46
Section 22. Start Up
22.1 System Charge Adjustments
The following combinations should be charged to 8
degrees sub-cooling to maintain ratings.
Indoor Unit Model No. Outdoor Unit Model No.
GAM5B0A18M11EB 4A6B4018E1
4A6H5018E1
GAM5B0A24M21EB 4A6B4024E1
4A6H5024E1
GAM5B0B36M31EB 4A6B4036E1
4A6H5036E1
GAM5B0C42M31EB 4A6B4042E1
4A6H5042E1
GAM5B0C48M41EB 4A6B4048E1
4A6H5048E1
4A6B4049E1
4A6H5049E1
GAM5B0C60M51EB 4A6B4060E1
4A6H5060E1
4A6B4061E1
4A6H5061E1
All other non-rated matches must be charged
per the nameplate charging instructions.
The following combinations should be charged to 8
degrees sub-cooling to maintain ratings.
Indoor Unit Model No. Outdoor Unit Model No.
GAM5B0A18M11EB 4TWB4018E1
4TWR5018E1
GAM5B0A24M21EB 4TWB4024E1
4TWR5024E1
GAM5B0B36M31EB 4TWB4036E1
4TWR5036E1
GAM5B0C42M31EB 4TWB4042E1
4TWR5042E1
GAM5B0C48M41EB 4TWB4048E1
4TWR5048E1
4TWB4049E1
4TWR5049E1
4TWX5049E1
GAM5B0C60M51EB 4TWB4060E1
4TWR5060E1
4TWB4061E1
4TWR5061E1
4TWX5061E1
All other non-rated matches must be charged
per the nameplate charging instructions.
Section 21. Filters
21.1 Filter Considerations
Filter in
air handler cabinet
(Upflow
Application)
Block off
plate
• A filter must be installed within the system.
• A filter channel is provided in the unit, at the
bottom of the Blower/Filter compartment.
• For customer ease of fil ter maintenance, it is
recommended that a properly sized remote filter
grill(s) be installed for units that are difficult to
access. Airflow should not exceed the maximum
rated velocity of the filter being used.
Cabinet Size* A B C
Filter Size 16 x 20 20 x 20 22 x 20
* Cabinet size is indicated by the 7th digit in model number.
Table 21.1 Filter Sizes