Mitsubishi Electric CRHV-P600YA-HPB Service Handbook page 35

[ II Restrictions ]
* Connect the heat source piping in reverse if the inlet temperature of heat source fluid is 27 °C or more.
(heat source fluid inlet is lower side, outlet is upper side) Install the attached label as shown below if the heat source fluid is
connected in reverse.
HWE1312A
INLET
Brine quality management
ethyleneglycol 35wt%. To protect the heat exchanger from freezing,use the
Always use organic brine for this unit, and
maintain brine's freezing temperature below -18°C.
Water quality management
(Including water used for brine.)
To protect the heat exchanger from corrosion, the makeup
water and the circulating water need to meet the Water Quality
Standards below.
Makeup Water/Circulating Water Quality Standards
<Quoted from the Water Quality Standards(JRA GL-02-1994)>
Standard value
Circulating water Circulating water
Item Makeup [above 20°C, [above 60°C,
water 60°C or below] 90°C or below]
pH (25°C) 7.0~8.0 7.0~8.0 7.0~8.0
Electrical conductivity (mS/m)(25°C) 30 or less 30 or less 30 or less
Chloride ion(mgCl-/l) Sulfate ion (mgSO -/l) 30 or less 30 or less 50 or less 50 or less 30 or less 30 or less
Acid consumption (pH4.8)(mgCaCO 42 3 /l) 50 or less 50 or less 50 or less
Total hardness (mgCaCO 3 /l) 70 or less 70 or less 70 or less
Calcium hardness (mgCaCO Ionic silica (mgSiO /l) 3 /l) 30 or less 50 or less 50 or less 30 or less 50 or less 30 or less
Iron (mgFe/l) 2 0.3 or less 1.0 or less 1.0 or less
Copper (mgCu/l) -/l) 0.1 or less 1.0 or less 1.0 or less
Ammonium ion (mgNH Sulfide ion (mgS 2 /l) Not to be detected 0.1 or less Not to be detected 0.3 or less Not to be detected 0.1 or less
Residual chlorine (mgCl/l) 4+ 0.3 or less 0.25 or less 0.1 or less
Free carbon dioxide(mgCO 2 /l) 4.0 or less 0.4 or less 0.4 or less
Stability index
Installing the strainer (inlet side)
To prevent clogging the heat exchanger,install a strainer
at the heat exchanger inlet.(16-20 mesh)
OUTLET
KC79M182H01
Brine inlet/outlet
- 28 -
Accessory label (OUTLET)
OUTLET
Brine quality management
To protect the heat exchanger from freezing,use the
ethyleneglycol 35wt%.
Always use organic brine for this unit, and
maintain brine's freezing temperature below -18°C.
Water quality management
(Including water used for brine.)
To protect the heat exchanger from corrosion, the makeup
water and the circulating water need to meet the Water Quality
Standards below.
Makeup Water/Circulating Water Quality Standards
<Quoted from the Water Quality Standards(JRA GL-02-1994)>
Standard value
Circulating water Circulating water
Item Makeup
[above 20°C, [above 60°C,
water
60°C or below] 90°C or below]
pH (25°C) 7.0~8.0 7.0~8.0 7.0~8.0
Electrical conductivity (mS/m)(25°C) 30 or less 30 or less 30 or less
Chloride ion(mgCl - /l)
30 or less 50 or less 30 or less
- /l)
Sulfate ion (mgSO 2 30 or less 50 or less 30 or less
4
Acid consumption (pH4.8)(mgCaCO /l) 50 or less 50 or less 50 or less
3
Total hardness (mgCaCO /l) 70 or less 70 or less 70 or less
3
Calcium hardness (mgCaCO /l) 50 or less 50 or less 50 or less
3
Ionic silica (mgSiO /l) 30 or less 30 or less 30 or less
2
Iron (mgFe/l) 0.3 or less 1.0 or less 1.0 or less
Copper (mgCu/l) 0.1 or less 1.0 or less 1.0 or less
- /l)
Sulfide ion (mgS 2 Not to be detected Not to be detected Not to be detected
Ammonium ion (mgNH + /l) 0.1 or less 0.3 or less 0.1 or less
4
Residual chlorine (mgCl/l) 0.3 or less 0.25 or less 0.1 or less
Free carbon dioxide(mgCO /l) 4.0 or less 0.4 or less 0.4 or less
2
Stability index
Installing the strainer (inlet side)
To prevent clogging the heat exchanger,install a strainer
at the heat exchanger inlet.(16-20 mesh)
INLET
KC79M182H01
Accessory label (INLET)
GB