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Maintenance
Water temperature range
Operate the product within the following range. For
product protection, compressor operation may be
limited.
Rated
condition
Classification
(inlet/
outlet)
Cooling
12/7 °C
Heating
40/45 °C
When using in brine condition in cooling mode,
maintain concentration of brine properly. Also, the
product should be set in low temperature usage. (Refer
to page 46 for how to set hydro controller option.)
Apply freeze prevention (such as pump operation,
inserting brine, using brine, etc.) to use water that is
not brine when outdoor temperature is below zero.
To use low temperature function, hydro controller
option and Seg23 "E" should be all set.
Anti-freeze standard data
- Make sure if brine is charged enough in water
system.
Water outlet
temperature, °C
Ethylene glycol,
%
Propylene glycol,
%
Minimum
water outlet
temperature, °C
74
English
Range (water outlet)
Water
Brine
5 °C ~
-10 °C ~
25 °C
25 °C
25 °C ~ 55 °C
- 10
- 5 ~
0 ~ 2 2 ~ 5
~ - 5
0
40
30
20
10
40
35
25
15
-10
-5
0
2
Cooling
Outdoor temperature
48 °C
43 °C
-15 °C
-10 °C
Heating
Outdoor temperature
43 °C
-5 °C
-25 °C
5 ~
20
Freeze prevention
0
Necessity of freeze prevention
0
When outdoor temperature is low or in winter time,
water in pump and water pipe may freeze and may
5
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.
Anti-freeze
Water
condition
condition
Outlet
temperature
5 °C
25 °C
Outlet
temperature
25 °C
45 °C
55 °C
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