Cool Energy EcoStore Series, EcoStore CE-ES200, EcoStore CE-ES300 User Manual
Cool Energy EcoStore Heat Pump Water Heater
0 | P a g e
EcoStore - Air Source Heat Pump Water Heater
EcoStore
Cool Energy EcoStore Heat Pump Water Heater
1 | P a g e
INTRODUCTION
Thank you for purchasing this equipment which will give many years trouble free use with the correct installation
and care. In the unusual occurrence that problems occur with the installation or continued use please contact the
installer in the first instance to provide all the backup required to ensure these products meet the high standard
met by our products.
These
instru
ctions
are addressed
to both the
installer and
the final
user,
who
respectively
must install
and
use
the heat pump water
heater. Failure
to meet the
provisions
contained in this manual will
result
in the
cancellation
of the
warranty.
These
instructions include
essential
and important information for
safe
and proper installation, and
are an
integral part of the
product.
As a consequence,
all
technical documents
must
be
kept with care
and must always accompany
the product.
All
the
data and instructions contained
in
this manual refer
to the
current technological
level.
Please always refer
to the
instructions contained
in
this manual when installi
ng the equipment.
The operations described
in
these instructions
require
specialized knowledge, achievable
through a
comprehensive and proven professional training in system installation.
As a consequence,
we
recommend that you only perform the installation operations described
herein if you meet th
e
technical requirements listed
above.
The instructions are provided in schematic form; due to possible writing/printing
errors, and to
possible technical changes,
we decline all responsibility
as
to the
correctness
of the contents.
The diagrams used are
purely
INDICATIVE,
have
no
pretense
of
completeness
and
are
not intended
to
replace
the design.
Cool Energy EcoStore Heat Pump Water Heater
2 | P a g e
INDEX
1
GENERAL
NOTICE
..............................................................................................................................04
1.1
F
IELD OF US
E
.................................................................................................................................................................................04
1.2
PRODUCT NAME………………………..
..............................................................................................................................................04
1.3
SAFETY INFORMATION……………………….
.......................................................................................................................................04
1.4
C
ERTIFICATIONS
AND
MARKINGS
...............................................................................................................................................05
1.5
M
EANING OF
THE SYMBOLS USED HEREIN
................................................................................................................................05
1.6
D
ELIVERY AND PACK
AGING
.........................................................................................................................................................05
1.7
T
RANSPORT ……
.........................................................................................................................................................................05
1.8
M
EASUR
ING
.................................................................................................................................................................................06
1.9
T
EMPERATURE UNIT SHIFT
...................................................................................................................................................... .....06
2
TECHNICAL AND DIMENSIONAL
SPECIFICAT
IONS......................................................................
06
2.1
O
PERAT
ING PRINCIPL
E
.......................................................................................................................................................... .....06
2.2
E
NERGY EFFICIENCY
.................................................................................................................................................................07
2.3
H
OT WATER TEMPERATURE
.....................................................................................................................................................07
2.4
M
AIN COMPONENTS
...............................................................................................................................................................08
2.4.1
T
ANK
.........................................................................................................................................................................................08
2.4.2
HEAT PUMP UNIT
.......................................................................................................................................................................08
2.4.3
A
NTI-CORROSION PROTECTION
...............................................................................................................................................08
2.4.4
T
HERMAL INSULATION
AND COAT
ING
.....................................................................................................................................09
2.5
D
IMEN
SIONAL CHARACTERISTIC
S
............................................................................................................................................10
T
ECHNICAL
DATA TA
BLE
..........................................................................................................................................................10
3
INSTALLATION AND FIRST START-UP ..........................................................................................
11
3.1
H
YDRAULIC CONNECTION
......................................................................................................................................................11
3.1.1
H
YDRAULIC
SAFETY UNIT
.......................................................................................................................................................12
3.1.2
P
RESS
URE REDUCER
................................................................................................................................................................12
3.1.3
E
XPANSION TANK
...................................................................................................................................................................12
3.2
U
NIT FILLING
.........................................................................................................................................................................12
3.3
D
UCT
.......................................................................................................................................................................................12
3.4
E
LECTRICAL CONNECTION
......................................................................................................................................................14
4
USAGE IN
STRUCTIONS
...................................................................................................................
14
4.1
S
WITCH-ON
..................................................................................................................................................................................14
4.2
E
LECTRONIC CON
TROL
................................................................................................................................................................14
4.2.1
D
ISPLAY
...................................................................................................................................................................................14
4.3
O
PPERATING IN
STRUCTIO
N
........................................................................................................................................................16
4.3.1
O
PERATIONS BEFORE
TURNING ON
THE PRODUC
T
................................................................................................................
16
4.3.2
M
ODE
.......................................................................................................................................................................................16
4.3.3
H
EAT SOURCE
SHIFT
................................................................................................................................................................16
4.4
B
ASIC
FUNCTION
.......................................................................................................................................................................17
Cool Energy EcoStore Heat Pump Water Heater
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4.4.1
W
EEKLY DISINFECT
FUNCTIO
N
................................................................................................................................................17
4.4.2
V
ACATION MOD
E
:....................................................................................................................................................................17
4.4.3
P
OWER ON AND POWER OFF
.................................................................................................................................................17
4.4.4
L
OCK AND UNLOCK
.................................................................................................................................................................17
4.4.5
Q
UERY FUNCTION
...................................................................................................................................................................18
4.5
S
E
TTING
.....................................................................................................................................................................................19
4.5.1
T
EMPER ATURE SETTIN
G
...........................................................................................................................................................19
4.5.2
C
LOCK SETTIN
G
........................................................................................................................................................................19
4.5.3
T
IMER
SETTING
.........................................................................................................................................................................19
4.5.4
C
ANCEL
....................................................................................................................................................................................20
4.5.5
D
ISINFECT MODE
.....................................................................................................................................................................21
4.5.6
V
ACATION MOD
E
.....................................................................................................................................................................22
4.6
C
OMBINATION BUTTON
..............................................................................................................................................................23
4.7
A
UT
O-RE
START
............................................................................................................................................................................23
4.8
S
CREEM AUTO LOCK
....................................................................................................................................................................24
4.9
E
RROR
...........................................................................................................................................................................................24
4.9.1
E
RROR CO
DE TROUBLE SHOOTING TABLE
.............................................................................................................................24
4.10
FAQ .............................................................................................................................................................................................26
4.11
H
YDRAULIC
SAFETY UNIT EFFICIENCY CHE
CK
.............................................................................................................................27
4.12
U
NIT
EMPTYING
...........................................................................................................................................................................27
4.13
R
ESTART AFTER A
LONG-TERM STOP
...........................................................................................................................................27
5
MAINTENANCE INSTRUCTIONS
....................................................................................................
27
5.1
G
ENERAL
......................................................................................................................................................................................27
5.2
F
ALSE ERRORS OF OPERP
ATION
..................................................................................................................................................28
5.3
V
ISUALIZED
TEMPER
ATURE
.........................................................................................................................................................28
5.4
HEAT PUMP UNIT MAINTENANCE
.................................................................................................................................................28
5.5
C
LEANING THE
ASPIRATION
AIR FILTER
......................................................................................................................................28
5.6
W
ATER
CIRCUIT
/
C
ONDENSATE DISCHARGE
............................................................................................................................29
5.7
A
IR CIRCUIT SUPP
LY
.....................................................................................................................................................................29
5.8
D
ESCALING AND LIME SCALE DEPOSIT REMOVAL
......................................................................................................................29
5.9
A
NODE
VERIFICATION
..................................................................................................................................................................30
5.10
R
EPLACE
AND/OR CONTROL THE
ELECTRICAL
RESISTANCE
.......................................................................................................31
5.11
O
UTSIDE CLEANI
NG
.....................................................................................................................................................................32
5.12
G
ENERAL NOTES
..........................................................................................................................................................................32
5.13
A
FT
ER-SALE
SERVICE
....................................................................................................................................................................32
6
MEASURES TO BE
ADOPTED IN CASE OF
MALFUN
CTIONS .....................................................32
7
INSTALLATION EXAMPLES…
..................................................................................................
34
8 COMMISSIONING SHEET AND SERVICE RECORD
..........................................................
35
Cool Energy EcoStore Heat Pump Water Heater
4 | P a g e
1
GENERAL
NOTICE
1.1
Field of
use
The heat
pump water
heater
for the production of hot
water is
only intended to be
used
for sanitary
water
heating,
without
exceeding
the
usage
restrictions
specified herein.
To
this
purpose
it must
be
hydraulically connected
to
a sanitary water delivery network. It
requires a
power su
pply to operate.
Never use
the heat pump for
any purposes
other than
those specified herein.
Any other
use is
to be
deemed
as
inappropriate and
forbidden.
The
manufacturer cannot be
held
responsible
for
any installation errors and inappr opriate
equi
pment
use.
1.2
Product
nameplate – EcoStore CE-ES200 / CE-ES300
1.3
Safety Precautions
The purchaser shall take care
of the
installation. The Manufacturer shall
not be
liable
for
any damage
s
caused
by wrong installation and/or
noncompliance
with the instructions contained in this
use
and
maintenance booklet, and
in
particular
with
those prescribing
that:
• the
electrical connection must comply
with the
provisions specified
in the
relevant
para
graph;
• Uthe
supplied
nylon
electrical protectorsU must be properly installed;
• “Uthe
hydraulic safety
unit”U
must be
properly installed, intact
and
in good working order;
• installation and
maintenance
must be performed by qualified
personnel,
in
compliance with
the
regulations
in force;
• before st
arting any
maintenance
or repair
operations
on components containing any cooling
fluid, a qualified technician must remove
an
appropriate
amount of the
latter,
to
ensure
the risk-
free execution
of the
operations
in qu
estion.
The refrigerant
must be handled and
disposed
of
in
compliance with the relevant
regulations and
must not be
dispersed
into the environment!
(The R134a
refrigerant
is CFC-free,
not
flammable and
not harmful for the
ozone
layer);
• the
maintenance
regu
lations must be obse
rved;
• the equipment
must be installed
in
an appropriate
room (to
avoid
being
exposed
to frost)
• the
maximum overpressure, when using
the
tank, must be
respected;
• the
maximum
temper
ature, when usin
g the ta nk, must be respected
.
CAUTION! UFAILURE
TO
COMPLY
WITH
THE ABOVE PROVISIONS WILL RESULT
IN THEU
U
CANCELLATION OF ANY WARRANTY RIGHT.
This
equipment
complies
with the
provisions contained
in the
EEC
Directives
in force.
Cool Energy EcoStore Heat Pump Water Heater
5 | P a g e
1.4
Certifications and
Markings
The
verification
has
been performed
with
reference
to the following
technical standards:
UNI EN
16147;
EN
12102;
EN
60335-1;
EN
60335-2-21;
EN
60335-2-40;
EN
55014-1;
EN
55014-2;
EN
61000-3-2;
EN
61000-3-3;
EN
50366.
1.5
Meaning of the symbols used
herein
Symbol
Meaning
Failure to comply with the provision in question may result in injuries and/o
r
damages
to people,
objects, plants or animals.
1.6
Delivery and
pack
aging
The
heat pump water heater
is supplied
in an environment-friendly and
easy
to handle cardboard
packaging
with protective
inserts. Make sure
that the
packaging
material is
disposed
of properly
in
compliance
with the
environment-related regulations
in force.
S
hould the heat pump for
sanitary
water show any clear
damages, absolutely
avoid mounting or
installing it.
Immediately
inform the supplier.
1.7
Transport
When
storing and transporting it,
always
keep the heat pump water heater vertical
(straight)
in its
original packaging.
For
short
stretches
it
can
be
inclined
by
45°,
provided utmost
care is taken
when
transporting it.
Due
to the forward
inclination,
when usin
g forklift
trucks
or other
means
of
transport proceed sl
owly and fasten the equipment to prevent it from
tipping.
After
transporting the equipment in
inclined
position,
before starting
it you
need to wait for about 3
hours,
to
ensure
the appropriate settling of the
lubricating oil in the cooling circuit
and avoid
damages.
Position the heat pump,
after removing the packaging and the bracket
supplied
for
transp
ortation.
For short moves use
the
special handles situated
on the
side
part of the pr
oduct.
Cool Energy EcoStore Heat Pump Water Heater
6 | P a g e
1.8 Measuring
The measuring units used in this manual for the relevant physical magnitudes are those of the
International
System(SI).
1.9
Temperature unit
shift
Press
ENTER
for
3 seconds
to
unlock
the buttons.
P
ressing
the
E-HEATER
key for 10
seconds
they can shift the temperature from
display unit
from
‘°F’
to
‘°C’ or
from
‘°C’
to ‘°F’
The
default
is ‘°C’.
When
it
is sh
ifted
to
display
‘°F’ , it still will
display
‘°C’
while it operates spot check.
2
TECHNICAL AND DIMENSIONAL
SPECIF
ICATIONS
2.1
Operating
principle
The air-water
heat pump
uses
the
energy
of the air existing in the environment.
The
air required fo
r
the proper operation of the
heat
pump
can be
drawn from the
outside through a window
(mini
mum
temperature
-20°C)
or from the surroun
ding environment
or from other
environments
through ducts.
The
air drawn from the environment
is sucked
through a fan and the heat
existing
in air
is
absorbed
during the
passage
in
a heat exchanger (evaporator).
In the
evaporator
the
heat taken
from the
air
is
caused
to evaporate at low
pressure
by the refrigerant (the working fluid in the refrigerant circuit,
is as in a household fridge).
The vaporized
coolant is
sucked
by a
compressor
and raised to a
higher level of pressure (as
in
a bicycle
pump)
and temperature.
In
a second heat exchanger
(condenser)
the higher
temperature
heat
is absorbed
and
transferred
to the
water;
this
way
the
Cool Energy EcoStore Heat Pump Water Heater
7 | P a g e
vaporized
refrigerant fluid
switches back
to the liquid
state as a
consequence
of thermal
dissipation.
The
liquid
refrigerant, fl
owi
ng through a choking component
(expansion valve), undergoes
a low
pressure expansion and, after
returning to the
evaporator,
it
can again draw heat
from the
surrounding
environment.
The
hot
water heat
pump
operates at ambient temperatures ranging between
-20°C and +43°C.
The hot water heat pump is a
connection-ready
equipment whose function
is
heating drinkable
water;
it
basically consists
of the water tank and of the
refrigerant,
air and water circuit
components,
as well
as
of
all
the co
ntrol,
adjustment
and
monitoring
devices required
for
automatic
operation.
> Use of the environment energy
Refrigerators, washing machines,
heating
systems and
other equipment/electric
appliances
generate
heat that in most
cases
is not reused. Instead
of being
dispersed
into the environment, generating
pollution, the hot air in question can suitably be
used
to heat sanitary water: a
sensible
and
environment-friendly
solution.
An
important benefit
is
the
air
dehumidification
resulting
from
heat suction, decreasing
the
degree
of
humidity in
cellars and
laundries.
This has
two
beneficial effects: environment
prote ction
and
production of
cheap
hot
sanitary
water.
2.2
Energy efficiency
> Free energy
The necessary energy
for the heating of
sanitary
water
comes
for 2/3 from the air and 1/3 from the
electric
power supply.
> Coo
ling through
the heat pump for
hot
sanitary
water
After heat subtract
ion,
the lower-temperature output air can be
used
during
summer
to cool th
e
environment where
the
heat
pump
is
installed.
This provides a
double
benefit,
while
ensuring
optimum
energy
efficiency.
> multi
use of
energy
The heat pump can be beneficially installed in stores, workshops, commercial, residential
applications etc. to get hot
sanitary water and,
if needed, cooled air.
2.3
Hot water
temperature
Setting water temperature
target
range:
38÷
65°C.
Cool Energy EcoStore Heat Pump Water Heater
8 | P a g e
Using renewable energies and ensuring
optimum
energy efficiency,
the
heat
pump
provides an
environment-friendly
and efficient
solution to
heat water throughout the
year.
2.4
Main
components
2.4.1 Tank
The tank consists
of a water-tight Stainless Steel AISI316L
cylindrical inner vessel.
2.4.2
Heat pu
mp unit
The
refrigerant
circuit
is
located
in the upper
section
of the
water heater and co
nsist of:
•
Refrigerant
fluid R134a;
•
Rotary
compressor;
•
Thermostatic expansion
valve;
•
Solenoid valve
for the
de-frosting
cycle;
•
Combined filter, drier and collector
of the
refrigerating
circuit;
•
High-powe r blade
evaporator;
•
Electronic axial
fan;
•
Average-sized Cu cooling
pipes;
•
Thermal exchanger co oper
pipe wounded
around
the inner vessel ( in
this
way a
contact between
the
refrigerant gas
and
the
drinkable water
is
impossible);
•
Condensation drain plastic pipe.
2.4.3
Anti-corrosion
protection
The
protection
against corrosion
is
performed by
an
integrated
electronic
anode.
Data:
Electronic
• Feeding
90 - 253Vac 50 - 60Hz
•
Maximal
absorpti on 3
•
Maximal
output voltage 20Vdc
•
Maximal
output current 15mAdc
• Working temperature
-10 – 85°C.
•
Protection
level IP44
• Size 85x55x26mm
Electrode
•
Protection
electrode
activated
titanium diam. 3mm
• Fastening 1/2”
•
Screwi
ng up max.
25
Nm
•
Working
temperature
-10 – 100°C.
Co
nnection
•
Power
cable double
insulation cable tmax 105°C.
•
Protection
cable flat
cable 2x0,50mm red/black (red cable:
electrode)
•
Electrode
connection
bush
diam. 3mm
• T
ank
connection
eyelet
diam.
5mm.
Cool Energy EcoStore Heat Pump Water Heater
9 | P a g e
Positioning
All fastening, connection and
maintenance operations must be
performed when the device
is not
powered.
Be sure
that the
device has a
proper
position, far
away
from water, direct
heat sources,
etc.
Do not open the container of th
e
device,
inside there are no sp
are
parts.
Do not invert the connections
electrode-tank.
2.4.4
Thermal insulation and
coating
Thermal insulation
is ensured
by a highly
biological, CFC-free
rigid
polyurethane
foam
(PUR)
coating.
The
full
compressed foam coating allows
to
minimize energy
losses.
The external coating
is made
of a soft PVC material.
2.5
Dimensional char
acteristics
The technical and
dimensional characteristics
of the equipment
are
indicated
in
Fig.
1.
The electrical characteristic data
of
each
model
can be
found on the equipment itself.
Heating exchanger su
rface:
Model
Unit 0 H
EcoStore 200
mm
650
1586
EcoStore 300
2107
Model
Unit
Lower
heating
exchange
r
EcoStore 200
m
2
0.6
EcoStore 200
1.3
Cool Energy EcoStore Heat Pump Water Heater
10 | P a g e
Technical data
table
Model
EcoStore 200
EcoStore 300
Type
Air Source Heat Pump
Use
Water Heater
Temp.
Ԩ
Standard 55°C ( 38°C bis ~ 65°C)
Storage
material
(DIN
4753)
AISI 316 / EN
1.4404
Storage size L
200
300
Insulation
thickness
mm
B2 / DIN
4102
50
Power su
pply
Ph-V
-Hz 1 –
230 – 50
Ambient temperature
Ԩ
-20°C
min /
max.
+43°C
Noise
level
dB(A)
53
Refrigerant type / quantity
kg
R134a/1.02
R134a/1.2
Refrigerant design pressure
MPa
3.0/1.2
Tank design
pressure
MPa
0.6
Control
Electronic
Program
Economy
E
-Heater
Vacancy
Disinfect
Protection
TCO1, TCO2,
de-frosting automatic
Air
flow m3/h
414
Compress
or
Input
kW
0.62
COP
A15/W1
5-60
2,76 3,1
COP A 15/W
15-45
3,86
4,34
ErP Test
Profile
L
XL
Erp Energy Class
Class
A+
Fan
Input
W
68
r/
min
620/530/465
Water pipe
Rp
1"
Rp
1"
Condenser Diameter
Copper 0 8x0,5
E-heater
No.
1
Material
Nicolay
800
kW
0.9
Tank protection
Electronic Anode
(DIN
4753)
Electrical protection IP21
Cool Energy EcoStore Heat Pump Water Heater
11 | P a g e
3
INSTALLATION AND
FIRST
START-UP
(qualified personnel
only)
CAUTION!
•
The installation
room must be 20 m3 or larger and have
suitable
air e
xchange and not be subject
to sub zero conditions.
• The equipment must be installed in
compliance
with the national installation
regulations.
•
Operations involving
the hot water heat pump
must
only be
performed
by competent /
qualified personnel!
•
Observe the safety regula
tions.
• The
installation environment,
electrical
and
hydraulic systems of
the equipment m
ust comply
with local regulations in
force.
•
You need
to
install
the
equipment
at the
prescribed distance
from the
room walls
and
ceiling, to ensure easy
maintenance.
•
The surface on
which the equipment is to be
installed must be able to
bear
its weight.
•
The equipment ventilation
openings
must not be obstructed.
•
The chosen environment must
be
suitable
for the
equipment IP degree,
in
accordan
ce
with the
regulations in
force;
•
The ambient temperature
(or the
temperature
of the input air)
must range between
-
20°C and +43°C.
• If
possible, install the equipment in a room allowing to exploit the
excess
heat
generated
by
tumble-driers, refrigerators, freezers,
etc.
• Air
must be neither
excessively purified nor too
contaminated with
dust.
•
There must be a
suitable drain connection to discharge cond
ensa
tion from the unit.
CAUTION! UThe equipment is
not
intended
to be
used
by any
persons ( including
children
)U
U
having reduced sensory
or mental faculties, or lacking experience or knowledge,
unless
theyU
U
are under the supervision
of a
person in charge
of
their safety, or they have received
properU
U
instructions regarding equipment
usage.
Children must
be watched to ensure
that
they don't play with the
equipment.
3.1
Hydraulic connection
Installations must conform to local
regu
lations in force. We recommend the integration of a
magnetic filter for the cold feed water supply. The link
pipes
(hot water,
recycle,
in-out
exchanger)
must
be perfectly isolated according
to the
energy norms
in
order
to avoid
heating
dispers
ions.
We recommend
that you install the equipment
close
to the
main
hot
water
drawing point, to prevent
heat
dispersions
along
pipes,
and if possible, near a drain, for
easier
emptying and condensate
discharge
Cool Energy EcoStore Heat Pump Water Heater
12 | P a g e
3.1.1
Hydraulic safety
unit
(manda
tory)
You
must install a
hydrauli c safety
unit (Supplied in G3 Kit)
complying with
EN 1487
or with
equivalent local standards
in
force;
•
Check
valve;
•
Check valve
control de
vice;
•
Safety valve;
•
Hydraulic load
interrupting
device.
The above components are required to
safely
run the supplied equipment. The rated calibration
pressure
of the hydraulic
safety
unit must be of
0.6 MPa
(6
bar). Pay
attention while installing the
hydraulic safety
unit,
avoiding forcing or altering it. Water may drip from the hydraulic safety un
it
discharge connector (see paragraphs
“USAGE INSTRUCTIONS
(user) - Water dripping from th
e
hydraulic
safety unit”).
This
opening must
be left
exposed
to the atmosp
here.
You
need to install a
discharge
pipe, with a constant downward
slope, in a
condensate-
and
ice-free area. There
must be
no
obstructions
in the
pipe,
to
avoid overpressures.
3.1.2
Pressure
reducer
Should the network
pressure exceed 0.6 MPa
(6
bar),
you need to install an appropriate pressure
reducer upstream
of the
hydraulic safety unit,
ensuring
the
indicated operating
range.
3.1.3
Expansion
tank
To prevent any
overpressures
that might
damage
the equipment, frequently triggering the safety
unit and causing water
dripping,
Uit is mandatoryU that you install an adequate
expansion
vess
el.
Install it in
accordance
with the instructions provided by the manufacturer. The expansion
tank is
required
to
keep pressure
constant and avoid harmful
pressure shocks
or
accidental overpressures.
3.2
Unit
filling
WARNING: USwitching on the equipment when
it
is
not filled with water will seriously
damageU
U
the refrigerating units and the electrical
heating element.
WARNING:
UIn the
presence
of water with a
hardness degree >20°TH (where 1°TH=Frenc
hU
U
degree=10mg CaCo3/l)
it
is
mandatory that you install a
softener
to
reduce
limestoneU
U
scaling inside
the
boiler
and
keep
the
electrical resistance
and the
hydraulic safety
unit inU
U
good
working
order.
To
fill the equipment,
you need to:
•
open
the
main water supply
or the equipment
water supply valve;
• open a hot
water
tap
(e.g. ba
throom,
wash basin, etc.)
to allow the water to flow out; when the
water
outflow from the tap
is
constant
the equipment will
be full;
Cool Energy EcoStore Heat Pump Water Heater
13 | P a g e
•
check
that
there are
no
leaks
from the
various hydraulic
connections;
UNote******
We
recommend
that
you flush
the pipes before connecting the unit
Only proceed
with the
electrical connection after
performing
this
operation
3.3 Duct
DUCT
ROUND
DUCT
RECTANGLE
DUCT
Dimension (mm)
190
190x190
Straight-li ne pressure
drop (Pa/m)
≤2
≤2
Straight-line
length (m)
≤5
≤5
Bent pressure
drop (Pa/m)
≤2
≤2
Bent’s
qty.
≤5
≤5
•
Too much resistance of duct will
decrease air-flow-rate,
which will lead to capacity of
unit decreased.
•
T
otal duct length ideally
should be
no
more
than 5m and 3 x 90 degree bends or the
maximum static pressure should be
within
25Pa.
•
For
unit air outlet with duct, when unit operating,
condensate
will be generated around
outside
of duct.
please pay
attention to the
drainage
work, we
suggest
to wrap the thermal
insulated layer around outside
of the duct.
• It
is recommended
to install the unit in the indoor
space,
it
is
not allowed to install the unit
at the
rainy space.
WARNING: UIn case of rain entering
to
internal components of the unit, the component
mightU
U
be damaged
or
causing physical da nger.
In
terms
of
the unit connect with duct reaching
toU
U
outdoor, a reliable water-resistant measure must be conduct on the duct,
to
prevent
waterU
U
from dropping into in
ternal of the unit.
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