Lenox Elite Series XP14 Units HEAT PUMPS, 50677201 1CUT and Debur, 2CAP and Core Removal

Models: 50677201 Elite Series XP14 Units HEAT PUMPS

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1CUT AND DEBUR

Cut ends of the refrigerant lines square (free from nicks or dents) and debur the ends. The pipe must remain round. Do not crimp end of the line.

2CAP AND CORE REMOVAL

Remove service cap and core from both the suction / vapor and liquid line service ports.

CUT AND DEBUR

LINE SET SIZE MATCHES

SERVICE VALVE CONNECTION

SERVICE PORT

SERVICE

CAP

PORT

 

CORE

SERVICE VALVE

CONNECTION

COPPER TUBE

STUB

REDUCER

LINE SET SIZE IS SMALLER

THAN CONNECTION

REFRIGERANT LINE

SERVICE

PORT

CORE

SUCTION / VAPOR LINE

SERVICE VALVE (BALL−TYPE

FOR −060 AND ANGLE−TYPE

FOR ALL OTHER SIZES)

DO NOT CRIMP SERVICE VALVE

CONNECTOR WHEN PIPE IS

SMALLER THAN CONNECTION

3ATTACH THE MANIFOLD GAUGE SET FOR BRAZING LIQUID AND SUCTION / VAPOR LINE SERVICE VALVES

Flow regulated nitrogen (at 1 to 2 psig) through the low−side refrigeration gauge set into the liquid line service port valve, and out of the suction / vapor line service port valve.

AConnect gauge set low pressure side to liquid line service valve (service port).

BConnect gauge set center port to bottle of nitrogen with regulator.

CRemove core from valve in suction / vapor line service port to allow nitrogen to escape.

SUCTION / VAPOR SERVICE PORT MUST BE

LOW

ATTACH GAUGES

HIGH

USE REGULATOR TO FLOW NITROGEN AT 1 TO 2 PSIG.

OPEN TO ALLOW EXIT POINT FOR NITROGEN

VAPOR LINE

INDOOR

UNIT

C

SUCTION /

VAPOR LINE

SERVICE

VALVE

B

OUTDOOR

UNIT

NITROGEN

LIQUID LINE

LIQUID LINE SERVICE

A WHEN BRAZING LINE SET TO

 

VALVE

SERVICE VALVES, POINT FLAME

 

 

AWAY FROM SERVICE VALVE.

Figure 9. Brazing Procedures

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XP14 SERIES

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Lenox Elite Series XP14 Units HEAT PUMPS, 50677201 installation instructions 1CUT and Debur, 2CAP and Core Removal