Carrier 50TC Manuel d'instructions télécharger pdf (Page 15)

5. Open the filter clips which are located underneath the

hood top. Insert the aluminum filter into the bottom

filter rack (hood divider). Push the filter into position

past the open filter clips. Close the filter clips to lock

the filter into place. See Fig. 15.

DIVIDER

BAROMETRIC

RELIEF

CLEANABLE

ALUMINUM

FILTER

HOOD

FILTER

CLIP

OUTSIDE

AIR

C08634

Fig. 15 -- Economizer Filter Installation

6. Caulk the ends of the joint between the unit top panel

and the hood top.

7. Replace the filter access panel.

Step 9 — Install External Condensate Trap and

Line

The unit has one 19 mm

-in.) condensate drain

connection on the end of the condensate pan and an

alternate connection on the bottom. See Fig. 16. Unit

airflow configuration does not determine which drain

connection to use. Either drain connection can be used

with vertical or horizontal applications.

When using the standard side drain connection, ensure the

red plug in the alternate bottom connection is tight. Do

this before setting the unit in place. The red drain pan can

be tightened with a 12.7 mm

--in.) square socket drive

extension.

To use the alternate bottom drain connection, remove the

red drain plug from the bottom connection (use a 12 mm

--in.] square socket drive extension) and install it in the

side drain connection.

DRAIN

(FACTORY-INSTALLED)

PLUG

CONDENSATE PAN (SIDE VIEW)

STANDARD

SIDE DRAIN

ALTERNATE

BOTTOM DRAIN

C08021

Fig. 16 -- Condensate Drain Pan (Side View)

The piping for the condensate drain and external trap can

be completed after the unit is in place. See Fig. 17.

NOTE: Trap should be deep enough to offset maximum unit static

difference. A 102 mm (4 in.) trap is recommended

MINIMUM PITCH

25 mm (1 in.) PER

3m (10 ft.) OF LINE

BASE RAIL

OPEN

VENT

TO ROOF

DRAIN

DRAIN PLUG

ROOF

CURB

SEE NOTE

51 mm

(2 in.)

MIN

C09387

Fig. 17 -- Condensate Drain Piping Details

All units must have an external trap for condensate

drainage. Install a trap at least 102 mm (4-in.) deep and

protect against freeze-up. If drain line is installed

downstream from the external trap, pitch the line away

from the unit at 25 mm in 3 m (1-in. per 10 ft) of run. Do

not use a pipe size smaller than the unit connection of

19 mm (

-in.).

Step 10 — Make Electrical Connections

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal

injury or death.

Do not use gas piping as an electrical ground. Unit

cabinet must have an uninterrupted, unbroken

electrical ground to minimize the possibility of

personal injury if an electrical fault should occur. This

ground may consist of electrical wire connected to

unit ground lug in control compartment, or conduit

approved for electrical ground when installed in

accordance with local electrical codes or in absence

of local codes, it is recommended that the U.S.A.

standard ANSI/NFPA 70, National Electrical Code

(NEC), be followed.

WARNING

NOTE: Check all factory and field electrical connections

for tightness. Field--supplied wiring shall conform with

the limitations of 33_C(63_F) rise.

Field power wires are connected to the unit at line--side

pressure lugs on compressor contactor C and indoor fan

contactor IFC (see wiring diagram label for control box

component arrangement) or at factory--installed option

non--fused disconnect switch. Use copper conductors only.

NOTE: Make field power connections directly to line

connection pressure lugs only.

50TC

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Carrier 50TC Manuel d'instructions Page 15

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