Manual 2100-647D
Page
15 of 36
FIGURE 7
Common Wall Mounting Installations
WIRING – MAIN POWER
Refer to the unit rating plate for wire sizing information
and maximum fuse or circuit breaker size. Each outdoor
unit is marked with a “Minimum Circuit Ampacity”. This
means that the field wiring used must be sized to carry
that amount of current. Depending on the installed KW
of electric heat, there may be two field power circuits
required. If this is the case, the unit serial plate will so
indicate. All models are suitable only for connection
with copper wire. Each unit and/or wiring diagram will
be marked “Use Copper Conductors Only”. These
instructions
must be
adhered to. Refer to the National
Electrical Code (NEC) for complete current carrying
capacity data on the various insulation grades of wiring
material. All wiring must conform to NEC and all local
codes.
The electrical data lists fuse and wire sizes (75° C
copper) for all models including the most commonly
used heater sizes. Also shown are the number of field
power circuits required for the various models with
heaters.
The unit rating plate lists a “Maximum Time Delay
Relay Fuse” or circuit breaker that is to be used with
the equipment. The correct size must be used for
proper circuit protection and also to assure that there
will be no nuisance tripping due to the momentary high
starting current of the compressor motor.
The disconnect access door on this unit may be locked
to prevent unauthorized access to the disconnect. To
convert for the locking capability, bend the tab located
in the bottom left-hand corner of the disconnect
opening under the disconnect access panel straight
out. This tab will now line up with the slot in the door.
When shut, a padlock may be placed through the hole
in the tab preventing entry.
See “Start Up” section beginning on page 17 for
important information on three phase scroll compressor
start ups.
See Tables 4A and 4B (pages 23 and 24) for electrical
specifications.
RAFTERS
DUCTED SUPPLY
RAFTERS
RAFTERS
RAFTERS
FALSE WALL
OUTSIDE
WALL
NO DUCT
SUPPLY AIR
GRILLE
RETURN AT UNIT
WALL
RAISED FLOOR
RETURN AIR
LOWERED
GRILLE
RETURN AIR
WALL
CEILING SURFACE
SPACE
RETURN AIR
RETURN AIR GRILLE
WALL
OUTSIDE
SUPPLY DUCT MAYBE LOCATED IN AN ATTIC
SUPPLY AIR DUCT
SUPPLY AIR DUCT
SUPPLY AIR DUCT
RETURN AIR
OPENING W/ GRILLE
OUTSIDE
W/ GRILLE
FALSE WALL INSTALLATION
CEILING
RAIN
FLASHING
RAIN
FLASHING
SUPPLY DUCT MAYBE LOCATED IN AN ATTIC
OR BELOW CEILING RAFTERS AS SHOWN
FINISHED CEILING
WALL
CLOSET WALL
SURFACE
OPENING W/ GRILLE
SLEEVE
OR BELOW CEILING RAFTERS AS SHOWN
SUPPLY AIR DUCT
OUTSIDE
WALL SLEEVE
SUPPLY DUCT MAY BE LOCATED IN AN ATTIC
OR BELOW CEILING RAFTERS AS SHOWN
FINISHED CEILING SURFACE
RAIN
FLASHING
FINISHED CEILING SURFACE
RAIN
FLASHING
CLOSET INSTALLATION
FINISHED
MIS-550 C
FREE AIR FLOW
RETURN AIR
