4.Use and Ooeration
lnstruction
of Wire
Controller
4.5.Connection of
PCB illustration
4.5.1 Connections
explanation:
No.
Svmbol
Meaninq
I OUTl
Compressor
of system
1
(220-230VAC)
2
OUT2
Water
pump
(220-230VAC)
3
OUT3
4wayvalve
(220-230VAC)
4
OUT4
Hiqh speed
offan motor
(220-230VAC)
5
OUT5
Low speed
offan motor
(220-23OVAC)
6
AC-N
Neutral
wire
7
\ET GND 12
Wire controller
DIOl
GND
On/Off Switch(input)(no
use)
o DIO2
GND
Flow switch
(input)(
normal
close)
10
DIO3 GND
Low
pressure
protect
11
DI04 GND
Hiqh
pressure
protect
12 DI05
GND
No use
13
DIO6
GND No use
14
AIOl GND
Suction temp.(input)
15
AI02 GND Water in temp.(input)
16
AI03
GND
Water outtemp.(input)
17
AIO4 GND
Temp.
Of coil
(input)
18
AIO5 GND
Ambient
temp.(input)
10
A106 GND
Adjustable
fan
speed/Exhausttemperature
cN1
Primarv
transformer
21
CN2
Secondary
transformer
22
cN6
Without
use
l3
CN1 9
Electronic
expansion
valve
24
5VCN16GNt
Flow
meter
15
16
5. MAINTENANCE
AND INSPECTION
66Check
the
watersupply device andthe
release often.Youshould
avoid thecondition of
no
water or airentering
into system,as this
willinfluence unit's
performanceand
reliability.
Youshould clear
thepool/spa filter regularly
to
avoid
damageto the unitas
a resultof the
dirty of clogged
filter.
&The
area aroundthe
unit shouldbe dry, clean andwell
ventilated, Cleanthe
side heating
exchanger regularly tomaintain
good
heatexchange as conserveenergy
.
&The
operation
pressureof
the refrigerantsysiem
should onlybe
serviced bya certified
technician.
6pCheck
the
powersupply
and cableconnection often,.Should theunit
begin tooperate
abnormally, switch lt of and contactthe
qualified
technician.
6Discharge
all waterin the waterpump and
watersystem
,so
that
freezing of thewater in the
pump
or watersystem
does notoccur. Youshould
discharge thewaier at thebottom of
water
pump
ifthe unit willnot
be usedfor an extendedperiod
of time.Youshould
check the
unitthoroughly andfill thesystemwithwaterfullybeforeusingitforthefirsttimeaftera
prolonged period
ofno
usage.
@Checks
to thearea
Prior
to
beginningwork on systemscontaining
flammable refrigerants, safety checks are
necessary
to
ensurethat the riskof ignition
isminimised. For repairto the
refrigerating
system, the followingprecautions
shall becomplied with
priorto
conducting workon
the
system.
&Work procedure
Work
shallbe undertaken
undera controlled
procedureso
as tominimise the
riskof a
flammable
gas
orvapour being
presentwhile
the workis being
performed.
@
General work area
All maintenance staff and othersworking
in thelocal area shallbe
instructed onthe nature
of work beingcarried out. Work
in
confinedspaces
shall beavoided.
Thearea around the
workspace shall besectioned off. Ensure that theconditions
within thearea
have been
made safe bycontrol of
flammablematerial.
@Checking for
presenceof
refrigerant
The
area
shallbe checked withan appropriate
refrigerantdetector
prior
toand during
work,
to ensure thetechnician
is aware of
potentially
flammable
atmospheres. Ensure thatthe
leak
detection equipmentbeing
used issuitable for usewith
flammable refrigerants, i.e.
non-sparking, adequately sealed or intrinsically safe.
6
Presence of fire extinguisher
lf any hotwork is tobe conducted onthe refrigeratlon
equipmentor any associatedparts,
appropriate fire extinguishingequipment shall
beavailable to hand. Have a drypowder
or
C02 fire extinguisheradjacent to thecharging
area.
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