Horizontal Left Installations; Horizontal Right Installations; Circuit Breaker Cover Installation - Maytag B6BM series Installation Instructions Manual

to avoid damage to the ceiling in the event of condensate
overflow. Additionally, it is recommended that an approved
water level indicator or float switch device be used to shut
down the unit in the event water is detected in the auxiliary
drain pan.
If suspending the air handler from the ceiling, assemble a
support frame (Figure 4) using slotted iron channel and full
threaded rod. Fasten the frame together with nuts, washers,
and lockwashers. Secure the support frame to the rafters
with lag bolts. The air handler can also be suspended using
steel straps around each end of the unit. The straps should
be attached to the air handler with sheet metal screws and
to the rafters with bolts.

Horizontal Left Installations:

1. Remove the coil access door.
2. Remove the plug from one of the threaded holes in the
horizontal drain pan. Completely remove the webbing
located in the threaded holes of the horizontal drain
pan. IMPoRtANt: If the webbing is not removed, the
condensate will not drain properly and ceiling damage
may occur.
3. Insert the plug (from horizontal drain pan) into the open
and unused drain hole in the drain pan at the bottom of
the unit to block bypass air.
4. Remove the corresponding drain line knockout from the
coil access door to allow access to the horizontal drain.
5. Replace the door and attach the drain line.

Horizontal Right Installations:

1. Remove the coil access door. Unscrew the line-set tube
close-off plate from the front left cabinet rail.
2. Slide the coil and drain pan assembly out of the unit.
3. Remove the sheet metal hairpin covers (if supplied) from
the back of the coil and discard.
4. Place the horizontal drain pan on the opposite side of the
coil. On units with 2 sets of knockouts, remove the other set
of knockouts in the coil spacing plates and insert support
rod.
5. Slide the coil and the horizontal drain pan assembly back
into the unit. Re-attach the tube close off plate.
NotE: For A-size cabinet applications, it may be preferrable
to remove the blower assembly prior to installing the coil
& drainpan. In this case follow instructions 1-4 as listed
above but also remove the blower access door and blower
assembly. The blower assembly is secured with two screws
on either side near the front. With these removed the blower
assembly can slide out of the front of the unit. Install the
coil and drain pan as described in step 5 and then replace
the blower assembly. Make sure the flanges on the sides
of the blower assembly are captured by the pockets in
the blower deck. It may be necessary to lift the blower
assembly during insertion to allow the lower blower leg to
clear the side of the drain pan. The blower will stop against
the back of the blower deck. Replace the two screws and
the blower access door and procede with steps 6-9.
6. Remove the plug from one of the threaded holes in the
horizontal drain pan. Completely remove the webbing
located in the threaded holes of the drain pan. IMPoRtANt:
If the webbing is not removed, the condensate will not
drain properly and ceiling damage may occur.
NotE: It is recommended that the suction line be insulated
up to the coil inside of the cabinet.
7. Insert the plug (from horizontal drain pan) into the open
and unused drain hole in the drain pan at the bottom of
the unit to block bypass air.
8. Remove the corresponding drain line knockout from the
coil access door to allow access to the horizontal drain.
9. Replace the door and attach the drain line.

circuit Breaker cover Installation

The air handler circuit breaker cover is designed to protect
the breakers of an installed heater kit from debris and
condensation.The cover attaches to the breaker recess
of the air handler upper access door using a double-sided
adhesive gasket. See Figure 5. The heater kit circuit breaker
toggles are still accessible and can be switched with the
cover in place.
There are 2 different circuit breaker cover sizes:
• 2-breaker cover for 2, 2.5, 3, 3.5, & 4 ton air handlers.
• 3-breaker cover for 5 ton air handlers.
After the heater kit is properly installed, remove the appropriate
knockouts in the upper air handler access door and follow
these instructions to install the breaker cover:
1. Clean any oil, dirt, or insulation fibers from the recess area
of the air handler access door. This step is important for
ensuring the gasket adheres properly to the sheet metal
door.
2. Remove release paper from one side of the gasket
and attach to back side of the breaker cover.
NotE: For proper alignment, It is recommended to leave
the center section of the gasket in place when attaching
the gasket to the breaker cover. Remove the center section
after the gasket is applied to the breaker cover.
3. Remove the release paper from the other side of the gasket
and attach to the circuit breaker recess area.
4. Press firmly along all four sides of the cover to ensure
gasket and cover are securely attached to the access door.
circuit Breaker cover
Figure 5.
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