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PM7600B
PM7600B INPUT AND OUTPUT OPTIONS
CONFIGURATION PARAMETERS (continued)
Variable Name
Economizer Sensor 1
Economizer Sensor 2
Type of Heating
Equipment
Number of Heat Stages
Heat Motor Speed
Heat Minimum Time
Heating Modulation
Delay
Heating Reset Type
Warm-up Type
Type of Automatic
Changeover
63-4309—2
Variable Label
ECON_SENS1
ECON_SENS2
HEAT_TYPE
HEAT_STG
HEAT_MOTOR_SPEED Programmable duration, in number of
HEAT_TIME
MOD_HEAT_DELAY
HEAT_RESET_TYPE
WARMUP_TYPE
AUTO_CHANGE
Functional Description/Program Options
Selects which analog inputs enable the
economizer when ECON_SELECT has been
programmed to 3.
Program this variable within the analog
number range of the sensors; i.e., 1-18.
For example, to enable the economizer when
the outdoor air temperature is 10 degrees below
the return air temperature, program the
following variables:
ECON_SELECT = 3
ECON_SENS1 = 5 (OD_TMP)
ECON_SENS2 = 7 (RA_TMP)
ECON_OFFSET = 10 (° F)
When these variables are programmed, the analog
inputs that are selected must also be configured.
In the example, the analog inputs appear in
parentheses; i.e., (OD_TMP) and (RA_TMP).
The description is the same as for Economizer
Sensor 1.
Programmable:
0 = Staged heating.
1 = Stages plus floating.
2 = 1 stage plus modulating heating valve.
Programmable heat stages 0-6.
seconds, for full motor travel from 0-100%.
Range = 30-160 seconds programmed to
specified motor speed; i.e., 60.
Default = 100 seconds.
Value used for minimum on and off time with
each heat stage and for interstage time delay.
Fifteen second accuracy, 0-3780 seconds.
Time delay between heating stage and heating mod-
ulation. Fifteen second accuracy, 0-180 seconds.
Basis for resetting discharge air heating setpoint.
Programmable:
0 =
No reset
1 =
Reset from Space Temperature.
2 =
Reset from Outdoor Air Temperature.
3 =
Reset from Supply Fan Motor position.
4 =
Reset from Return Air Temperature.
Programmable:
0 =
No warm-up function
1 =
Warm-up until Return Air Temperature
exceeds Warm-up Heat Setpoint.
2 =
Warm-up until Space Temperature
exceeds Warm-up Heat Setpoint.
0 =
Only allows heating to operate when
changing from unoccupied to
occupied during morning warm-up.
1 =
To automatically change over from
cooling to heating any time the Morning
Warm-up Sensor temperature drops
below the Warm-up Heat Setpoint.
10
Recommended
Value
120 seconds
30 seconds
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