MAINTENANCE
Maintenance
70
English
Cooling
48 (118)
°C (°F)
°C (°F)
43 (109)
-15 (5)
-10 (14)
5 (41)
25 (77)
Outlet
temperature
Outdoor temperature
Anti-freeze
condition
Water
condition
°C (°F)
°C (°F)
Heating
43 (109)
-5 (23)
-25 (-13)
25 (77)
55 (131)
45 (113)
Outdoor temperature
Outlet
temperature
Freeze prevention
Necessity of freeze prevention
When outdoor temperature is low or in winter time,
water in pump and water pipe may freeze and may
cause damage to the product and the pipe. Insulate
the pump and pipe to prevent freezing. If there are
possibility of freezing, operate the pump while the
product is off and drain water inside the pump and
water pipe.
Freeze prevention of water pipe
Follow the list if draining water inside the pump and
water pipe is difficult.
Using brine
f
Use ethylene glycol, propylene glycol, etc. for brine.
Ethylene glycol is inexpensive, and used for general
industry, and propylene glycol is used for food
industry since it is nontoxic.
f
All the circulating water (brine) and additives
(corrosion inhibitor, bacteria inhibitor, foam
inhibitors) must be used after consulting with the
business ordering party or supervisor for its impact
on environment, toxicity, corrosiveness, harmfulness
to human and management plan.
f
Contractor must take extra care regarding on
handling, packaging and transporting regulations and
procedure of the brine.
f
Do not use the brine that is harmful to humans or
equipment. In addition, brine must be injected to the
pipe according to specification and concentration
level that is actually required by system. (Do not
directly inject undiluted solution, consult business
ordering party or supervisor when undiluted solution
was brought to the site)
f
Before injecting the brine, evacuate any air that may
remain in the system and apply pressure to check for
leakage.
f
User must monitor and manage periodically to
maintain initially designed concentration level of
brine. If the concentration level decreases due to
leakage or over certain period of time, it may cause
due to pipe to freeze and burst.
Summary of Contents for AG010KSV Series
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