Hot Insulation Or Cold Insulation Procedure; Figure 12 - Hot And Cold Insulation; Table 4 - Insulating Material And Thickness; Table 5 - Points Requiring Hot Or Cold Insulation - York YHAU-CW Manual

FORM 155.31-ICOM2.EN.UL
ISSUE DATE: 12/21/2018
HOT INSULATION OR COLD INSULATION
PROCEDURE
1. The recommended materials and their thickness
for hot insulation or cold insulation are shown in
Table 4 on page 35.
2. Use a bonding agent, iron wire, iron band, or other
recommended bonding agents to fix the hot insu-
lation or cold insulation materials. Never rivet the
insulation materials. The use of welding pins is
not permitted.

TABLE 4 - INSULATING MATERIAL AND THICKNESS

MATERIAL Rock wool or glass wool
THICKNESS

TABLE 5 - POINTS REQUIRING HOT OR COLD INSULATION

REQUIRES HOT INSULATION
High Temperature Generator
Heat Exchanger for Drain
Drain Piping
Heat Exchanger
Low Temperature
Point Carrying Hot Insulation Label
COLD
HOT

FIGURE 12 - HOT AND COLD INSULATION

JOHNSON CONTROLS
SECTION 3 – HANDLING, STORAGE, INSTALLATION AND REASSEMBLY
HOT INSULATION
2 inch
REQUIRES COLD INSULATION
Evaporator Shell
Evaporator Water Chamber Case
Refrigerant Spray Piping
Refrigerant Blow Piping
Point Carrying Cold Insulation Label
Valve for vacuuming (factory use
only)
3. Make the outer covering, flanged parts, and evap-
orator water chamber casing easily removable to
facilitate servicing.
4. The points that require hot insulation or cold insu-
lation are shown in the table below.
5. The casing of the absorber and condenser water
chamber does not require hot insulation or cold
insulation. If insulation is used, make it easy to
remove.
6. For the high temperature generator, install insu-
lation in a way that makes it easy to remove the
front, sides, and rear separately.
COLD INSULATION
Polyurethane foam, polystyrene foam, or glass wool
2 inch
MUST NOT BE
HEAT-INSULATED
Valve Manipulator
Pressure Gauge
Thermometer Insertion Hole
Relay Insertion Hole
Sight Glass
LD19977
35
3