Unpacking The Unit - Friedrich Hazardgard SH20N50AT Installation & Operation Manual

Unpacking The Unit

STEP 1 Remove decorative plastic return air grille to a safe area away from the unit.
STEP 2 Remove the installation hardware, wingboard and two (one lighter colored and one dark colored) gaskets from beside the
unit, and place them in a safe area away from the unit.
STEP 3 Remove the chassis retainer by removing the far right screw in the basepan (see Figure A); save this screw to reattach the
chassis retainer after installation. A lso, remove and discard the two retainer screws and plastic bushings located at the rear
of the unit.
STEP 4 While an assistant holds the cabinet stationary, use the hand pull at the front of the base pan (see Figure A) to pull the
chassis out of the cabinet Remove white foam blocks used to restrain the compressor during shipment.
Figure A
Chassis Wiring and Preparation
STEP 1 Remove the junction box, cover and screw from the shipping position underneath the fan motor. Install one
junction box mounting leg in the upper left position facing the rear of the junction box. (See Figure A1.)
STEP 2 Remove and discard the threaded bushing wire protector from the conduit connector on the side panel
of the control compartment. Install eld supplied cable gland as required. Strip the wires only, approximately
1/2 inch (13 mm).
Insert all wires into the rear of the junction box and thread the box onto the Cable Gland until tight. Back
STEP 3
clockwise until the junction box is vertical with the mounting leg at the upper–right position
facing the box opening. Be sure that the shell can slide between this box and the chassis. NOTE: Field wiring
conductors to be copper and a minimum of 12 AWG. Complete junction box wiring and cover to prevent
ingress from dust and moisture. All wiring connections to the junction box are to be made with cable glands.
Figure A1
9 JUNCTION BOX MOUNTING
.
PULL STRAP
HAND PULL
FAR RIGHT SCREW
PROVIDED HARDWARE
CABINET
CABINET
REAR RETAINER SCREWS &
BUSHINGS
HAND PULL
1 JUNCTION BOX
2 MOUNTING LEGS
2 LEG SCREWS
2 HOLE COVERS
1 STAINLESS STEEL
GROUND SCREW
2 SCREWS
1 SHEET METAL SCREW
CHASSIS RETAINER
Wiring Connections at Wiring Box
GRN
Wire
Nut
BLK
BLK
System
Power
Use copper conductors only
BLK or WH
System
Ground