Hydro-Air Components, Inc., manufacturer of the
Rittling product line, guarantees this product to be
free from defects in material and workmanship for
a period of two years from date of shipment from
our Buffalo, New York factory.
Should there be any defects in the good(s), the
purchaser should promptly notify Hydro-Air
Components, Inc. and upon receipt of written
consent from Hydro-Air Components, Inc., the
purchaser shall return the defective good(s) to
the factory for inspection with freight prepaid. If
inspection shows the goods to be defective,
Hydro-Air Components, Inc. will at its discretion
repair or replace the said item(s).
Defects arising from damage due to shipment,
improper installation, negligence or misuse by
others are not covered by this warranty.
This warranty is extended only to the original
purchaser from Hydro-Air Components, Inc.
WARRANTY
£ääÊ,ÌÌ}ÊÛ`°ÊÊUÊÊÕvv>]Ê 9Ê£{ÓÓä
*i\ÊÇ£ÈnÓÇÈx£äÊÊUÊÊ>Ý\ÊÇ£ÈnÓÇÈxÓÎÊÊ
Toll-Free: 800-FIN-TUBE (800-346-8823)
>\ÊÃ>iÃJÀÌÌ}°VÊÊUÊÊÜÜÜ°,ÌÌ}°VÊ Ê UH_IOM_0309
Hydro-Air Components Inc., in it’s continuous product
improvement program, reserves he right to change any and all
information provided in this document without notice.
Maintenance: (con’t.)
COILS
A. Cleaning
Clean coil at least once a year, more often under unfavorable
conditions. Unless coil is kept reasonably free of dirt, lint and
grease, its original heating capacity will be reduced — possibly to
a serious degree, and motor damage may result. Two commonly
used cleaning methods are:
Loosen dirt by brushing fins on side where air enters coil and 1.
then turn on fan to blow dirt from unit.
Use high-pressure air hose to loosen dirt by blowing from 2.
side where air leaves coil (side adjacent to louvers on blow-
through units (RH); side adjacent to fan on draw-through
units (RV)). For thorough cleaning of coil, remove motor
and fan and spray a mild alkaline cleaning solution over the
coil. After a few minutes, follow by a hot water rinse. (A
steam gun can be used for spraying cleaning solution and hot
water.) Coils subjected to corrosive fumes should be checked
and cleaned frequently.
B. Internal Corrosion Safeguards
Provide controlled water treatment — don’t use excess of boiler
compounds. Contact your boiler compound supplier for proper
usage or the services of a water treatment laboratory. Periodic
internal flushing of the coils is recommended in areas where
water supply is suspected of causing scale. Use an alkaline-
chelant solution and introduce it at the main pump of the
hydronic system. Flush thoroughly.
WARNING: USING INORGANIC OR MINERAL ACIDS SUCH AS
MURIATIC (HYDROCHLORIC) ACID, EVEN THOUGH INHIBITED, MAY
LEAD TO SEVERE DAMAGE, INCLUDING CORROSION AND LEAKAGE.
De-aerate boiler feed-water (particularly if large amount of new
water is used). Ensure rapid continuous and adequate condensate
drainage by properly sized and installed traps and piping. Check
traps for sticking. Clean strainers ahead of traps. (When traps
don’t work, condensate accumulates in unit heater coil; water
hammer results.) Adequately vent each unit. Use low-pressure
steam when possible.
THE EQUIPMENT COVERED IN THIS MANUAL SHOULD BE
INSTALLED, MAINTAINED AND SERVICED BY A QUALIFIED LICENSED
TECHNICIAN. FOR SERVICE, CONTACT YOUR LOCAL LICENSED
QUALIFIED INSTALLATION AND SERVICE CONTRACTOR OR
APPROPRIATE UTILITY COMPANY.