INGENIA CAH, Installation, Operation And Maintenance Manual, Page: 38 / 45

Installation, Operation and Maintenance Manual for Ingenia Outdoor Units CAH-OD-16-00
38
10.0 Service and Maintenance
10.1 Bearing Lubrication
A. Refer to the OEM IOM of the fan and motor for the proper type of grease necessary for
the specific use of the component. Greasing intervals shall vary with operation schedules.
Grease shall be applied slowly until there is a slight bleeding from the seals. Any excess grease
should be wiped off to prevent overheating. Motors are normally pre-greased with Polyrex EM
(Exxon Mobil).
Lubricate with a high quality NLGI No. 2 lithium-base grease having rust inhibitors and a n t i -
oxidant additives, and a minimum oil viscosity of 500 SUS at 100°F (38°C). Lubricate bearings
prior to extended shutdown or storage and rotate shaft monthly to aid corrosion p r o t e c t i o n .
(SEE APPENDIX C for TCF and Greenheck fans IOM). Some greases that have the properties
mentioned above are:
Exxon Mobil—Polrex EM (for electric motors)
Shell Oil Company—Gadus S2 V100 2 (for fan bearings)
Exxon—Ronex MP (for fan bearings)
Mobil Oil Comapny—Mobilith SHC100/SHC220 (for fan bearings)
MIXING DISSIMILAR GREASES IS NOT RECOMMENDED.
10.2 Unit Cleaning
A. Units shall be thoroughly cleaned annually especially for pharmaceutical or hospital grade
applications. A standard unit with a galvanized steel inner liner can be wiped down using a
cloth. Units supplied with a white antimicrobial powder coated paint can be easily cleaned us-
ing water and a cloth. Units with a stainless steel inner liner can be cleaned using a steam
cleaner to disinfect the surface and a cloth to wipe away any dirt. It should be standard prac-
tice to clean the unit at a regular interval whatever the application.
10.2.1 Coil Cleaning
A. If UV lights are not included in the scope of the project, then the coils shall be cleaned
annually using an approved coil cleaning product that will not alter its’ metal proper-
ties. It is important to clean inside the fins to remove any potential mould build-up
especially in cooling coils. The benefits of cleaning the coils will also be seen in the
energy savings due to reduced air pressure drop and also increased coil efficiency.
WARNING
Unit power must be turned off before performing any service or maintenance on the unit.