Connecting Line Set - Sea Breeze SMZ42H46ZOGX Installation Manual

CAUTION! IMPROPER CONNECTION OF THE LINE SETS WILL RESULT IN IMPROPER OPERATION OF
THE SYSTEM. MARK EACH LINE SET AND WIRING FOR IDENTIFICATION. IDENTIFICATION
LABELS ARE INCLUDED WITH EACH OUTDOOR UNIT. ENSURE THAT THE WIRING AND
THE LINE SETS ARE ROUTED TO THE PROPER INDOOR ZONE.
Line Set sizes of indoor units
Indoor Unit Type
Wall Mounted A
Wall Mounted B
Console, Cassette
Floor / Ceiling,
Ducted
Line Set sizes of outdoor connection
SMZ42H46ZOGX
Liquid
Suction
Note: When the indoor line set requires the different size from the outdoor connection, please follow the line
set size of indoor unit. An adaptor is required to connect the line set to outdoor unit.
Pipe
Ordinary
Figure 11a
Refrigerant Tubing
1. After the outside unit is secured to the mounting location (Pad, Wall Brackets, etc.), route the line sets from
the Indoor unit to the outdoor unit, and secure with clamps or Plastic-Duct as required.
Installation Notes:
 This unit is designed to run two, three, four or five indoor units. DO NOT use this system with one
indoor unit. (See page 7)

The outdoor unit is supplied with a sufficient refrigerant charge of R410A for a maximum Design
Length, no extra refrigerant required. Beyond this length additional refrigerant is required and must be
weighted in. (see specifications)
Indoor unit contains a small quantity of nitrogen. DO NOT remove the caps until the tubing is ready to be
installed.
NOTE: An oil trap is recommended to be installed if the indoor unit is over 15 feet in height from the outdoor
unit. To prevent kinking, bend tubes using a tubing tool.
CAUTION! WHEN REMOVING THE VALVE CAPS, DO NOT STAND IN FRONT OF VALVES, AS THE
SYSTEM IS UNDER HIGH PRESSURE.
CAUTION! DO NOT BRAZE TUBING OR USE THREAD SEALANT. USE FLARE CONNECTIONS ONLY.
Line set can now be cut (if necessary), to the proper length. Cut the tubing a little longer than measured
2.
distance. Completely remove all burrs from the cross cut section of tubing. Do not allow debris to fall into
copper tube. It is extremely important to clean the copper tubing prior to connecting to system.
950-0203-revK

CONNECTING LINE SET

Capacity Liquid Line
9K
12K, 18K
9K, 12K
18K
24K
9K, 12K
18K
21K, 24K
Port A Port B
3/8" 1/4"
5/8" 1/2"
Flare Nut
Suction Line
1/4" 3/8"
1/4" 1/2"
1/4" 3/8"
1/4" 1/2"
1/4" 5/8"
1/4" 3/8"
1/4" 1/2"
3/8" 5/8"
Port C
1/4"
1/2"
Adaptor may be
bent up to a 90
degree angle if
necessary.
- 12 -
Adapter
1/2" F to 3/8" M adapter included
3/8" F to 1/2" M adapter included
1/2" F to 3/8" M adapter included
3/8" F to 1/2" M adapter included
N/A
1/2" F to 3/8" M adapter included
3/8" F to 1/2" M adapter included
N/A
Port D Port E
1/4"
3/8"
Adaptor
Figure 11b
March 1, 2016
1/4"
3/8"