On: Units	CFM
Range	0 to 9999 (Limited by
the High Velocity pressure limit alarm)
Default Value	0

Dual Duct CV Airflow (PI) — This configuration defines the Dual Duct, constant volume, total airflow set point.

Dual Duct
Airflow:	Units	CFM
	Range	0 to 9999 (Limited by
	the High Velocity pressure limit alarm)
	Default Value	4000

Pressure Dependent — Pressure Dependent (PD) set points should be configured for backup pressure dependent operation, if an operating problem with the pressure transducer occurs.

IMPORTANT: Pressure dependent settings are included for use only in the event of a pressure trans- ducer failure. The inclusion of these configuration set- tings does not indicate that Carrier is endorsing this product for pressure dependent operation. In the case of a pressure sensor failure, the zone controller will broadcast a pressure sensor failure message on the CCN bus. These configurations may be used by a ser- vice technician to put the terminal in pressure depen- dent mode until the zone controller can be replaced.

Cool Minimum Position (PD) — This configuration is the minimum damper position the terminal will control to when the equipment mode is Cooling (or Fan Only), or free cooling and the space requirements for cooling are at a minimum.

Cool Minimum
Position:	Units	%
	Range	0 to 100
	Default Value	0

Cool Maximum Position (PD) — This configuration is the maximum damper position the terminal will control to when the equipment mode is cooling (or fan only), or free cooling and the space requirements for cooling are at a maximum.

Cool Maximum
Position:	Units	%
	Range	0 to 100
	Default Value	100

Reheat Minimum Position (PD) — This configuration is for single duct units with ducted reheat. Configure the desired damper position at which the reheat will provide optimum per- formance. This value is compared to the Minimum Cool value and the greater of the two values is used to determine the damper position.

Reheat Minimum
Position:	Units	%
	Range	0 to 100
	Default Value	0

Heat Minimum Position (PD) — This configuration is the Minimum damper position the terminal will control to when the equipment mode is Warm-Up or Heat. If the terminal is not configured for VAV central heating this is the only position the terminal will control to for these equipment modes.

Heat Minimum
Position:	Units	%
	Range	0 to 100
	Default Value	0

Heat Maximum Position (PD) — This configuration is used to configure the maximum damper position at which the zone controller will operate if VAV central heat is configured to yes. If the equipment mode is Heat or Warm-Up and the demand in the space is for heat the zone controller will calculate the prop- er damper position needed to achieve space temperature set point, operating between the Heat Min and Heat Max.

Heat Maximum
Position:	Units	%
	Range	0 to 100
	Default Value	100

Deadband Percent — This configuration is used to configure the Deadband Percent that the airflow will operate with.

Deadband
Percent:	Units	%
	Range	0.0 to 100.0
	Default Value	12.5

TERMINAL SERVICE CONFIGURATION SCREEN — The Terminal Service Configuration screen lists the main con- figuration settings for the air terminal controller. See Table 10.

Terminal Type — This configuration is used to indicate the terminal type that the zone controller is installed on. A 1 is for Single Duct terminals, a 2 is for Parallel Fan terminals, a 3 is for Series Fan terminals, and a 4 is for Dual Duct applications.

Terminal Type: Range	1 to 4
Default Value	1

Primary Inlet Size — The Primary Inlet Size configuration is used to input the inlet diameter of the terminal if used with a round inlet. The Inlet Area configuration is used for oval or rectangular inlets. The zone controller will use the larger value for CFM calculations if both values are configured.

NOTE: Carrier sizes 12, 14, and 16 are oval.

Primary Inlet Size
(Inlet Diameter): Units	Inches
Range	3.0 to 24.0
Default Value	6.0

Inlet Area — The Inlet Area configuration is used if the termi- nal has an oval or rectangular inlet. The Primary Inlet Size configuration is used for round inlets. The zone controller will use the larger value for CFM calculations if both values are configured.

Inlet Area:	Units	Square Inches
	Range	0.0 to 500.0
	Default Value	0.0

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