70
RT-SVX34R-EN
Table 42. Test mode states for CV units with modulating hot gas reheat and staged heat
TEST
STEP MODE FAN ECON
COMP
1
COMP
2
COMP
3
HEAT
1
HEAT
2 PUMPOUT
COOL
VAL-
VE
RE-
HEAT
VALVE
VAV
BOX
1 FAN ON ON MIN OFF OFF OFF OFF OFF OFF 100% 0% ON
2
ECONO-
MIZER
ON OPEN OFF OFF OFF OFF OFF OFF 100% 0% ON
3 COOL 1 ON MIN ON OFF OFF OFF OFF IN-CONTROL 100% 0% ON
4 COOL 2 ON MIN ON ON OFF OFF OFF IN-CONTROL 100% 0% ON
5 COOL 3 ON MIN ON ON ON OFF OFF IN-CONTROL 100% 0% ON
6 REHEAT ON MIN ON ON ON OFF OFF IN-CONTROL 50% 50% ON
7 HEAT 1 ON MIN OFF OFF OFF ON OFF OFF 100% 0% ON
8 HEAT 2 ON MIN OFF OFF OFF ON ON OFF 100% 0% ON
9 RESET
Notes:2 & 3 stage standard efficiency units (excluding 40–50T std eff. CV):
1. For 27.5-35T units, both compressors will be energized during the Cool 2 Step. For 40-50T units, only Compressor 2 will be energized during the Cool
2 Step.
2. The Reheat Pumpout relay will be energized any time the Reheat circuit is energized in active Cooling Mode.
3. For units with Statitrac installed, the Exhaust Damper will track the Economizer position during Service Test Mode and the Exhaust Fan will be
energized once the Economizer rises above the Exhaust Enable Setpoint.
4. Heating will not be energized during Service Test until the 6 minute VAV Box ON timer has expired.
Notes:5 stage high efficiency units (including 40–50T std eff. CV):
1. Compressor 1 is the smaller compressor on the circuit.
2. Condenser fans are controlled as defined for normal operation.
3. Exhaust fan operates as defined for normal operation based on economizer position.
4. When Compressor 1 is energized with either C1, C2, or with both for 30 minutes continuously, C3 will be required to de-energize for 30 seconds.
SSttaarrttuupp
To Next Page
Loading...
