Daikin EWAQ016BAW, Инструкция по установке и эксплуатации

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Installation and operation manual
23
EWAQ016~ EWYQ016~064BAW
Packaged air-cooled water chiller
4PW70082-1C – 2013.07
5.5. Service and maintenance
In order to ensure optimal operation of the unit, a number of checks
and inspections on the unit and the field wiring have to be carried out
at regular intervals.
This maintenance should be carried out by your local installer.
To execute maintenance first remove the panels as shown in
"4.2.2. Opening the unit" on page 7.
5.5.1. Maintenance activities
Checks
The described checks must be executed at least once a year by
qualified personnel.
1 Pressure relief valve hose (if present)
Check that the pressure relief valve hose is positioned
appropriately to drain the water.
2 Water pressure relief valve
Check for correct operation of the pressure relief valve by
turning the red knob on the valve counter-clockwise:
■
If you do not hear a clacking sound, contact your local dealer.
■
In case the water keeps running out of the unit, close both
the water inlet and outlet shut-off valves first and then contact
your local dealer.
3 Switch box
Carry out a thorough visual inspection of the switch box and look
for obvious defects such as loose connections or defective
wiring.
4 Water pressure
Check if the water pressure is above 1 bar.
If necessary add water.
5 Water filter
Clean the water filter.
6 In case of use of glycol
(Refer to Caution: "Use of glycol" on page 11)
Document the glycol concentration and the pH-value in the
system at least once a year.
■
A pH-value below 8.0 indicates that a significant portion of
the inhibitor has been depleted and that more inhibitor needs
to be added.
■
When the pH-value is below 7.0 then oxidation of the glycol
occurred, the system should be drained and flushed
thoroughly before severe damage occurs.
Make sure that the disposal of the glycol solution is done in
accordance with the applicable legislation.
5.5.2. Error codes
5.5.3. Important information regarding the refrigerant
used
This product contains fluorinated greenhouse gases covered by the
Kyoto Protocol. Do not vent gases into the atmosphere.
Refrigerant type: R410A
GWP
(1)
value: 1975
(1)
GWP = global warming potential
DANGER: ELECTRICAL SHOCK
See "2. Precautions for installation" on page 3.
WARNING: ELECTRIC SHOCK
■
Before carrying out any maintenance or repair activity,
always switch off the circuit breaker on the supply
panel, remove the fuses or open the protection
devices of the unit.
■
Do not touch live parts for 10 minutes after the power
supply is turned off because of high voltage risk.
■
Please note that some sections of the electric
component box are hot.
■
Make sure you do not touch a conductive section.
■
Do not rinse the unit. This may cause electric shocks
or fire.
Play it safe!
Touch a metal part by hand (such as the stop valve) in
order to eliminate static electricity and to protect the PCB
before performing service.
Error code Failure cause Corrective action
A1
Failure of writing memory
(EEPROM error) Contact your local dealer.
A6
Malfunction water circuit • Make sure waterflow is
possible (open all valves in
the circuit).
• Force clean water through
the unit.
A9
R410A expansion valve error
(K11E/K21E) • Check wiring connections.
• Contact your local dealer.
AE
Water system warning • Check filter.
• Make sure all valves are
open.
• Contact your local dealer.
AJ
Capacity error Contact your local dealer.
C1
Bad ACS communication Contact your local dealer.
C4
R410A liquid thermistor error
(R13T/R23T) • Check wiring connections.
• Contact your local dealer.
C9
Returning water thermistor
error (R12T/R22T) • Check wiring connections.
• Contact your local dealer.
CA
Heating leaving water
thermistor error (R11T/R12T) • Check wiring connections.
• Contact your local dealer.
CJ
Remote controller thermostat
thermistor error Contact your local dealer.
E3
High pressure error
(SENPH/S1PH) • Make sure the circuit is
filled with water (no air
inside, e.g. is the air purge
open?)
• Make sure water flow is
possible (open all valves in
the circuit).
• Make sure the water filter is
not blocked.
• Make sure all refrigerant
stop valves are open.
• Contact your local dealer.
E4
Low pressure error (SENPL) Contact your local dealer.
J7
R410A suction thermistor
error (R14T/R24T) • Check wiring connections.
• Contact your local dealer.
U1
The phases of the power to
the unit is reversed. Exchange two of the three
phases (L1, L2, L3) to make a
positive phase connection.
U2
Power supply error • Check wiring connections.
• Contact your local dealer.
UA
Type connection problem • Wait till initialisation
between outdoor module
and hydro module finished
(after power ON, wait at
least 12 minutes).
• Contact your local dealer.
UH
Address error Contact your local dealer.
4PWEN70082-1C.book Page 23 Wednesday, September 25, 2013 7:31 AM