Bryant Puron 551J-04A/G Series Installation Instructions Manual page 44

GENERAL
Economizer minimum vent and changeover settings to job requirements (if equipped) (Y/N) _____
Verify smoke detector unit shutdown by utilizing magnet test (Y/N) _____
IV. PERFECT HUMIDITY™ SYSTEM START-UP
NOTE: Units equipped with RTU Open controls have Service Test menus or modes that can assist with the Perfect Humidity™ Sys-
tem Start-Up function and provide the means to make the observations listed for this start-up.
STEPS
1. Check CTB for jumper 5, 6, 7 (Jumper 5, 6, 7 must be cut and open) (Y/N) _____
2. Open humidistat contacts (Y/N) _____
3. Start unit In cooling (Close Y1) (Y/N) _____
OBSERVE AND RECORD
A. Suction pressure
B. Discharge pressure
C. Entering air temperature
D. Liquid line temperature at outlet or reheat coil
E. Confirm correct rotation for compressor (Y/N) _____
F. Check for correct ramp-up of outdoor fan motor as condenser coil warms (Y/N) _____
4. Check unit charge per charging chart (Y/N) _____
5. Switch unit to high-latent mode (sub-cooler) by closing humidistat with Y1 closed (Y/N) _____
OBSERVE
A. Reduction in suction pressure (5 to 7 psi expected) (Y/N) _____
B. Discharge pressure unchanged (Y/N) _____
C. Liquid temperature drops to 50 to 55°F range (Y/N) _____
D. Liquid solenoid valve (LSV) energized (valve closes) (Y/N) _____
6. Switch unit to dehumid (reheat) by opening Y1 (Y/N) _____
OBSERVE
A. Suction pressure increases to normal cooling level
B. Discharge pressure decreases (35 to 50 psi)
C. Liquid temperature returns to normal cooling level
D. LSV solenoid energized (valve closes)
E. Discharge solenoid valve (DSV) energized, valve opens
7. With unit in dehumid mode close W1 compressor and outdoor fan stop; LSV and DSV solenoids are de-energized
(Y/N) _____
8. Open W1 restore unit to dehumid mode (Y/N) _____
9. Open humidistat input compressor and outdoor fan stop; LSV and DSV solenoids de-energized (Y/N) _____
10. Restore set-points for thermostat and humidistat (Y/N) _____
REPEAT PROCESS FOR 2 COMPRESSOR SYSTEMS.
Copyright 2018 Bryant Heating & Cooling Systems
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
_______________ PSIG
_______________ PSIG
_______________ ° F
_______________ ° F
Cat. No. 04-53551010-01 Edition Date: 11/18 Printed in U.S.A Form No: II551J-4-6-01
CL-2 Replaces: II551J-13