Instructions / Assembly

Page 27

mrcool.com

Outdoor Unit Installation

Refrigerant Piping Connection

Connecting the refrigerant pipe to outdoor unit

CAUTION

For your safety, always wear goggles and work gloves when connecting the pipes.

Refrigerant Piping Connection

1. First remove the

water tray on the

outdoor unit as

shown.

2. Do not remove the plastic seals from the

outdoor unit and the appropriate

refrigerant pipes until immediately before

you connect them.

NOTE: The refrigerant pipes must be connected to the

valves on the outdoor unit with as little stress as

possible.

IMPORTANT: Before you continue, it is essential that

you read the following instructions carefully.

3. Align the refrigerant pipes correctly so that they line

up with the valves and are not stressed. Place the

screw connector on the refrigerant line just on to the

thread on the outdoor unit and tighten the ﬁrst few

threads by hand.

4. Now tighten the bottom screw connector ﬁrst and

then the top screw connector using the open ended

wrench (i.e. crescent or adjustable). Using the wrench,

hold the points marked “1” and turn the nuts only at

the points marked “2” (Select the appropriate wrench

according to the dimensions of the connector).

Ensure that the screw connectors do not skew as you

tighten them and work quickly. See below for the

proper torque requirements.

After completing steps 1- 4, check that all the

connections are sealed correctly using leak detection

spray or soap suds. If any bubbles form, the system

has a leak and the screw connectors must be

retightened using an crescent or adjustable wrench.

IMPORTANT

Since the coupling works with tapping

rings, it may leak if you undo and

reconnect the pipes. This will also

void the warranty.