Armstrong Air BCE7E-036 Manual de instruções de instalação - Página 8

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Place a wet rag against piping plate and around the

suction line connection. The wet rag must be in place

to guard against damage to the paint.

With the wet rag in place, position a field provided

elbow fitting to the air handler's suction line and line

set. Start nitrogen flow before brazing.

After the procedure is completed then remove the wet

rag.

Place wet rag against piping plate and around the

liquid line connection. Position liquid line elbow to air

handler's suction line and to line set. Start nitrogen

flow and begin brazing both connections and after

procedure is completed then remove both wet rags.

Refer to instructions provided with outdoor unit for leak

testing, evacuating and charging procedures.

Install access panel.

ABOVE

ALWAYS RUN AN OVERFLOW DRAIN LINE. IF NOT POSSIBLE TO

FINISHED

ROUTE OVERFLOW DRAIN LINE, INSTALL LOW VOLTAGE

SPACE?

OVERFLOW

COMPRESSOR PER INSTRUCTIONS.

COMPACT OVERFLOW SWITCH WITH 3/4" FEMALE SLIP INLET

AND MALE ADAPTER, TWO PART DESIGN FOR USE WHERE

OBSTRUCTIONS PREVENT DIRECT THREADING

OVERFLOW

YES

NOTE — WHEN A AIR HANDLER IS LOCATED

ABOVE A FINISHED SPACE THE SECONDARY

DRAIN PAN MUST HAVE A LARGER FOOTPRINT

THAN THE AIR HANDLER.

SECONDARY

DRAIN PAN

WHEN A COIL IS LOCATED ABOVE A FINISHED SPACE, A

3/4" (19.1MM) SECONDARY DRAIN LINE MUST BE:

CONNECTED TO SECONDARY DRAIN PAN

CONNECTED TO THE OVERFLOW DRAIN OUTLET OF

THE AIR HANDLER DRAIN PAN.

TRAPS MUST BE DEEP ENOUGH TO OFFSET MAXIMUM STATIC DIFFERENCES —

GENERALLY, TWO INCHES (51MM).

P-TRAP 49P66 REQUIRES A LARGER INSTALLATION SPACE THAN THE J-TRAP 91P90.

PIPE NIPPLE PROVIDED IN BAG ASSEMBLY - SCH 80, 3/4" I. D. X 5" - 34K7401 (1): CUT THE PIPE IN HALF AND USE IT TO ROUTE THE MA IN DRAIN.

Page 8 of 19

OVERFLOW DRAIN LINE

SWITCH

KIT.

WIRE

CAT #

X3169

AIR HANDLER DRAIN PAN

DRAIN

MAIN

DRAIN

Figure 7. Typical Main and Overflow Drain

Installing the Condensate Drain

Main Drain

Connect the main drain and route downward to drain line

or sump. Do not connect drain to a closed waste system.

See Figure 7 for typical drain trap configuration.

Overflow Drain

It is recommended that the overflow drain is connected to

an overflow drain line for all units. If overflow drain is not

connected, it must be plugged with provided cap.

For downflow orientation, the overflow drain MUST be

connected and routed to a overflow drain line. See Figure

8 for main and overflow drain locations based on coil

orientation.

KIT

SHUT

DOWN

CLEAN OUT

PRESS IN

(DO NOT GLUE)

MAIN

DRAIN

CUT TO

REQUIRED

LENGTH

PROVIDED

PIPE NIPPLE

SIDE VIEW

FOR NEGATIVE PRESSURE COILS (BLOWER

AFTER COIL) TRAPS ARE REQUIRED ON ALL

DRAIN LINES CONNECTED TO COIL.

Issue 1813

VENT MUST EXTEND

ABOVE HEIGHT OF

COIL DRAIN PAN BY

TWO INCHES (51MM)

VENT

1" X 3/4" X 3/4"

REDUCING

TEE WITH

PLUG

P-TRAP

49P66, J-TRAP #

91P90 OR ANY

PVC SCH 40 P- OR

J-TRAP 3/4"

(51MM)

TRAP DEPTH

TO APPROVED

DRAIN

DRAIN LINE SHOULD

SLOPE A MINIMUM OF

ONE

INCH

PER

FEET (25MM PER 3

METERS)

507838-01