Daikin ECB2MUAW Manual de instalação - Página 5
Procurar online ou descarregar pdf Manual de instalação para Refrigerador Daikin ECB2MUAW. Daikin ECB2MUAW 20 páginas. Packaged water-cooled water chillers
Imprimir página
W
ATER QUALITY SPECIFICATIONS
evaporator water
circulating
water
[<20°C]
Items to be controlled
pH
at 25°C
6.8~8.0
Electrical
[mS/m]
<40
conductivity
at 25°C
–
Chloride ion
<50
[mg Cl
/l]
2–
Sulfate ion
[mg SO
/l]
<50
4
M-alkalinity
[mg CaCO
/l]
<50
3
(pH 4.8)
[mg CaCO
/l]
Total hardness
<70
3
Calcium
[mg CaCO
/l]
<50
3
hardness
[mg SiO
/l]
Silica ion
<30
2
Items to be referred to
Iron
[mg Fe/l]
<1.0
Copper
[mg Cu/l]
<1.0
2–
Sulfide ion
[mg S
/l]
+
Ammonium ion
[mg NH
/l]
<1.0
4
Remaining
[mg Cl/l]
<0.3
chloride
[mg CO
/l]
Free carbide
<4.0
2
Stability index
—
A = corrosion
B = scale
C
ONNECTING THE WATER CIRCUIT
The evaporator and condenser are foreseen of GAS male pipe thread
for the water inlet and outlet (refer to the outlook diagram).
Evaporator and condenser water connections are to be made in
accordance with the outlook diagram, respecting the water in- and
outlet.
If air, moisture or dust gets in the water circuit, problems may occur.
Therefore, always take into account the following when connecting
the water circuit:
1.
Use clean pipes only.
2.
Hold the pipe end downwards when removing burrs.
3.
Cover the pipe end when inserting it through a wall so that no dust
and dirt enter.
W
,
ATER CHARGE
FLOW AND QUALITY
To assure proper operation of the unit a minimum water volume is
required in the system and the water flow through the evaporator
must be within the operation range as specified in the table below.
Minimum
water volume (l)
32 Hp
205
36 Hp
268
40 Hp
268
44 Hp
311
48 Hp
311
52 Hp
205
56 Hp
205
60 Hp
268
64 Hp
268
68 Hp
268
72 Hp
311
The water pressure should not exceed the maximum
working pressure of 10 bar.
EWWP045~065KAW1M + ECB2+3MUAW
Packaged water-cooled water chillers
4PW61663-1A - 2012.04
condenser water
circulating
tendency
supply
water
supply
if out of
water
[20°C~60°C]
water
criteria
6.8~8.0
7.0~8.0
7.0~8.0
A + B
<30
<30
<30
A + B
<50
<50
<50
<50
<50
<50
<50
<50
<50
<70
<70
<70
<50
<50
<50
<30
<30
<30
<0.3
<1.0
<0.3
A + B
<0.1
<1.0
<0.1
not detectable
<0.1
<0.3
<0.1
<0.3
<0.25
<0.3
<4.0
<0.4
<4.0
—
—
—
A + B
Minimum
Maximum
water flow
water flow
202 l/min
493 l/min
232 l/min
568 l/min
262 l/min
642l/min
283 l/min
694 l/min
304 l/min
745 l/min
333 l/min
814 l/min
363 l/min
889 l/min
393 l/min
963 l/min
414 l/min
1015 l/min
435 l/min
1066 l/min
456 l/min
1118 l/min
NOTE
Provide adequate safeguards in the water circuit to
make sure that the water pressure will never exceed
the maximum allowable working pressure.
P
IPING INSULATION
The complete water circuit, inclusive all piping, must be insulated to
prevent condensation and reduction of the cooling capacity.
Protect the water piping against water freezing during winter period
A
(e.g. by using a glycol solution or heatertape).
A
B
F
IELD WIRING
B
All field wiring and components must be installed by a
B
licensed electrician and must comply with relevant
European and national regulations.
B
The field wiring must be carried out in accordance with the
wiring diagram supplied with the unit and the instructions
given below.
A
Be sure to use a dedicated power circuit. Never use a
A
power supply shared by another appliance.
A
A
Installing the control box (ECB*MUAW)
A
Follow instructions in "Annex" (32~72 Hp) at the very end of this
manual when installing the control box into the unit.
Parts table
F1,2,3U.................. Main fuses for the unit
H1P........................ Indication lamp alarm
H3P........................ Indication lamp operation compressor
PE .......................... Main earth terminal
S7S........................ Remote cooling/heating change-over valve
S9S........................ Remote start/stop switch
S10L ...................... Flowswitch
S11L ...................... Contact that closes if the pump is working
S12S...................... Main isolator switch
- - - ......................... Field wiring
Power circuit and cable requirements
1
The electrical power supply to the unit should be arranged so
that it can be switched on or off independently of the electrical
supply to other items of the plant and equipment in general.
2
A power circuit must be provided for connection of the unit. This
circuit must be protected with the required safety devices, i.e. a
circuit breaker, a slow blow fuse on each phase and an earth
leak detector. Recommended fuses are mentioned on the wiring
diagram supplied with the unit.
Switch off the main isolator switch before making any
connections (switch off the circuit breaker, remove or
switch off the fuses).
Installation manual
3