Airwell PAC BT Series User manual

Installation and operating manual
PAC BT
5 kW to 17 kW
M0GC6UN16-02 Nov.2016
English version

2
Dear Customer,
Congratulations on your purchase of the PAC BT, the air conditioning sy-
stem at annual cycle that offers the possibility in a sole system of meeting
all the heating, conditioning and domestic hot water needs.
Airwell is being working for years to offer systems able to assure the maxi-
mum comfort for long time with high reliability, efficiency , quality and safe-
ty. The target of the company is to offer advanced systems, that assure the
best comfort, reduce the energy consumption, the installation and mainte-
nance costs for all the life-cycle of the system.
With this manual, we want to give you information that are useful in all the
phases: from the reception, to the installation and use until the disposal so
that a system so advanced offers the best procedure of installation and use.
Best regards and have a nice reading !
AIRWELL RESIDENTIAL

3
Before any operation carefully read the GENERAL WARNINGS at the end of the manual
1
2
3
INDEX
Installation quick guide 4
Reception 7
Installation 11
Water connections 15
Refrigerating connections 19
Electrical connections 22
Start - up 28
Control 34
Maintenace 67
Accessories 73
Technical data 74
General warnings 81
Residual risks / Disposal 83
Energy data sheets and labelling 85
4
5
6
7
8
9
10
11
12
13

DHW
pump
No recircu-
lation pump
Power supply 230 or 430
Separate power supply and signal
!
Thermostat
Elfocontrol2 (option)
Segnals
Size 5kW 7kW 9kW 12kW 14kW 17kW
Liquid Ø Outdoor 3/8” 3/8” 3/8” 3/8” 1/2” 1/2”
Gas Ø Outdoor 3/8” 1/2” 1/2” 5/8” 5/8” 3/4”
Size 5kW 7kW 9kW 12kW 14kW 17kW
Min. content / Liters 17 20 25 33 40 50
System
pump
Anti-vibration joints Cut-off valves
Vent
KPa = Useful pump discharge head
* Storage tank: this is present when the radiator circuit is excluded and there is not enough water
in the towel warmer circuit
*
Respect the functional clearances for maintenance
Size L2 W1
5 kW - 9 kW 200 250
12 kW -
14kW 250 300
17kW 300 350
Check that the pump head is adequate to the type of system
On the RS485
board is possible
to connect only
one con-
trol,RCW15
keypad
!
Avoid installations next to bedrooms
Install in a local or compartment where the
temperature can't drop below 0 ° C.
For details see the manual sections
Indoor unit
Place so that it doesn't disturb
Outdoor unit
Water minimum content always circulating
L
Pump head/pressure drops of the system
M
Functional clearances/access
B
Refrigerant piping: distance maximum height differences
G
Water connections
N
Electrical connections
F
Consider sound emissions
A

Rapid guide
PAC BT
BEFORE REQUESTING START-UP
 Completed system
 Refrigeration circuit emptying and charging
 Water circuit loading and venting
 Electrical connections
!
Reference document
M0GC6UN16
Provide a protection
< 15 °f. ?
If necessary, install water softener
To avoid the water freezing downstream of the
drain, lay the tube below the frost line (A). Provide windbreaks or similar
1 Domestic Hot Water output
2 Water input
3 System water return
4 System water outlet
5 Pipe line( liquid )
6 Pipe line ( gas)
8 Solar system input (option)
9 Solar system output (option)
10 Domestic Hot Water recirculation
Litres ? °C ?
Tmax 95 °C
Charge OK ?
Carefully wash the system
Sizing expansion tanks according to the sy-
stem features
Condensate discharge
DStrong winds
E
Snowdrifts
C
Water features
HDomestic Hot Water Requirements
I
Indoor unit drains
OExpansion tanks
P
System cleaning
Q
The requirements vary by the number of people living in the building
Estimated average daily per capita consumption of hot water
Requirements Liters - day - people (bathroom) Liters - day - people (kitchen)
Low Min.15 > max. 30 Min. 10 > max. 20
Medium Min.30 > max. 60 Min. 20 > max. 40
High Min.60 > max. 120 Min. 40 > max. 80
Example: average requirement for 4 people need about 230 litres/day
* Possibility of adding auxiliary cylinder in case of high hot water request
ASystem valve
I.A. Aqueduct input
C.C. Components provided by Customer
DEF Dirt separator
F Water filter
M Pressure gauge
P. A. Descaler protection
PS Solar pump
RID Pressure reducing valve
VEACS Domestic hot water expansion tank
VEI System expansion tank
VES Solar expansion tank
VR Check valve
VT Mixing valve thermostatic
MTGC40E16-01 26-05-16

6
GENERAL
Serie
Size
Serial number
Year of manufacture
Wiring diagram
UNIT INDENTIFICATION
Operate in compliance with safety regulations in force .
Use single protection devices.
PRELIMINARY INFORMATION
Before beginning the work, ensure you that have the final
project for installing the system and positioning the units.
Recommended instruments
Set of Philips and flathead screwdrivers;
Cutters;
Drill;
Scissors;
Set of open spanners or pipe wrenches;
Range;
Hydraulic material for the sealing of the threads;
Electrical equipment for the connections;
Cut prevention gloves;
Tester and amperometric pliers.
Serial number label
The serial number label is positioned on the unit and allows to
indentify all the unit features.
It has not to be removed for any reason.
It reports the regulations indications such as:
 Machine type, exmple:
Series —> PAC BT
Size —> 5kW,7kW,…..17kW
 Serial number
12 characters  Axxxxxxxxxxx
 Year of manufacture
 Wiring diagram number
 Electrical data
 Supplier logo and address .
Serial number
It identifies uniquely each machine.
It identifies specific spare parts for the machine.
Assistance request
Note data from the serial number label and write them in the
chart on side, so you will find them easily when needed.
In case of intervention you have to provide data.

7
1 - ENERGY DATA SHEETS AND LABELLING
1.1 - DELIVERY CONTROL
1.2 - STORAGE
1.3 - HANDLING
?
A
A
Before handling verify that the unit keeps its balance.
BIndoor unit
CFork input side the
DBelt input side for lifting by crane
EMaximum inclination
Aidentification label
A
Indoor unit Outdoor unit
Before accepting the delivery you have to check:
 that the unit hasn’t been damaged during transport.
 Check that the materials delivered correspond with that
indicated on the transport document comparing the data
with the identification label ‘A’ positioned on the packaging.
In case of damage or anomaly:
 Write down on the transport document the damage you
found and quote this sentence: "Conditional acceptance
clear evidence of deficiencies/damages during transport".
 Contact supplier and the carrier by fax and registered mail
with advice of receipt.
Any disputes must be made within the 8 days following the
delivery. Complaints after this period are invalid.
Shelter from: direct sunlight, rain, sand and wind.
Stocking temperature:
maximum 50°C
minimum -10°C
The respect of the instructions on the exterior side of the
packaging assures the physical and functional integrity of the
unit for the final user’s advantage.
Verify unit weight and handling equipment lifting capacity .
The following examples are indications the choice of the
means and of the handling modes will depend on factors.
Use protection (A) to avoid the unit damaging
Identify critical points during handling (disconnected routes,
flights, steps, doors).
Stair climbing trolley.

8
1 - RECEPTION
1.4 - REMOVE WOODEN PLATFORMS
FOutdoor unit
GFork input side the
HInput side for lifting by crane
GH
F
Be careful not to damage the unit.
Keep packing material out of children's reach it may be
dangerous.
Recycle and dispose of packing material in conformity with
local regulations.
1.5 - PACKING REMOVING
Remove the screws
Remove planks and mural
Remove the screws by brackets
Remove the screws