Operation Range; Main Components; Selection Of Location - Daikin EWYQ080DAYN Installation Manual

Features
■
Factory mounted main switch
■
Factory mounted flow switch and water filter
■
Read out of refrigerant pressures (high and low) via controller
■
High (partial load) efficiency
■
Electronic expansion valve + sight glass with moisture indication
■
Voltage free contacts
• general operation
• pump contact
• second pump contact for dual pump function
• safety + warning signal (normal open or normal closed
contact)
• 100% capacity signal, full capacity signal
• operation circuit 1
• operation circuit 2 (only for EWYQ130~250)
■
Remote inputs
• remote on-off
• dual setpoint
• capacity limitation (different settings possible)
• low noise (only for option OPIF)
• free cooling signal
• fan forced on signal
■
Changeable analogue inputs
• floating setpoint (mA, V, NTC)
• additional water temperature measurement (NTC)
■
Changeable analogue outputs
• unit capacity (mA, V)
O
PERATION RANGE
EWYQ080+100 + 180~250
AT
°C
50
45
43
40
35
30
25
21
20
15
10
5
0
-5
-10
-15
-20
OPZL OPZL STD STD STD STD
-10 -5 0 5 10 15 15 15 20 25 30 35 4045 50 55
Cooling mode
Heating mode
AT Ambient temperature
LWT Leaving evaporator
water temperature
STD Standard unit
OPIF Option inverter fans
OPZL Option glycol application
for leaving evaporator
water down to –10°C
Installation manual
2
EWYQ130+150
AT
°C
50
45
43
40
35
30
25
21
20
15
10
9
5
0
-5
-10
-15
-20
OPZL OPZL STD STD STD STD
-10 -5 0 5 10 15 15 15 20 25 30 35 4045
LWT
°C
Pull down operation area
Continuous operation
area
Protect the water circuit
against freezing by
heater tape (OP10) or by
filling up the system with
a glycol solution
Option inverter fans
(OPIF)
M
AIN COMPONENTS
the unit)
1 Evaporator (in cooling
mode) or condenser (in
heating mode)
2 Condenser (in cooling
mode) or evaporator (in
heating mode)
3 Compressor
4 Electronic expansion
valve + sight glass with
moisture indication
5 Discharge stop valve
(optional)
6 Suction stop valve
(optional)
7 Liquid stop valve
(optional)
8 Chilled water in
(Victaulic
9 Chilled water out
(Victaulic
10 Water drain evaporator
11 Air purge
12 Leaving water
temperature sensor (R3T)
13 Entering water
temperature sensor (R2T)
14 Ambient temperature
sensor (R1T)
15 Drier + charge valve
16 Power supply intake
17 Switchbox
Required space around the unit for service and air intake
Centre of gravity
S
ELECTION OF LOCATION
This is a class A product. In a domestic environment this product may
cause radio interference in which case the user may be required to
take adequate measures.
Make sure that the unit is not accessible by the general public.
The units are designed either for roof mounting or ground level
mounting and should be installed in a location that meets the
following requirements:
50 55
LWT
1 The foundation is strong enough to support the weight of the unit
°C
and the floor is flat to prevent vibrations and noise generation.
2 The space around the unit is adequate for servicing and the
minimum space for air inlet and air outlet is available (refer to the
paragraph "Description" in the operation manual).
If several units are being installed side by side, the minimum
service space between these must be taken into account.
3 There is no danger of fire due to leakage of inflammable gas.
4 The equipment is not intended for use in a potentially explosive
atmosphere.
5 Ensure that water cannot cause any damage to the location by
adding water drains to the foundation and prevent water traps in
the construction.
6 Select the location of the unit in such a way that neither the
discharged air nor the sound generated by the unit disturb
anyone.
7 Make sure that the air inlet and outlet of the unit are not
positioned towards the main wind direction. Frontal wind will
disturb the operation of the unit. If necessary, use a windscreen
to block the wind.
8 In heavy snowfall areas, select an installation site where snow
will not affect operation of the unit.
(refer to the outlook diagram supplied with
18 Digital display controller
(inside switchbox)
19 Field wiring intake
20 Main isolator switch
21 Transport beam
22 Flow switch
23 Fan
24 Safety valve
25 High pressure sensor
26 Low pressure sensor
27 High pressure switch
28 Oil sight glass
29 Water filter
30 Frame
31 4-way valve
®
coupling)
32 Liquid receiver
33 Pump (optional)
®
coupling)
34 Buffer tank (optional)
35 Expansion vessel
(optional)
36 Water stop valves
(optional)
37 Buffer tank drain valve
(optional)
38 Regulating valve
(optional)
39 Water safety valve
(optional)
40 Pressure gauge (optional)
41 Eye bolt for lifting the unit
(only for EWYQ080~210)
Packaged air-cooled water chillers
EWYQ080~250DAYN
4PW35559-1D – 03.2011