Step 3 - Connect Refrigerant Piping And Wiring - Carrier 38VMH Series Installation And Maintenance Instructions Manual

Outdoor unit for single-phase variable refrigerant flow (vrf) heat pump systems
Table of Contents

Advertisement

NOTE: All dimensions shown in inches.
Fig. 3 — Single Unit Installation
NOTE: All dimensions shown in inches.
Fig. 4 — Multiple or Parallel Unit Installation
HANDLING THE UNIT — To avoid overturning the unit,
the angle of inclination should not be more than 15 degrees
when carrying the unit
.
LIFTING UNIT WITH CABLES — Make sure the lifting
cables can withstand the weight of the unit. Use 2 cables.
Make sure each cable is at least 26.3 feet long to avoid
excess tension and force on the surfaces of the unit. To
avoid damage while lifting the unit, do not remove the
original packaging or unscrew from its original pallet.
Connect lifting cables diagonally as shown in Fig. 5 below.
Note the center of gravity in Fig. 5 below, which results
from the weight of the compressor and other components
located within the right-end section of the unit.
DANGER
DO NOT stand below unit while it is suspended in the air.
If unit were to fall, it may lead to personal injury or death.
Fig. 5 — Lifting the Unit
CONCRETE BASE REQUIREMENTS
• The unit's base must be made of solid concrete.
• Ensure that the base is level and that the weight of the
unit is distributed evenly. See Fig. 6 below for reference.
Fig. 6 —Concrete Base
• Create an outlet near the base for drainage. Refer to
Fig. 7 below for main drain connection.
Fig. 7 —Drain Connections
• Ensure the roof can handle the unit weight if mounted on
the roof.
Step 3 — Connect Refrigerant Piping and
Wiring —
Refrigerant pipe connections are made on the side
of the unit. Remove the L-shaped metal plate, and route piping
through the exposed opening. Route power and control wiring
through the two separate, adjacent knockouts. See Fig. 8 for
details.
INSULATION — Liquid lines and suction lines must be
insulated separately. Closed-cell insulation with fire-retardant
properties is recommended.
• For copper pipes less than
insulation thickness is
• For copper pipes equal to or greater than
the recommended insulation thickness is
5
/
inch. OD, recommended
1
2
/
inch.
1
2
/
inch. OD,
5
8
/
inch.
3
4

Advertisement

Table of Contents
loading

This manual is also suitable for:

38vmh036 series38vmh060 series38vma036hds3-1

Table of Contents