138
Routine Cleaning of Coil Surfaces
Monthly cleaning with Totaline
®
environmentally balanced coil
cleaner is essential to extend the life of coils. This cleaner is
available from Carrier Replacement parts division as part num-
ber P902-0301 for a one gallon container, and part number
P902-0305 for a 5 gallon container. It is recommended that all
coils, including copper tube aluminum fin, pre-coated fin, cop-
per fin, or e-coated coils be cleaned with the Totaline environ-
mentally balanced coil cleaner as described below. Coil cleaning
should be part of the unit’s regularly scheduled maintenance pro-
cedures to ensure long life of the coil. Failure to clean the coils
may result in reduced durability in the environment.
Avoid the use of:
• coil brighteners
• acid cleaning prior to painting
• high pressure washers
• poor quality water for cleaning
Totaline environmentally balanced coil cleaner is non-flamma-
ble, hypoallergenic, nonbacterial, and a USDA accepted biode-
gradable agent that will not harm the coil or surrounding com-
ponents such as electrical wiring, painted metal surfaces, or in-
sulation. Use of non-recommended coil cleaners is strongly
discouraged since coil and unit durability could be affected.
Totaline Environmentally Balanced Coil Cleaner Application
Equipment
• 2
1
/
2
gallon garden sprayer
• water rinse with low velocity spray nozzle
Totaline Environmentally Balanced Coil Cleaner Application
Instructions
1. Remove any foreign objects or debris attached to the coil
face or trapped within the mounting frame and brackets.
2. Put on personal protective equipment including safety glass-
es and/or face shield, waterproof clothing and gloves. It is
recommended to use full coverage clothing.
3. Remove all surface loaded fibers and dirt with a vacuum
cleaner as described above.
4. Thoroughly wet finned surfaces with clean water and a low
velocity garden hose, being careful not to bend fins.
5. Mix Totaline environmentally balanced coil cleaner in a 2
1
/
2
gallon garden sprayer according to the instructions included
with the cleaner. The optimum solution temperature is
100°F.
NOTE: Do NOT USE water in excess of 130°F, as the enzymatic
activity will be destroyed.
NOTES:
1. Torque set screws on blower
wheel to 70 in. lb ± 2 in. lb.
2. Torque set screw on propeller
fan to 15 in. lb ± 2 in. lb.
3. Dimensions are in inches.
Fig. 44 — Typical Gas Heating Section
CAUTION
Harsh chemicals, household bleach or acid or basic clean-
ers should not be used to clean outdoor or indoor coils of
any kind. These cleaners can be very difficult to rinse out of
the coil and can accelerate corrosion at the fin/tube inter-
face where dissimilar materials are in contact. If there is
dirt below the surface of the coil, use the Totaline environ-
mentally balanced coil cleaner as described above.
CAUTION
High velocity water from a pressure washer, garden hose,
or compressed air should never be used to clean a coil. The
force of the water or air jet will bend the fin edges and in-
crease airside pressure drop. Reduced unit performance or
nuisance unit shutdown may occur.
Summary of Contents for WEATHERMAKER 48A2020
Page 112: ...112 Fig 20 Typical Main Control Box Wiring Schematic 48 50A Units ...
Page 113: ...113 Fig 21 Typical Auxiliary Control Box Wiring Schematic ...
Page 114: ...114 Fig 22 Typical 2 Stage Gas Heat Wiring Schematic Size 060 Units Shown ...
Page 115: ...115 Fig 23 Typical Staged Gas Heat Wiring Schematic Size 060 Units Shown TO NEXT PAGE ...
Page 116: ...116 Fig 23 Typical Staged Gas Heat Wiring Schematic Size 060 Units Shown cont ...
Page 117: ...117 Fig 24 Typical Electric Heat Control Schematic 50 Series Size 060 Units Shown ...
Page 118: ...118 Fig 25 Typical Controls Option Wiring Schematic SW1 SW2 OR DEHUMIDIFY SWITCH ...
Page 119: ...119 Fig 26 Typical Power Schematic 48 50A2 A3 A4 A5 060 Unit Shown ...
Page 120: ...120 Fig 27 Typical Power Schematic of Greenspeed Low Ambient Option 48 50A 060 Unit Shown ...
Page 121: ...121 Fig 28 Typical Small Chassis Component Location Size 020 035 Units ...
Page 122: ...122 Fig 29 Typical Large Chassis Component Locations Size 040 060 Units ...
Page 185: ...185 APPENDIX C VFD INFORMATION cont Fig F Internal Enclosure Fan Replacement A48 7716 ...