34
Outdoor draining of the furnace is permissible if allowed by local
codes. Caution should be taken when freezing ambient may freeze
drain pipe and prohibit draining.
UNIT MAY NOT OPERATE
Failure to follow this caution may result in intermittent unit
operation.
Unit must not be installed, operated, and then turned and
left off in an unoccupied structure during cold weather
when temperature drops to 32
_
F or below unless drain trap
and drain line have adequate freeze protection. See Service
and Maintenance Instructions for winterizing procedure.
(See Fig. 36.)
CAUTION
!
PERSONAL INJURY HAZARD
Failure to follow this warning could result in property
damage and personal injury or death.
Caution should be taken to prevent draining where slippery
conditions may cause personal injuries. Excessive
condensate draining may cause saturated soil conditions
which may result in damage to plants.
!
WARNING
Condensate Drain Protection
Freezing condensate left in condensate trap and drain line may
cause cracks, and possible water damage may occur. If freeze
protection is required, use condensate freeze protection accessory
or equivalent 3 to 6 watt per ft at 120v and 40
_
F self--regulating,
shielded, and waterproof heat tape. See Installation Instructions
supplied
with
accessory
or
heat
tape
manufacturer’s
recommendations.
1. Fold heat tape in half and wrap on itself 3 times.
2. Locate heat tape between sides of condensate trap back.
(See Fig. 38.)
3. Use wire ties to secure heat tape in place. Wire ties can be
positioned in notches of condensate trap sides. (See Fig.
38.)
4. Wrap field drain pipe with remaining heat tape, approxim-
ately 1 wrap per ft.
5. When using field--supplied heat tape, follow heat tape man-
ufacturer’s instructions for all other installation guidelines.
A07911
Fig. 36 -- Freeze Protection
OPEN STAND
PIPE FOR
A/C OR
HUMIDIFIER
DRAIN
TEE
TO OPEN
DRAIN
A94054
Fig. 37 -- Example of Field Drain Attachment
355B
A
V
