McQuay ACU018ARAY Installation And Maintenance Manual

12, www.mcquay.com • 800-432-1342 This document contains the most current product information as of this printing. For the most up-to-date product information, please go to www.mcquay.com. …

5, IM-800 Page 5 GENERAL WARNINGS CLEARANCES AND ACCESSIBILITY The condensing unit is designed to be located outside the building with unobstructed condenser air inlet and discharge. Additionally, the unit must be situated to permit access for ser- vice and installation. Condenser…

6, Page 6 IM-800 LOCATION If unit is to be located under an overhang, there should be a minimum of 36” clearance and provisions made to deflect the water discharge air out from the overhang. If the outdoor unit is mounted above the air handler, the maximum lift should not exceed 70’ (su…

8, Page 8 IM-800 CHARGE CHECKS Capillary Tube/Fixed Orifice System 1. Fully open both base valves. 2. Connect service gauge manifold to base-valve service ports to purge lines. Run system at least 10 minutes to allow pressure to stabilize. 3. Temporarily install thermometer on suctio…

10, McQuay ACU018ARAY Page 10 IM-800 WIRING DIAGRAM - THREE PHASE CONTROLS SHOWN WITH UTILITIES IN 'ON'POSITION LOW VOLTAGE DEFROST RELAY OUTDOOR THERMOSTAT (OPTIONAL) HIGH VOLTAGE DEFROST RELAY AND THERMOSTAT REVERSING VALVE COIL FAN CAPACITOR HIGH PRESSURE CONTROL CRANKCASE HEATER INTERNAL O…

9, IM-800 Page 9 WIRING DIAGRAM - SINGLE PHASE BK ANTICIPATOR THERMOSTAT BULB THERMOSTAT ADJ. HEAT THERMOSTAT ANTICIPATOR HIGH VOLTAGE LOW VOLTAGE OPTIONAL START ASSIST WIRE NUT REPLACEMENT WIRE MUST BE SAME GAGE AND INSULATION THICKNESS, 105° C APPLIANCE WIRING MATERIAL. NOTES: C…