Carrier 40QA, Installation, Start-Up And Service Instructions Manual

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Step 5 — Connect Condensate Drain Line
—
Observe all local sanitary codes when installing conden-
sate drains. Refer to Fig. 3 and 15 for drain pipe connection
from indoor unit.
1. Use hard polyvinyl chloride (PVC) pipe material with nomi-
nal ID of 3/4 in. to connect at drain line. Use pipe insu-
lation 1/4-in. thick, such as Armaflex insulation, on ex-
posed piping inside the conditioned space.
2. To ensure regular flow of condensate water, the drain pipe
should be pitched toward an open drain or sump at a down-
ward slope of at least 1/4-in. per ft.
3. Attach plate with screws under piping hole.
4. Attach drain pipe with nylon wire tie passing through hole
(Fig. 16).
NOTE: Do not fasten nylon wire ties tight enough to de-
form the insulation, as this affects its performance.
5. Insulate condensate drain line(s) that are located in or above
an occupied area with a condensate-proof material such
as polyurethane or neoprene.
6. Install an external trap at the end of the condensate line.
NOTE: Should your particular installation require one,
a condensate pump may be ordered as a field-installed
accessory.
Table 6 — Required Piston Size for AccuRater
T
Metering Device, Cooling-Only Condensing Units With
Heat Pump Fan Coil Units
INDOOR
UNIT 40QAE
OUTDOOR
UNIT 38HDC
PISTON SIZE
REQUIRED
REQUIRED SYSTEM
CHARGE (lb)*
024† 018 52 3.6
024 024 53 6.2**
036
030 63 5.6
036 65 5.6
048 048 84 7.4
060 060 93 13.6
*Charge is based on 25 ft of interconnecting tubing. Charge may need to be added for longer tubing runs or when used with certain fan coil units.
Check outdoor unit nameplate for required charge.
†Unit is field reconfigured for 18,000 Btuh operation. See Before Installation section on page 3 for reconfiguration details. Check outdoor unit
nameplate for required charge.
**Combination may require charge in addition to what is factory supplied.
NOTES:
1. All pistons are Chattleff
9
B
9
type.
2. All cooling units have a full factory charge for the smallest possible system combination.
3. Service valves are front-seating type.
1 — Air Delivery Louvers
2 — Air Filters
3 — Remote Thermostat
4 — Drain Pipe
5 — Interconnecting Tubing and Wire
6 — Outdoor Unit (38HDC Shown)
7 — Outdoor Unit Disconnect Switch
8 — Indoor Unit Disconnect Switch
Fig. 15 — Component Location (Typical Ceiling-Suspended System)
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