Carrier 40GRQ Owner's Manual

Also see for 38GRQ: Owner's manual Installation instruction

Contents

OUTDOOR UNIT INSTALLATION FOR SINGLE ZONE APLICATIONS(REFER TO THE 38GJ OWNER'S MANUAL FOR MULTIZONE)Step four: connect indoor and outdoor pipes1. Remove the screw on the right han-dle of outdoor unit and then removethe handle.4. Tighten the union nut with torquewrench by referring to the sheetbelow.handlescrew2. Remove the screw cap of valve andaim the pipe joint at the bellmouth ofpipe.gas pipeliquid pipeliquidvalvegas valve3. Pretightening the union nut withhand.union nutpipe joint1. Remove the wire clip; connect the po-wer connection wire and signal controlwire (only for heating unit) to the wiringterminal according to thehandle Indoor unit connection POWERL1’ S L2’ L2’ GGL2L2L1 GL1(blue)white(blue)whiteredblack (brown) (brown)black(yellow-greengreen)(yellow-greengreen)18K 12KL2L1’L1L2 L1Indoor unitSHex nut diameter Tig40.68~54.24 ft.lb(30~40 N.m)61.02~74.58 ft.lb(45~55 N.m)81.36~88.14 ft.lb(60~65 N.m)94.93~101.7 ft.lb(70~75 N.m)20.34~27.12 ft.lb(15~20 N.m)1/4 in (6 mm)3/8 in (9.52 mm)1/2 in (12 mm)5/8 in (16 mm)3/4 in (19 mm)-32-