Carrier 59SU5A Manual page 16

59SU5A: Installation, Start-up, Operating and Service Maintenance Instructions
7. Connect additional condensate piping to a code-approved drain, or
to a condensate pump approved for use with acidic furnace
condensate and compatible with mineral and vegetable oils, such as
canola oil.
8. Allow at least 1/4-in. per foot (20 mm per meter) of slope down and
away from the furnace in horizontal sections of drain line.
Fig. 24 – Condensate Drain Connection
Installation of Evaporator Coils
When installing the evaporator coil, refer to the allowed installation
configurations (Table 6). Some coils require an 8-in. tall sheet metal
spacer between the furnace and the coil or some require a metal shield
between the drain pan of the coil and the discharge flanges of the
furnace. This is to protect the composite drain pan of the evaporator coil.
The coil offset adapter kits in the product accessory list will require an
additional field fabricated adapter to ensure the 8-in. separation.
WARNING
!
FIRE HAZARD
When installing evaporator coils that have composite (plastic) drain
pans and are exposed directly to the furnace heat exchanger, a sheet
metal spacer/transition or drain pan shield is required.
Failure to protect the coil composite drain pan could result in fire,
personal injury, or death. (Table
Table 6 – Evaporator Coil Spacer or Shield Requirements.
Install Flush to
Type of Coil
Furnace
Furnace
Manufacturer's Allowed
N Coil
Furnace
Manufacturer's Not Allowed
A Coil
3rd Party Coil -
Factory
Allowed
Shielded (See
Note 1)
3rd Party Coil -
Not Allowed
Unshielded
NOTE:
1. 3rd Party Coils that are factory-supplied with a metallic shield over
the plastic composite drain pan must completely shield all plastic
composite materials from direct exposure to any part of the heat
exchanger. Consult with 3rd Party Manufacturer to ensure coil is
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
6)
Install with Install with
8-in. Spacer Metal Shield
Not Required Not Required
Allowed
(Except 100k BTU
Allowed
size in Horizontal
(See Note 2)
Right - MUST use
shield)
Not Required Not Required
Allowed
(Except 100k BTU
Allowed
size in Horizontal
(See Note 3)
Right - MUST use
shield)
properly shielded. Coils that are only partially shielded should be
treated as un-shielded and require a spacer.
2. Field-fabricated metallic shield must completely shield all plastic
composite materials from direct exposure to any part of the heat
exchanger. Coils that are only partially shielded should be treated as
un-shielded and require a spacer. Dimensional requirements (see
Fig. 26).
3. For 3rd party unshielded coils, consult manufacturer for design of a
field-fabricated shield that completely shields all plastic composite
materials from direct exposure to any part of the heat exchanger.
All adapters are field fabricated according to the dimensions for the
metal shield (see Fig.
Fig. 26).
3-- 3/4
Representative drawing only, some models may vary.
1-- 1/2
A200094
20- - - 1/2
Cabinet Size
17-in.
21-in.
Fig. 25 – Dimensions Metal Shield
NOTE: The metal shield in the figure above is only recommended for
use with furnace manufacturer's A-Coil and may not be compatible with
3rd party coils. In the event the shield shown above is incompatible with
the desired coil, use a spacer or consult 3rd Party Manufacturer for
recommended dimensions and design of suitable shield.
16
25) and for the 8-in. tall sheet metal spacer (see
A ---COIL SHIELD
16-- 1/2
3-- 1/2
A+7.5
FRONT
Furnace
Coil
Furnace
Dimension "A"
10-in.
13.5-in.
3-- 1/2
3-- 3/4
A190295
A190296