Air Purge - Heat Controller SMA 18 Installation Instructions Manual

Version c single zone ductless mini-split system a/c and heat pump

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Table of Contents

SMA/SMH 18/24

AIR PURGE AND TEST OPERATION

1. Air Purge

• Open the valve stem until it hits against the stop.

Do not try to open it further.

• Securely tighten the valve stem cap with a

spanner or wrench.

• Torque the valve properly:

Gas pipe side (0.38"): 23.5 N-cm (300 kgf-cm)

Liquid pipe side (0.25"): 12.56 N-cm (160 kgf-cm)

INSTALLATION INSTRUCTIONS

where L=Length

Completely tighten the flare nuts A, B, C, D.

Connect the manifold valve charge hose to the

charge port of the packed valve on the gas pipe

side.

Connect the charge hose to the vacuum

pump.

-29.92 inHg.

Lo Handle

Heat Controller, Inc.

is entering.

Hi Handle

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