Preventative Maintenance - CARNES HBGH Installation, Operation And Maintenance Manual

PREVENTATIVE MAINTENANCE:

RECOMMENDED MONTHLY PREVENTATIVE
MAINTENANCE FOR HUMIDIFIERS
Servicing contractor or maintenance agent - be prepared to:
1. Investigate and observe
2. Recognize issues
3. Determine procedures
4. Implement solutions
5. Inform customers
Preventative Maintenance is not intended to replace quality
manufacturing and assembly from the company of origin.
Products get older, wear and tear occurs, personnel chang-
es and simple attention to detail sometimes becomes lax.
Basic Preventative Maintenance for humidifiers should
be required follow-up for continued proper operation of
products. Preventative Maintenance is a means to prevent
future costly failures.
The following are recommended Preventative Maintenance
procedures for humidifiers on a monthly basis: PLEASE
FOLLOW ALL REQUIRED SAFETY PROCEDURES
BEFORE WORKING ON HUMIDIFIER UNITS.
1. Visually inspect steam hose(s) and condensate hose(s)
for proper routing and installation from humidifier unit.
Prevent sags, dips or kinks in hoses. Eliminate hori-
zontal runs. Make sure of adequate slope up for steam
hose and slope down for condensate return. Correct as
necessary. Recommend no hose lengths longer then 30
to 35 feet. Refer to early pages of this IOM.
2. Visually inspect steam hose and condensate attach-
ment to dispersion pipe or short absorption manifold.
Recommend periodic removal of dispersion systems for
inspection (restricted dispersion holes, damage, plumb
mounting and clamping tightness).
3. Humidifier Unit - inspect internal hoses for sediment
build up or degradation. Clean or replace as neces-
sary. Also, check tightness of hose clamps. Tighten as
necessary.
4. Inspect fill valve strainer. Industrial/Commercial unit
fill valve strainer is located at the connection point of
the water inlet hose to valve. Strainer is located inside
the valve at the threads. Pop out and inspect. Clean
or replace as necessary. Residential Unit - disconnect
inlet hose to solenoid valve assembly, remove solenoid
valve from unit and visually check filter screen inside
inlet port. Clean as necessary.
5. Visually check operation of the drain solenoid valve,
smooth operation and 100% seal when normally closed.
If necessary, remove solenoid valve, disassemble and
clean or replace as necessary.
6. Visually check cylinder for extreme amounts of residue
on the inside surface. Very high level of water or unit
unable to provide full capacity may be an indication
of end of life cycle of the cylinder. Do not attempt to
clean out with chemicals, do not stick screwdrivers or
other objects into cylinder to clean out sediment. These
cylinders are made to be replaced at end of life cycle.
Life Cycle of Cylinder is more often then not deter-
mined by the condition of the water used in the unit,
especially hardness, % of max output, or run time (24/7,
8 hr./day, etc.). Refer to this IOM or main humidifier
catalog for more information.
7. Visually and manually check all wire and plug
connections inside unit. Include the wire connections
to the top of the cylinder. If a Red 90° connector is
used, be sure to check the inside of the connector for
a set screw. This screw needs to be checked for tight-
ness. Make sure control wires at the J16, J17 and J18
terminal connections, bottom of the circuit board, are
tight.
8. Monthly - remove drain air gap and check for any
sediment build up that may block any free flow of water.
These check points for the "H" series humidifier are
basic, but significantly covers the entire unit. Keeping a
Preventative Maintenance record would be recommended
to show maintenance performed and any observations
made during inspection.
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