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pH value (25 ° C)
Conductivity (25 ℃ )
-
Cl
Standard
2-
item
SO
Acid
(pH=4.8)
Full hardness
Fe
2-
Reference
S
item
+
NH
SiO
2
Note: ○ indicates relevant factors that are inclined to corrosion or scale formation.
WIRING
1. Wiring connection must be done according to the wiring diagram on the unit.
2. A breaker device must be installed at power supply incoming line, it should have at least 3mm contact
separation.
3. The unit must be
4. An appropriate strain relief device must be used to attach the power wires to the terminal box.
5. A 5/8" hole is designed on the terminal box for field installation of the strain relief device.
6. Field wiring must be complied with the national security regulations.
7. A main switch or other means for disconnection, having a contact separation in all poles, must be
incorporated in the fixed wiring in accordance with the relevant local and national legislation.
8. Unit cannot be parallel connected for electric wiring, or it may cause motor burning.
9. When unit fan motor stops running and continuous chilled water supply for long may cause unit
condensation. Please install electric valve and thermostat to ensure properly working.
10. Under the rated air flow, the total resistance of all external duct and other accessories should be
40-100Pa.
OPERATING LIMITS
Water Circuit
Minimum water-side pressure
Maximum water-side pressure
Minimum entering water temperature
Maximum entering water temperature
Water flow rate
Recommend operation range
Maximum ESP
Minimum ESP
Power supply
Nominal single-phase voltage
Operating voltage limits
Operating frequency limits
Power cord type
Wire size
An all-pole disconnection device which has at least 3mm clearances in all poles ,and have a leakage current that
may exceed 10mA,the residual current device (RCD) having a rated residual operating current not exceeding
30mA,and disconnection must be incorporated in the fixed wiring in accordance with the wiring rules.
Item
µS/cm
mg(Cl
mg(SO
consumption
mg(CaCO
mg(CaCO
mg(Fe)/L
mg(S
mg(NH
mg(SiO
GROUNDED
well.
Base Value
6.5 ~ 8.0
< 800
-
)/L
< 200
2-
)/L
< 200
)/L
< 100
3
)/L
< 200
3
< 1.0
2-
)/L
0
+
)/L
< 1.0
)/L
< 50
2
OPERATING LIMITS
0.01 MPa
1.6 MPa
5°C(cooling)
25°C(cooling)
0.1~2.1m³/h
16~36°C(cooling)
100Pa
40Pa
220-240V~ / 50 Hz
± 10% Volt
± 1 Hz
H05VV-F
AWG16 (or 1.5mm²)
4
Tendency
Corrosion
Scale Formation
○
○
○
○
○
○
○
○
○
○
○
○
○
FWW-DA
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