General • Inspections

CGAM Air-Cooled Scroll Chiller: Condenser Maintenance (6 months)

Semi-annual maintenance is a simple and cost-effective way to ensure your HVAC system is running at peak efficiency and to catch problems before they get serious.

MaintainX

08/10/2022

CGAM Air-Cooled Scroll Chiller: Condenser Maintenance (6 months)

Semi-annual maintenance is a simple and cost-effective way to ensure your HVAC system is running at peak efficiency and to catch problems before they get serious.

Microchannel Condensers

For proper operation, microchannel condenser coils must be cleaned regularly. Eliminate pollution and other residual material help to extend the life of the coils and the unit.

Regular coil maintenance, including annual cleaning, enhances the unit’s operating efficiency by minimizing compressor head pressure and amperage draw. The condenser coil should be cleaned at minimum once each year, or more if the unit is located in a “dirty” or corrosive environment.

NOTICE: Equipment Damage!

Do not use detergents to clean coils. Use clean water only. Use of detergents on coils could cause damage to coils.

Cleaning with cleansers or detergents is strongly discouraged due to the all-aluminum construction. Water should prove sufficient. Any breach in the tubes can result in refrigerant leaks.

! WARNING

Hazardous Voltage!

Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/ tagout procedures to ensure the power can not be inadvertently energized. Failure to disconnect power before servicing could result in death or serious injury.

Microchannel Condenser Coil Cleaning

Disconnect Power to the unit.
Use a soft brush or vacuum to remove base debris orsurface loaded fibers from both sides of the coil.
Note: When possible, clean the coil from the opposite direction of normal air flow (inside of unit out) to push debris out.

Using a sprayer and water ONLY, clean the coil following the guidelines below.

Sprayer nozzle pressure should not exceed 580 psi.
The maximum source angle should not exceed 25° to the face of the coil. See Figure 87. For best results spray the micro channel perpendicular to face of the coil.
Spray nozzle should be approximately 1”-3” from the coil surface.
Use at least a 15º fan type of spray nozzle.

FIG. 87

Note: To avoid damage from the spray wand contacting the coil, make sure the 90º attachment does not come in contact with the tube and fin as abrasion to the coil could result.

Important: Bridging between the main supports required before attempting to enter the unit. Bridging may consist of multiple 2 by 12 boards or sheet metal grating.

Repair/Replacement of Microchannel Coil

Microchannel coils are considerably more robust in design than tube and fin condenser coils, however they are not indestructible. When damage or a leak occurs, contact your local Trane office.

Source: MaintainX (Community Member)

Microchannel Condensers

For proper operation, microchannel condenser coils must be cleaned regularly. Eliminate pollution and other residual material help to extend the life of the coils and the unit.

Regular coil maintenance, including annual cleaning, enhances the unit’s operating efficiency by minimizing compressor head pressure and amperage draw. The condenser coil should be cleaned at minimum once each year, or more if the unit is located in a “dirty” or corrosive environment.

NOTICE: Equipment Damage!

Do not use detergents to clean coils. Use clean water only. Use of detergents on coils could cause damage to coils.

Cleaning with cleansers or detergents is strongly discouraged due to the all-aluminum construction. Water should prove sufficient. Any breach in the tubes can result in refrigerant leaks.

! WARNING

Hazardous Voltage!

Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/ tagout procedures to ensure the power can not be inadvertently energized. Failure to disconnect power before servicing could result in death or serious injury.

Microchannel Condenser Coil Cleaning

Disconnect Power to the unit.

Use a soft brush or vacuum to remove base debris orsurface loaded fibers from both sides of the coil.

Note: When possible, clean the coil from the opposite direction of normal air flow (inside of unit out) to push debris out.

Using a sprayer and water ONLY, clean the coil following the guidelines below.

Sprayer nozzle pressure should not exceed 580 psi.

The maximum source angle should not exceed 25° to the face of the coil. See Figure 87. For best results spray the micro channel perpendicular to face of the coil.

Spray nozzle should be approximately 1”-3” from the coil surface.

Use at least a 15º fan type of spray nozzle.

FIG. 87

Note: To avoid damage from the spray wand contacting the coil, make sure the 90º attachment does not come in contact with the tube and fin as abrasion to the coil could result.

Important: Bridging between the main supports required before attempting to enter the unit. Bridging may consist of multiple 2 by 12 boards or sheet metal grating.

Repair/Replacement of Microchannel Coil

Microchannel coils are considerably more robust in design than tube and fin condenser coils, however they are not indestructible. When damage or a leak occurs, contact your local Trane office.