Reznor MASA Unit Installation Manual - Manual (Page 27)

Form I-COND, P/N 220746R6, Page 27
10.2 Maintenance
Schedule
Beginning of the cooling season or more frequently in year-
round cooling climate:
□
Inspect the wiring for any damaged wire. Replace damaged wiring.
□
Inspect the condenser fan. Clean as needed. See Paragraph 10.3.
□
Inspect/clean condenser coil. See Paragraph 10.4.
□
Check compressor operation. See Paragraph 10.5.
□
Check refrigerant pressure and temperatures (both superheat and
subcool). These measurements must be taken when the system is in
operation. See Paragraph 10.5.
FIGURE 8 -
Electrical
Compartment
showing
Control
Locations
Electrical and
Compressor
Compartment
Access
Panel
Top (removed for clarity)
Relays
Capacitor
Transformer
Line Voltage
Terminal Block
24V Terminal Block
Line Voltage
Entrance
Control Voltage
Entrance
Contactors
R-410A Compressors
(identified by
Circuit A & B)
B
A
10.3 Condenser
Fan(s)
Maintenance
NOTE: If replacement
parts are required, use
only factory-authorized
parts. For information,
go to www.RezSpec.
com. or call 1-800-695-
1901.
Check condenser fans. Carefully clean debris and dirt from guards, fan blades
and motors. If any parts need to be replaced, use only factory-authorized
replacement parts.
Fan rotation is
counterclockwise.
Top View
Torque blade
setscrew to
120 in/lbs ±2.
Side View
1 to 1-1/2 inches (25-38mm) maximum
distance from top of fan blade down
to top edge of fan orifice in cabinet top
Motor
Condenser Top
Fan Blade
FIGURE 9 -
Condenser
Fan Rotation
and Fan
Blade
Spacing from
Top Edge of
Fan Orifice