Carrier 50KC*A/B06 Series Installation Instructions Manual

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Catalog No. 04-53500199-01 Printed in U.S.A. Form 50KC-4-6-02SI Pg CL-2 11-18 Replaces: 50KC-4-6-01SI© Carrier Corporation 2018- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - -CUT ALONG DOTTED LINE CUT ALONG DOTTED LINEIV. HUMIDI-MIZER® START-UPNOTE: Units equipped with either SystemVu™ or RTU Open controls have Service Test menus or modes that can assist with theHumidi-MiZer System Start-Up function and provide the means to make the observations listed for this start-up.STEPS1. 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 RECORDA. Suction pressure _______________ PSIGB. Discharge pressure _______________ PSIGC. Entering air temperature _______________ ° FD. Liquid line temperature at outlet or reheat coil _______________ ° FE. 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) _____(Jumper 32L Motormaster ® temperature sensor during this check. Remove jumper when complete.)5. Switch unit to high-latent mode (sub-cooler) by closing humidistat with Y1 closed (Y/N) _____OBSERVEA. 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. LSV solenoid energized (valve closes) (Y/N) _____6. Switch unit to dehumid (reheat) by opening Y1 (Y/N) _____OBSERVEA. Suction pressure increases to normal cooling level (Y/N) _____B. Discharge pressure decreases (35 to 50 psi) (Limited by Motormaster control)C. Liquid temperature returns to normal cooling level (Y/N) _____D. LSV solenoid energized (valve closes) (Y/N) _____E. DSV solenoid energized, valve opens (Y/N) _____7. With unit in dehumid mode close W1 compressor and outdoor fan stop; LSV and DSV solenoids 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.

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