Strebel S-ASX Series User manual

STREBEL
S-ASX Air Source
Heat Pump
Models 60 –70 –80 –90 –100
Installation, Operating & Maintenance Manual
Please read and understand before commencing installation and leave the manual with the customer for future reference.
2021-06-01 v1

2

3
TABLE OF CONTENTS
1INTRODUCTION ......................................................................................................................................... 6
1.1 SAFETY GUIDELINES ........................................................................................................................6
1.2 DECLARATION OF CONFORMITY ........................................................................................................7
1.3 DATA PLATE ....................................................................................................................................7
2GENERAL INFORMATION.........................................................................................................................8
2.1 UNIT DESCRIPTION...........................................................................................................................8
2.2 DESCRIPTION OF COMPONENTS........................................................................................................8
3TECHNICAL SPECIFICATIONS...............................................................................................................10
3.1 PERFORMANCE DATA.....................................................................................................................11
3.1.1 Flow Temperature of 35c ..................................................................................................11
3.1.2 Flow Temperature of 45c ..................................................................................................12
3.1.3 Flow Temperature of 55c ..................................................................................................13
3.1.4 Flow Temperature of 65c ..................................................................................................14
3.2 ERPSPECIFICATION DATASHEET....................................................................................................15
4DIMENSIONS & CLEARANCES ..............................................................................................................16
4.1 DIMENSIONS..................................................................................................................................16
4.2 REQUIRED CLEARANCES................................................................................................................16
5STANDARD SUPPLY, ADDITIONAL OPTIONS & ACCESSORIES.......................................................17
5.1 STANDARD SUPPLY........................................................................................................................17
5.2 ADDITIONAL OPTIONS.....................................................................................................................18
5.2.1 System Side Interal Pump Setup Example –Modulating or High Head...........................18
5.2.2 Internal 3 Way Valve Example –DHW Production...........................................................18
5.3 ACCESSORIES................................................................................................................................18
6WEIGHTS ..................................................................................................................................................19
6.1 S-ASX 60 –100: STANDARD SUPPLY.............................................................................................19
6.1.1 Transport Weight...............................................................................................................19
6.1.2 Installed –Dry Weight .......................................................................................................19
6.1.3 Installed –Filled Weight ....................................................................................................19
6.2 S-ASX 60 –100: DHW 3WAY VALVE............................................................................................19
7NOISE LEVELS.........................................................................................................................................19
8PRESSURE DROP....................................................................................................................................20
8.1 PRESSURE DROP THROUGH HEAT PUMP PLATE HEAT EXCHANGER.................................................20
8.2 PRESSURE DROP THROUGH DHW 3PORT VALVE...........................................................................20
9SYSTEM PUMP SELECTION & OPERATING LIMITS............................................................................21
9.1 SYSTEM PUMP SELECTION.............................................................................................................21
9.1.1 Modulating Pump –Standard Supply................................................................................21
9.1.2 High Head Pump –Additional Option ...............................................................................21
9.2 OPERATING LIMITS –DELTA T........................................................................................................22
10 CORRECTIVE FACTORS.........................................................................................................................23
10.1 HEATING PERFORMANCES..............................................................................................................23
11 TAKING DELIVERY OF THE HEAT PUMP .............................................................................................24
11.1 RECEIVING ....................................................................................................................................24
11.1.1 In Case of Damage ...........................................................................................................24
11.2 SAFETY INSTRUCTIONS ..................................................................................................................24
11.3 HANDLING .....................................................................................................................................24
11.4 STORING .......................................................................................................................................24
11.5 REMOVAL OF PACKAGING...............................................................................................................24
12 POSTIONING FOR INSTALLATION ........................................................................................................25
12.1 MINIMUM CLEARANCES ..................................................................................................................25
12.2 PLINTH /BASE ...............................................................................................................................25
12.3 WITHIN ENCLOSURES.....................................................................................................................25
13 HYDRAULIC INSTALLATION ..................................................................................................................26
13.1 GENERAL.......................................................................................................................................26
13.2 HYDRAULIC CONNECTIONS.............................................................................................................26
13.3 CONDENSATE DRAIN CONNECTION.................................................................................................27
13.4 GLYCOL VOLUME –FREEZING TEMPERATURES ...............................................................................27
13.5 MINIMUM WATER CONTENT –PRIMARY HEATING CIRCUIT ...............................................................27
14 ELECTRICAL INSTALLATION.................................................................................................................28

4
14.1 GENERAL.......................................................................................................................................28
14.2 ELECTRICAL DATA..........................................................................................................................28
14.2.1 Heat Pump Excluding System Pump Options...................................................................28
14.2.2 System Pump –Modulating ..............................................................................................28
14.2.3 System Pump –High Head (Additional Option)................................................................28
14.3 MAIN CONTROLLER –SIEMENS RVS61.843 ...................................................................................29
14.4 EXTENSION MODULES –SIEMENS AVS75.370................................................................................29
14.5 SENSOR VALUES............................................................................................................................30
14.5.1 Temperature Sensor 10K..................................................................................................30
14.5.2 Outside Air Temperature Sensor.......................................................................................30
14.6 INPUTS AND OUTPUTS....................................................................................................................31
14.6.1 Main Controller - Inputs.....................................................................................................31
14.6.2 Main Controller - Outputs..................................................................................................31
14.6.3 Expansion Module –Inputs...............................................................................................32
14.6.4 Expansion Module –Outputs............................................................................................32
15 BASIC SETUP EXAMPLES......................................................................................................................33
15.1 1X S-ASX ASHP TO 1X THERMAL STORE.....................................................................................33
15.2 1X S-ASX ASHP TO 1X THERMAL STORE &1X INDIRECT DHWCYLINDER....................................33
15.3 2X S-ASX IN CASCADE TO 1X THERMAL STORE &1X INDIRECT DHW CYLINDER............................34
16 START UP.................................................................................................................................................35
16.1 PRELIMINARY CHECKS BEFORE TURNING ON..................................................................................35
16.2 TURNING ON..................................................................................................................................35
17 USER INTERFACE / REMOTE CONTROLLER.......................................................................................36
17.1 REMOTE CONTROL DESIGN............................................................................................................36
17.1.1 Front View .........................................................................................................................36
17.1.2 Rear View..........................................................................................................................36
17.1.3 Bottom View ......................................................................................................................36
17.2 TECHNICAL SPECIFICATIONS...........................................................................................................37
17.3 DIMENSIONS..................................................................................................................................38
17.4 INSTALLATION OF THE USER INTERFACE /REMOTE CONTROLLER .....................................................38
17.4.1 Removing the Mounting Plate From The Controller..........................................................38
17.4.2 Fitting The Mounting Plate To A Surface ..........................................................................39
17.4.3 User Interface / Room Controller Wiring ...........................................................................40
17.4.4 Uninstall User Interface / Room Controller........................................................................41
17.5 BASIC INFORMATION ......................................................................................................................42
17.5.1 Operating Elements & Display ..........................................................................................42
17.5.2 Display in Standby.............................................................................................................42
17.5.3 Navigating & Setting Using the Control Knob ...................................................................43
17.5.4 Symbol Meanings..............................................................................................................44
17.5.5 Basic Menu Structure........................................................................................................45
17.6 USER OPERATION..........................................................................................................................46
17.6.1 Home Screen ....................................................................................................................46
17.7 COMMISSIONING THE CONTROLLER USING THE WIZARD...................................................................47
17.7.1 Time of Day and Date .......................................................................................................48
17.7.2 Operator Section ...............................................................................................................49
17.8 OPERATE SERVICE /SETTING PAGES..............................................................................................50
17.8.1 Regional Settings ..............................................................................................................50
17.8.2 Special Operations / Settings............................................................................................51
17.8.3 Expert Level - OEM...........................................................................................................51
18 ON / OFF DEMAND SIGNAL FOR HEAT PUMP.....................................................................................55
18.1 VOLT FREE OPEN /CLOSE .............................................................................................................55
18.1.1 Fixed Setpoint ...................................................................................................................55
18.1.2 Climatic Curves Based on Outdoor Air Temperature........................................................56
18.2 ANALOGUE INPUT 0-10V.................................................................................................................56
19 DOMESTIC HOT WATER MANAGEMENT..............................................................................................57
20 CASCADE CONTROL ..............................................................................................................................58
20.1 CASCADE WIRING..........................................................................................................................58
20.1.1 Cascading S-ASX 60-100 Heat Pumps Together.............................................................58
20.1.2 Master Unit Wiring.............................................................................................................59
20.1.3 Slave Unit Wiring...............................................................................................................59
20.2 CASCADE PARAMETERS .................................................................................................................60
20.2.1 Lead Strategy (3510).........................................................................................................60
20.2.2 Output Band Min & Max (3511 & 3512) ............................................................................60

5
20.2.3 Stage Sequence (3514) ....................................................................................................60
20.2.4 Max Sources Force Charge (3516)...................................................................................60
20.2.5 Max Source Force Charge OT (3517)...............................................................................61
20.2.6 Number Source Defrost Allowed (3518) ...........................................................................61
20.2.7 Release Integral Source Sequence (3530).......................................................................61
20.2.8 Reset Integral Source Sequence (3531)...........................................................................61
20.2.9 Neutral Zone Heating Cascade (ACS)..............................................................................61
20.2.10 Switch on Delay (3533) .....................................................................................................61
20.2.11 Substitute Common Flow Temperature (3538).................................................................62
20.2.12 Auto Source Sequence Change Over (3540) ...................................................................62
20.2.13 Auto Source Sequence Exclusion (3541) .........................................................................62
20.2.14 Leading Source (3544)......................................................................................................62
20.2.15 Temperature Differential Min (3590) –Only if a Common Return Sensor is Fitted ..........62
21 FAULT & RUN INDICATION.....................................................................................................................63
21.1 ADDRESSING AVAILABLE USER OUTPUTS........................................................................................63
21.1.1 Heat Pump Fault (Lock Out) Indication –QX9..................................................................63
21.1.2 Heat Pump Running (In Heating) Indication –QX10 ........................................................63
21.1.3 Heat Pump Running (In DHW) Indication –QX11............................................................63
22 S-ASX Heat Pump Fault / Alarm .............................................................................................................63
22.1 FAULT /ALARM ACTIVATION &RESET .............................................................................................63
22.2 FAULT /ALARM HISTORY................................................................................................................63
22.3 FAULT /ALARM CODE TABLE..........................................................................................................64
23 MAINTENANCE ........................................................................................................................................67
23.1 ONSITE REGULAR MAINTENANCE....................................................................................................67
23.1.1 Structure............................................................................................................................67
23.1.2 Hydraulic Plant ..................................................................................................................67
23.1.3 Electrical Plant...................................................................................................................67
23.1.4 Fans...................................................................................................................................67
23.1.5 Finned Coil ........................................................................................................................67
23.1.6 Finned Coil Condensate Drainage....................................................................................67
23.2 ANNUAL MAINTENANCE /SERVICE VISIT..........................................................................................67
24 SAFETY AND POLLUTION......................................................................................................................68
24.1 ACCESSING THE HEAT PUMP..........................................................................................................68
24.2 RESIDUAL RISKS............................................................................................................................68
24.3 POLLUTION....................................................................................................................................68
24.4 REFRIGERANT SAFETY CARD..........................................................................................................68
24.4.1 Supplier Company and Product Identification...................................................................68
24.4.2 Composition / Information on Ingredients .........................................................................68
24.4.3 Identification of Hazards....................................................................................................68
24.4.4 First Aid Measures ............................................................................................................68
24.4.5 Fire Prevention Measures.................................................................................................69
24.4.6 Measures Against Accidental Spilling of the Product........................................................69
24.4.7 Handling and Storage........................................................................................................69
24.4.8 Control of Exposure / Personal Protection........................................................................69
24.4.9 Chemical Physical Properties............................................................................................69
24.4.10 Stability and Reactivity ......................................................................................................69
24.4.11 Toxicological Information...................................................................................................69
24.4.12 Ecological Information.......................................................................................................70
24.4.13 Consideration on Disposal ................................................................................................70
24.4.14 Information for Transport...................................................................................................70
24.4.15 Information on Regulations ...............................................................................................70
24.4.16 Other Information ..............................................................................................................71

6
1 INTRODUCTION
This manual is written for:
▪The Installer.
▪System Design Engineer.
▪The Service Engineer.
▪The User.
The following symbol is used in this manual:
Warning: Important information concerning the safety of persons and/or the appliance.
Strebel Ltd is not accountable for any damage caused by incorrect following the mounting instructions.
For service and repair purposes use only original Strebel spare parts.
All documentation produced by the manufacturer is subject to copyright law.
1.1 Safety Guidelines
Before carrying out any installation work, please carefully read all the information contained in this manual,
which describes the procedures necessary for correct installation and use of the appliance.
This manual and the wiring diagram supplied with the appliance must be kept in a dry suitable place for possible future
consultation by engineers or users. This manual provides information on installation, operating and
maintenance of the appliance. We suggest that you keep a copy of these instructions near the appliance.
These instructions together with those in any supplemental instruction booklet cover the basic principles to ensure the
satisfactory installation of the appliance, although detail may need slight modification to suit particular local site
conditions.
Follow carefully the instructions contained in the manual and respect the safety regulations in force. The appliance
should be installed by a skilled installer, electrical work carried out by a qualified person, all according to national and
regional standards. Failure to comply with these regulations could deem the warranty invalid.
This appliance must be installed outdoors and connected to a hydronic heating system.
Check the electrical specifications given on the data plate and the wiring diagram before making any electrical
connections.
Deactivate the appliance in case of fault or poor operation. If the appliance requires repair, only contact qualified
companies or engineers approved by the manufacturer and only use original spare parts.
Without written approval of the manufacturer, the internal parts of the appliance may not be changed. When changes
are executed without approval, the appliance certification becomes invalid.
Commissioning, maintenance, and repair must be done by a skilled installer/engineer, according to all applicable
standards and regulations.
The manufacturer declines any responsibility for damage or injury due to non-compliance with the information given
within this manual.
The manufacturer/supplier is not liable for any damage caused by inaccurately following these mounting
instructions. Only original parts may be used when carrying out any repair or service work.
This appliance is not intended for use by persons (including children) with reduced physical, sensory or
mental capabilities, or lack of experience and knowledge, unless they have been given supervision or
instruction concerning use of the appliance by a person responsible for their safety. Children should be
supervised to ensure that they do not play with the appliance.
The relevant British standards for installation, codes of practice or rules in force and in accordance with the
Manufacturer’s instructions.

7
The installation must be carried out in accordance with the following regulations plus relevant codes & standards:
- Due consideration must be given to current Health & Safety Legislation while this product is being installed.
- Key Approved Documents to the Building Regulations, in the region of the United Kingdom that this product is
being installed.
- The Local Building Regulations and Local water by-laws, and the Local Authority recommendations.
- Wiring to the appliance must be in accordance with the IEE (BS 7671) Wiring Regulations the Health and Safety
Document No 635 “The Electricity at Work Regulations 1989” and any local regulations that apply.
- CP 342: Part 2, 1994. Code of practice for centralised hot water supply –buildings other than individual
dwellings.
- CIBSE, Guides A, B and C.
Adhere to all regulations that are in force at the time of installation or service.
1.2 Declaration of Conformity
We declare that this appliance complies with the requirements of the following directives:
•Machinery Directive (MD) 2006/42/EC
•Pressure Equipment Device (PED) 2014/68/EC
•Electromagnetic Compatibility Directive (EMC) 2014/30/EU
•Low Voltage Directive (LVD) 2014/35/EU
1.3 Data Plate
Take notice of the reading on the data plate on each appliance as some reading will differ pending the
accessories ordered and fitted on building the unit.
A: Trademark
B: Mode
B1: Code
C: Serial Number
D: N/A
E: Heating Capacity Output kW –Measured at A7 / W35
F: N/A
G: Heating Capacity Input kW –Measured at A7 / W35
H: Reference Standard
I: Power Supply
L: Maximum Absorbed Current
M: Refrigerant Type and Charge Weight
N: Unit Weight
O: Sound Pressure Level at 1 Metre
P: IP Protection Class
Q: Maximum Pressure –High Pressure Side
R: Maximum Pressure –Low Pressure Side
S: PED Certification Body

8
2 GENERAL INFORMATION
2.1 Unit Description
This series of air to water S-ASX heat pumps satisfies the heating and domestic hot water production
requirements of installations of medium and large size. The possibility to produce up to 65c temperatures makes these
units particularly suitable to radiators circuits as well as to fan coil and under floor heating circuits. All the units are
suitable for outdoor installation.
The refrigerant circuit, contained in a box separate from the air flow to simplify the maintenance operations, is
equipped with two scroll compressors mounted on damper supports, brazed plate heat exchangers, electronic
expansion valve, reverse cycle valve, axial fans, finned coil realized with copper pipes and aluminium fins. The circuit is
protected by high and low pressure switches and flow switches on the plate heat exchanger.
The compressors are arranged in tandem on a single refrigerant circuit and allow the capacity modulation
according to the plant requests to guarantee a high seasonalefficiency. Both the compressors are equipped with
vapour and liquid injection andare placed on an economized refrigerant circuit with plate heat exchanger and
electronic expansion valve dedicated to the injection.
The plate heat exchanger and all the hydraulic pipes are thermally insulated to avoid condensate
generation and reduce thermal losses.
The axial fans, equipped with electronic control of the rotational speed, guarantee high efficiencies in all the
operating conditions and the possibility to reduce the noise level during thenight.
All the units are provided with a phase sequence and correct sequence controller device and with an outdoor
temperature sensor to realize the climatic control. All the units are accurately built and individually tested in the
factory. Only electric and hydraulic connections are required for installation.
2.2 Description of Components
External Structure: Basement, supporting structure and lateral panels are made of galvanized and painted sheet
steel to guarantee good resistance to atmospheric agents. Accessibility to internal parts is possible removing the
frontal and lateral panels. For maintenance also the other panels can be removed.
Refrigerant Circuit: It is contained inside a compartment separated from the air flow to simplify maintenance and
control operations.
The Scroll Compressors (1): Are mounted on damper supports and are protected against over temperatures and
overcurrent’s. Each compressor is equipped with an electrical heater, that is activated when the compressor turns off,
to keepthe compressor crankcase oil temperature high enough to prevent migration ofthe refrigerant during winter
stops and to evaporate any liquid present in the crankcase, in order to prevent possible liquid rushes on starting. Both
the compressors are equipped with vapour and liquid injection and are placed on an economized refrigerant circuit
with plate heat exchanger and electronic expansion valve dedicated to the injection.
The Plant Side Heat Exchanger (2): Is a brazed stainless steel plate heat exchanger, properly insulated to avoid
condensate generation and to minimize thermal losses and protected by a flow switch that detects lack of water flow.
The Source Side Heat Exchanger (3): Is a finned coil realized with grooved copper pipes and aluminium fins with
waved profile to increase the heat exchange coefficient. A tray is placed under the coil to collect the condensate
generated in heating mode.
The Expansion Device (4): An electronic expansion valve, allows the unit to adjust itself to the different operating
conditions keeping steady for heating.
The Filter Dryer (5): The refrigerant circuit of each unit contains a filter to restrain impurity and moisture residuals that
could be present in the circuit, high and low pressure switches in order to assure the compressor to operate inside the
permitted limits.

9
The 4 Way Valve (6): The 4 way valve changes the direction of flow for the defrost cycle.
Liquid Receiver (7): To compensate the different refrigerant charge required in heating and pressure connections
SAE 5/16” – UNF ½” – 20 equipped with pin, gasket and blind nut, as required for the use of R410A refrigerant (they
allow the complete check of the refrigerant circuit: compressor inlet pressure, compressor outlet pressure and
expansion valve upstream pressure). All the pipes on the refrigerant circuit are insulated to avoid condensation
formation and minimise thermal losses.
The Axial Fans (8): Are equipped with a high efficiency electronically commutated (EC) motor and guarantee high
efficiencies in all the operating conditions.
Hydraulic Circuit: All the pipes are thermally insulated to avoid condensate formation and minimise thermal losses.
Thiscircuit is equipped with a modulation circulation pump internal to the casing designed to flow water to the nearest
thermal / buffer store - a high head circulation pump is an additional option and will need to be ordered at the same
time as the S-ASX heat pump is order.
Electrical Wiring Panel: It contains all the power, control and security components necessary to guarantee the unit to
work properly. The unit is managed by a separate controller to which all the electrical loads and the control devices
are connected. The user interface, to be placed indoor, allows to view and to modify, if necessary, all the parameters
of the unit.

10
3 TECHNICAL SPECIFICATIONS
Frame
1
2
3
Model
60
70
80
90
100
U.M.
Power supply
400 - 3 - 50
400 - 3 - 50
400 - 3 - 50
400 - 3 - 50
400 - 3 - 50
V-ph-Hz
Refrigerant
Type
R410A
-
Total Volume
15.5
20
21.5
25
26
kg
Compressor
Type
Scroll with Vapour Injection (EVI)
-
Quantity
2
n°
Oil Charge
3.4
3.4
3.4
3.4
3.4
kg
Refrigerant Circuit
Number of Circuits
1
1
1
1
1
-
Power Steps
0 - 50 - 100
0 - 50 - 100
0 - 50 - 100
0 - 50 - 100
0 - 50 - 100
%
Plant Side Heat Exchanger
Type
Stainless Steel Brazed Plates
-
Quantity
1
n°
Water Volume
8.0
9.0
10.0
12.0
14.0
l
Source Side Heat Exchanger (Primary Side)
Type
Finned Coil
-
Quantity
1
n°
Frontal surface
1.71
2.56
2.56
3.42
3.42
m2
Fans
Type
Axial with High Efficiency EC Motor
-
Quantity
2
3
4
n°
Diameter
630
630
630
630
630
mm
Maximum rotational speed
1140
1140
1140
1140
1140
rpm
Total installed power
1.94
2.91
2.91
3.88
3.88
kW
System Side Hydraulic Circuit (Secondary Side)
Safety Valve Set Point
6
6
6
6
6
bar
Expansion Vessel Volume
12
12
12
12
12
l
System Side Pump - Modulating (Standard Supply)
Type
centrifugal
pump
centrifugal
pump
centrifugal
pump
centrifugal
pump
centrifugal
pump
-
Quantity
1
1
1
1
1
n°
Installed power
1.5
1.5
1.5
1.5
1.5
kW
System Side Pump - High head (Additional Option)
Type
centrifugal
pump
centrifugal
pump
centrifugal
pump
centrifugal
pump
centrifugal
pump
-
Quantity
1
1
1
1
1
n°
Installed power
3.0
3.0
3.0
3.0
3.0
kW

11
3.1 Performance Data
3.1.1 FLOW TEMPERATURE OF 35C
Frame
1
2
3
Model
60
70
80
90
100
U.M.
Power supply
400 - 3 - 50
400 - 3 - 50
400 - 3 - 50
400 - 3 - 50
400 - 3 - 50
V-ph-Hz
IP
Heating A7W35 (Source: Air in 7°C d.b. 6°C w.b. / Plant: Water in 30°C out 35°C)
Heating capacity
57.5
67.8
75.7
85.4
99.5
kW
Power input
12.2
14.4
16.1
18.1
21.1
kW
COP
4.71
4.71
4.70
4.72
4.72
-
Water flow rate system side
9923
11689
13058
14737
17179
l/h
Pressure drops system side
22
24
24
22
21
kPa
Heating A2W35 (Source: Air in 2°C d.b. 1°C w.b. / Plant: Water in 30°C out 35°C)
Heating capacity
48.5
57.3
63.9
72.1
84.0
kW
Power input
12.2
14.4
16.1
18.1
21.1
kW
COP
3.98
3.98
3.97
3.98
3.98
-
Water flow rate system side
8382
9888
11031
12451
14512
l/h
Pressure drops system side
16
18
18
16
16
kPa
Heating A-4W35 (Source: Air in -4°C d.b. -5°C w.b. / Plant: Water in 30°C out 35°C)
Heating capacity
44.2
52.1
58.1
65.6
76.6
kW
Power input
12.2
14.4
16.1
18.1
21.2
kW
COP
3.62
3.62
3.61
3.62
3.61
-
Water flow rate system side
7637
9005
10044
11343
13231
l/h
Pressure drops system side
14
15
15
13
13
kPa
Heating A-7W35 (Source: Air in -7°C d.b. -8°C w.b. / Plant: Water in 30°C out 35°C)
Heating capacity
41.4
48.8
54.5
61.5
71.6
kW
Power input
12.3
14.4
16.1
18.1
21.2
kW
COP
3.37
3.39
3.39
3.40
3.38
-
Water flow rate system side
7152
8434
9421
10633
12382
l/h
Pressure drops system side
12
13
13
12
12
kPa
All data declared to EN 14511 –the above values are referred to units without options or accessories.

12
3.1.2 FLOW TEMPERATURE OF 45C
Frame
1
2
3
Model
60
70
80
90
100
U.M.
Power supply
400 - 3 - 50
400 - 3 - 50
400 - 3 - 50
400 - 3 - 50
400 - 3 - 50
V-ph-Hz
IP
Heating A7W45 (Source: Air in 7°C d.b. 6°C w.b. / Plant: Water in 40°C out 45°C)
Heating capacity
58.2
68.6
76.6
86.4
101
kW
Power input
15.6
18.4
20.5
23.1
27.0
kW
COP
3.73
3.73
3.74
3.74
3.74
-
Water flow rate system side
10080
11870
13260
14963
17449
l/h
Pressure drops system side
22
24
25
22
22
kPa
Heating A2W45 (Source: Air in 2°C d.b. 1°C w.b. / Plant: Water in 40°C out 45°C)
Heating capacity
49.3
58.2
64.9
73.3
85.4
kW
Power input
15.5
18.3
20.5
23.1
27.0
kW
COP
3.18
3.18
3.17
3.17
3.16
-
Water flow rate system side
8551
10080
11244
12704
14807
l/h
Pressure drops system side
17
18
18
16
16
kPa
Heating A-4W45 (Source: Air in -4°C d.b. -5°C w.b. / Plant: Water in 40°C out 45°C)
Heating capacity
45.1
53.1
59.3
66.9
78.1
kW
Power input
15.6
18.3
20.5
23.1
27.1
kW
COP
2.89
2.90
2.89
2.90
2.88
-
Water flow rate system side
7821
9211
10288
11609
13538
l/h
Pressure drop system side
14
16
16
14
14
kPa
Heating A-7W45 (Source: Air in -7°C d.b. -8°C w.b. / Plant: Water in 40°C out 45°C)
Heating capacity
42.4
49.9
55.7
62.9
73.3
kW
Power input
15.6
18.3
20.5
23.1
27.0
kW
COP
2.72
2.73
2.72
2.72
2.71
-
Water flow rate system side
7351
8655
9663
10914
12722
l/h
Pressure drops system side
13
14
14
12
12
kPa
All data declared to EN 14511 –the above values are referred to units without options or accessories.

13
3.1.3 FLOW TEMPERATURE OF 55C
Frame
1
2
3
Model
60
70
80
90
100
U.M.
Power supply
400 - 3 - 50
400 - 3 - 50
400 - 3 - 50
400 - 3 - 50
400 - 3 - 50
V-ph-Hz
IP
Heating A7W55 (Source: Air in 7°C d.b. 6°C w.b. / Plant: Water in 47°C out 55°C)
Heating capacity
59.2
69.7
77.8
87.8
102
kW
Power input
19.1
22.5
25.1
28.3
33.1
kW
COP
3.10
3.10
3.10
3.10
3.08
-
Water flow rate system side
6440
7584
8466
9556
11147
l/h
Pressure drops system side
10
11
11
10
10
kPa
Heating A2W55 (Source: Air in 2°C d.b. 1°C w.b. / Plant: Water in 47°C out 55°C)
Heating capacity
50.3
59.3
66.3
74.9
87.3
kW
Power input
19.1
22.4
25.2
28.4
33.2
kW
COP
2.63
2.65
2.63
2.64
2.63
-
Water flow rate system side
5481
6462
7213
8150
9502
l/h
Pressure drops system side
7
8
8
7
7
kPa
Heating A-4W55 (Source: Air in -4°C d.b. -5°C w.b. / Plant: water in 47°C out 55°C)
Heating capacity
46.3
54.5
60.9
68.7
80.2
kW
Power input
19.1
22.5
25.2
28.4
33.3
kW
COP
2.42
2.42
2.42
2.42
2.41
-
Water flow rate system side
5045
5939
6636
7486
8728
l/h
Pressure drop system side
6
7
7
6
6
kPa
Heating A-7W55 (Source: Air in -7°C d.b. -8°C w.b. / Plant: water in 47°C out 55°C)
Heating capacity
43.6
51.4
57.4
64.8
75.5
kW
Power input
19.2
22.5
25.2
28.4
33.2
kW
COP
2.27
2.28
2.28
2.28
2.27
-
Water flow rate system side
4751
5601
6255
7061
8227
l/h
Pressure drops system side
6
6
6
6
6
kPa
All data declared to EN 14511 –the above values are referred to units without options or accessories.

14
3.1.4 FLOW TEMPERATURE OF 65C
Frame
1
2
3
Model
60
70
80
90
100
U.M.
Power supply
400 - 3 - 50
400 - 3 - 50
400 - 3 - 50
400 - 3 - 50
400 - 3 - 50
V-ph-Hz
IP
Heating A7W65 (Source: Air in 7°C d.b. 6°C w.b. / Plant: Water in 55°C out 65°C)
Heating capacity
60.5
71.2
79.5
89.8
105
kW
Power input
23.8
27.9
31.3
35.3
41.3
kW
COP
2.54
2.55
2.54
2.54
2.54
-
Water flow rate system side
5293
6229
6955
7856
9160
l/h
Pressure drops system side
7
8
8
7
7
kPa
Heating A2W65 (Source: Air in 2°C d.b. 1°C w.b. / Plant: Water in 55°C out 65°C)
Heating capacity
51.8
61.0
68.2
77.0
89.7
kW
Power input
23.8
28.0
31.4
35.3
41.3
kW
COP
2.18
2.18
2.17
2.18
2.17
-
Water flow rate system side
4532
5337
5967
6736
7847
l/h
Pressure drops system side
5
6
6
5
5
kPa
Heating A-4W65 (Source: Air in -4°C d.b. -5°C w.b. / Plant: Water in 55°C out 65°C)
Heating capacity
47.8
56.4
63.0
71.1
82.8
kW
Power Input
23.9
28.1
31.4
35.4
41.4
kW
COP
2.00
2.01
2.01
2.01
2.00
-
Water flow rate system side
4182
4934
5512
6220
7244
l/h
Pressure drop system side
5
5
5
5
5
kPa
Heating A-7W65 (Source: Air in -7°C d.b. -8°C w.b. / Plant: Water in 55°C out 65°C)
Heating capacity
45.3
53.3
59.6
67.3
78.4
kW
Power input
23.9
28.1
31.5
35.4
41.4
kW
COP
1.90
1.90
1.89
1.90
1.89
-
Water flow rate system side
3963
4663
5214
5888
6859
l/h
Pressure drops system side
4
4
4
4
4
kPa
All data declared to EN 14511 –the above values are referred to units without options or accessories.

15
3.2 ErP Specification Datasheet
Data declared according to the European Regulation 811/2013
Model:
S-ASX 60
S-ASX 70
S-ASX 80
S-ASX 90
S-ASX 100
Air to Water Heat Pump:
Yes
Yes
Yes
Yes
Yes
Water to Water Heat Pump:
No
No
No
No
No
Brine to Water Heat Pump:
No
No
No
No
No
Low Temperature Heat Pump:
No
No
No
No
No
Equipped with a Supplementary Heater:
No
No
No
No
No
Heat Pump Combination Heater:
No
No
No
No
No
Average Climate Conditions: Declared for Low Temperature Applications - 35c
Unit:
Value
Value
Value
Value
Value
Seasonal Space Heating Efficiency Class
-
A++
A++
A++
A++
A++
Seasonal Coefficient of Performance (SCOP)
4.25
4.21
4.24
4.23
4.26
Seasonal Space Heating Energy Efficiency (ɳs)
%
167
166
167
166
167
Annual Energy Consumption (Qhe)
kWh
22907
27213
30207
34151
39668
Average Climate Conditions: Declared for Medium Temperature Applications - 55c
Unit:
Value
Value
Value
Value
Value
Seasonal Space Heating Efficiency Class
-
A++
A++
A++
A++
A++
Seasonal Coefficient of Performance (SCOP)
3.56
3.55
3.57
3.56
3.57
Seasonal Space Heating Energy Efficiency (ɳs)
%
139
139
140
140
140
Annual Energy Consumption (Qhe)
kWh
28435
33588
37388
42217
49293
Sound Power Level Indoors (Lwa)
dB
-
-
-
-
-
Sound Power Level Outdoors (Lwa)
dB
79
80
80
81
81

16
4 DIMENSIONS & CLEARANCES
4.1 Dimensions
4.2 Required Clearances
To guarantee the correct operation and accessibility to facilitate full maintenance procedures, please
ensure the free area around the appliance is as shown below to all models.
S-ASX 60
S-ASX 70 & 80
S-ASX 90 & 100
A
1130 mm
1130 mm
1130 mm
B
1710 mm
2430 mm
3130 mm
H
1980 mm
1980 mm
1980 mm

17
5 STANDARD SUPPLY, ADDITIONAL OPTIONS & ACCESSORIES
5.1 Standard Supply
The following items and software are supplied as standard with each S-ASX 60 -100 air source heat pump:
•1 x Complete ASHP as described in chapter 2.2: Pre-fitted, pressure tested and pre-charged.
•1 x Main Heat Pump Controller: Fitted to the ASHP with all internal components pre-wired. The controller
consists of:
i) 1 x Siemens Albatros2 RVS61.843 main controller.
ii) 1 x Siemens AVS75.370 extension module.
•1 x Modulating System Pump: To flow through the system side of the air source heat pump plate heat
exchanger to nearest thermal store pre-fitted and pre-wired with the heat pump casing.
•1 x Outdoor Air Sensor: Supplied loose, to be fitted and wired to heat pump controller on site.
•2 x NTC Temperature Sensors 10k: To be fitted into the top & bottom pockets of the thermal store and wired
back to the heat pump controller.
•Soft Start Function: Software activated as standard which reduces the compressor start current.
•Low Noise Setup: Acoustic insulation pre-fitted around refrigerant circuit and sound jackets pre-fitted around
compressors.
•Cascade Software: The software will require activating on site once the cascade wiring between multiple
heat pumps has been completed by the installers.
•Modbus Software: Allows communication by Modbus software.
In addition to the above, a wired remote room controller will be supplied per installation as it can work with one heat
pump individually or multiple heat pumps in cascade:
•Wired Remote Controller: Supplied loose, it will need to be installed within plant room and wired back to the
heat pump controller.

18
5.2 Additional Options
Depending on the installation requirements, we can provide additional options to be installed within the appliance casing
to facilitate. These options will need to be ordered with the appliance so that they can be fitted in our factory on building
the appliance.
Item
Description
High Head System Pump
Allows the circulation of the water on the system side of the heat pump to the thermal
/ buffer vessel with a higher available head.
Internal DHW 3 Way Valve
Allows to divert the hot water produced by the heat pump from the heating circuit to
the domestic hot water circuit.
NTC Temp Sensor 10K
Required for a DHW circuit to monitor the DHW temperature within cylinder.
AVS 75.370 Extension
Module
In case additional relays are required for installation requirements. An additional two
modules can be added in total per heat pump controller.
5.2.1 SYSTEM SIDE INTERAL PUMP SETUP EXAMPLE –MODULATING OR HIGH HEAD
The location of the system pump is located where the black arrow is pointing to.
5.2.2 INTERNAL 3WAY VALVE EXAMPLE –DHW PRODUCTION
The location of the DHW 3 way valve is located where the black arrow is pointing to.
5.3 Accessories
Item
Description
External DHW 3 Way Valve
Instead of an internal valve, this can be mounted external within the plantroom.
Coil Protection Grills
Protect the external surface of the finned coil.
Rubber Vibration Dampers
Reduces the transmission of vibration to the surface and to reduce noise levels.

19
6 WEIGHTS
6.1 S-ASX 60 –100: Standard Supply
The following weight measurements are based on all items supplied as standard as listed in chapter 5.
6.1.1 TRANSPORT WEIGHT
Model:
S-ASX 60
S-ASX 70
S-ASX 80
S-ASX 90
S-ASX 100
Unit
Total Weight
801
928
938
1063
1078
Kg
6.1.2 INSTALLED –DRY WEIGHT
Model:
S-ASX 60
S-ASX 70
S-ASX 80
S-ASX 90
S-ASX 100
Unit
Total Weight
790
916
926
1050
1065
Kg
6.1.3 INSTALLED –FILLED WEIGHT
Model:
S-ASX 60
S-ASX 70
S-ASX 80
S-ASX 90
S-ASX 100
Unit
Total Weight
814
942
954
1083
1102
Kg
6.2 S-ASX 60 –100: DHW 3 Way Valve
If the internal DHW 3 way valve option is added to the S-ASX 60 –100 air source heat pumps, then the below weight
must be added to the above weights to confirm a total weight:
Model:
S-ASX 60
S-ASX 70
S-ASX 80
S-ASX 90
S-ASX 100
Unit
Total Weight of internal DHW 3 way valve
27
29
29
34
34
Kg
7 NOISE LEVELS
The table below shows the noise level per S-ASX 60 –100 model:
Model
Sound power levels [dB]
By octave bands [Hz]
Sound Power
Level
Sound Pressure Level
At 1
Metre
At 5
Metres
At 10
Metres
63
125
250
500
1000
2000
4000
8000
[dB]
[dB(A)]
[dB(A)]
[dB(A)]
[dB(A)]
S-ASX 60
81.0
78.9
77.2
73.5
70.0
65.8
60.1
52.6
85
76
58
49
44
S-ASX 70
81.9
79.8
78.1
74.4
70.9
66.7
61.0
53.5
86
77
59
50
45
S-ASX 80
82.0
79.9
78.2
74.5
71.0
66.8
61.1
53.6
86
77
59
50
45
S-ASX 90
82.9
80.8
79.1
75.4
71.9
67.7
62.0
54.5
87
78
59
51
46
S-ASX 100
83.0
80.9
79.2
75.5
72.0
67.8
62.1
54.6
87
78
59
51
46
Reference Conditions:
Performances referred to units operating in heating mode at nominal conditions A7W35.
Unit placed in free field on reflecting surface (directional factor equal to 2).
The sound power level is measured according to ISO 3744 standard.
The sound pressure level is calculated according to ISO 3744 and is referred to 1 metre from the external surface of
the unit.

20
8 PRESSURE DROP
8.1 Pressure Drop Through Heat Pump Plate Heat Exchanger
The below table shows the pressure drop through the system side of the plate heat exchanger for all five models:
8.2 Pressure Drop Through DHW 3 Port Valve
The below table shows the pressure drop through the DHW 3 port valve: