Kensa Heat Pumps 7kW Evo Guide

Evo Heat Pump Manual Version 5
Page 1 of 84
Evo Heat Pump
Installaon and Commissioning Manual
Copyright ©2017 Kensa Heat Pumps Ltd
Manual
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Evo Heat Pump Manual Version 5
Page 2 of 84
Contents Page
Secon Descripon Page
1....................... Introducon .................................................................................. 6
2....................... Safety Informaon ........................................................................ 7
2.1........................... Access ...................................................................................................................... 7
2.2........................... Lighng .................................................................................................................... 7
2.3........................... Tools and consumables ........................................................................................... 7
2.4........................... Handling ................................................................................................................... 7
2.5........................... Residual hazards ...................................................................................................... 7
2.6........................... Freezing ................................................................................................................... 7
2.7........................... Disposal/decommissioning ...................................................................................... 7
3....................... General product informaon ........................................................ 8
3.1........................... Equipment delivery and handling ............................................................................ 8
3.2........................... Kensa Evo technical details ...................................................................................... 9
3.3……………………….. Water Pump Curves…………………………………………………………………………………………….. 10
4....................... Installaon.................................................................................... 12
4.1........................... The Golden Rules of installing a heat pump ............................................................ 12
4.2 .......................... Underoor heang schemac ................................................................................ 12
4.3........................... Radiators schemac. Space heang only ................................................................ 14
4.4………………………… Second Set Point Schemac ……………………………………………………………………………….. 15
4.5........................... Domesc Hot Water (DHW) - Schemac ................................................................. 16
4.5.1........................ Type of DHW tank ................................................................................................... 16
4.5.2........................ DHW tank size ......................................................................................................... 16
4.5.3........................ Immersion heater .................................................................................................... 16
4.5.4........................ Three Port Diverng Valve ...................................................................................... 16
4.5.5........................ Tank Thermostat ...................................................................................................... 17
4.5.6........................ DHW Timeclock ....................................................................................................... 17
4.5.7........................ Secondary Returns................................................................................................... 17
4.5.8…………………….. Towel Rails …………………………………………………………………………………………………………. 18
4.6........................... Mechanical Installaon ........................................................................................... 20
4.6.1........................ Locang the Heat Pump .......................................................................................... 20
4.6.2…………………….. Removing the transit bolts ………………………………………………………………………………….. 20
4.6.3…………………….. Posioning the unit …………………………………………………………………………………………….. 22
4.6.4........................ Recommended clearances and dimensions............................................................. 22
4.6.5........................ Installaon of the heat pump .................................................................................. 23
4.6.6 ....................... Meter Installaons................................................................................................... 26
4.6.6.1 .................... Meter Ready Installaons........................................................................................ 26
4.6.6.2………………… Electrical metering………………………………………………………………………………………………. 28
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Contents Page
Secon Descripon Page
4.7........................... Electrical installaon .............................................................................................. 29
4.7.1........................ Cable entry points .................................................................................................. 30
4.7.2..................... Electrical isolaon…………………................................................................................ 31
4.7.3 .................... Wiring diagrams……………………….. .......................................................................... 32
4.7.3.1..................... Main power supply terminals ................................................................................. 32
4.7.3.2..................... Main PCB terminals……………………………………………. ................................................. 32
4.7.3.3..................... Main PCB terminals descripon ............................................................................. 33
4.7.3.4………………….. Generic heat pump wiring diagram……………………………………………………………………. 35
4.7.3.5………………….. Central heang me clock and thermostat heat pump wiring diagram………………. 36
4.7.3.6………………….. Mulple underoor control units heat pump wiring diagram…………………………….. 37
4.7.3.7………………….. Heat pump wiring diagram ulising the second set point funcon (underoor
and radiators)……………………………………………………………………………………………………..
38
4.7.4…………………… Weather compensaon……………………………………………………………………………………… 39
5....................... Mechanical set to run ................................................................... 40
5.1........................... Purging the ground array of air .............................................................................. 40
5.1.1........................ Purging procedure for mulple slinkies ................................................................. 40
5.1.2........................ Adding anfreeze for mulple slinkies ................................................................... 42
5.1.2.1..................... Pressurising the system .......................................................................................... 43
5.1.2.2..................... Pressure Tesng in accordance to BS805 Secon 11.3.3.4 .................................... 44
5.1.3........................ Purging procedure and adding anfreeze for single slinkies .................................. 45
5.1.4........................ Tesng of anfreeze concentraon ....................................................................... 47
5.1.5........................ Heang distribuon and load side purging ............................................................ 48
5.2........................ Reassembling and turning the heat pump on for the rst me ............................. 48
6....................... Controller ………………….................................................................. 50
6.1……………………….. On start up…………………………………………………………………………………………………………. 50
6.2……………………….. Guide to home screen icons……………………………………………………………………………….. 51
6.3……………………….. Main menu…………………………………………………………………………………………………………. 52
6.3.1…………………….. Main menu icons……………………………………………………………………………………………….. 52
6.4……………………….. Diagnoscs menu……………………………………………………………………………………………….. 53
6.4.1…………………….. Diagnoscs- Temperatures………………………………………………………………………………… 53
6.4.2…………………….. Diagnoscs- Pressures……………………………………………………………………………………….. 54
6.4.3…………………….. Diagnoscs- Pumps parameters………………………………………………………………………... 54
6.4.4…………………….. Diagnoscs—Compressor performance……………………………………………………………… 55
6.4.5…………………….. Diagnoscs—Pulse Input……………………………………………………………………………………. 55
6.4.6…………………….. Diagnoscs—Input voltage…………………………………………………………………………………. 56
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Evo Heat Pump Manual Version 5
Page 4 of 84
Contents Page.
Secon Descripon Page
6.4.7…………………….. Diagnoscs—History log……………………………………………………………………………………… 56
6.4.8…………………….. Diagnoscs—DHW and external immersion………………………………………………………… 58
6.4.9…………………….. Diagnoscs—Supplementary heat………………………………………………………………………. 58
6.5……………………….. Commissioning……………………………………………………………………………………………………. 60
6.5.1…………………….. Commissioning—Funcon tests…………………………………………………………………………… 61
6.5.1.1…………………. Commissioning—Funcon tests page 2……………………………………………………………….. 62
6.5.2…………………….. Commissioning—Set up…………………..………………………………………………………………….. 62
6.5.2.1………………….. Commissioning—Set up—Water temperatures………………………………………….………. 63
6.5.2.2………………….. Commissioning—Set up—Low ow dierenals……………………………………….……….. 64
6.5.2.3………………….. Commissioning—Set up—Pump exercise roune………………………………………….……. 65
6.5.2.4………………….. Commissioning—Set up—Weather compensaon……………………………………….…….. 65
6.5.2.5………………….. Commissioning—Set up—Water pressures………………………..……………………………….. 66
6.5.2.6………………….. Commissioning—Set up—Pump speeds………………………………..…………………………….. 66
6.5.2.7………………….. Commissioning—Set up page 2……………………………………………………………………………. 67
6.5.2.8………………….. Commissioning—Set up page 2—Supplementary heang……………….………………….. 67
6.5.2.9………………….. Commissioning—Set up page 2—DHW parameters………………………………..………….. 68
6.5.2.10………………… Commissioning—Set up page 2—Acve cooling……………………….…………………………. 69
6.5.2.11………………… Commissioning—Set up page 2—Home screen display……………………………….………. 70
6.5.2.12………………… Commissioning—Set up page 2—Passive cooling………………………………………….…….. 70
6.5.2.13………………… Commissioning—Set up page 2—Default reset….……………………………………………….. 70
6.6……………………….. Error log………………………………………………………………………………………………………………. 72
6.7……………………….. Sengs……………………………………………………………………………………………………………….. 73
6.7.1…………………….. Sengs—Display and sound……………………………………………….…………..………………….. 73
6.7.2…………………….. Sengs—Date and me………………………………………………………...…………………………… 74
6.8……………………….. My product………………………………………………………………………………………………………….. 75
7....................... Fault nding ................................................................................. 76
8....................... Warranty...................................................................................... 80
8.1........................... Terms and Condions............................................................................................. 80
8.1.1........................ Persons covered by the Warranty........................................................................... 80
8.1.2........................ Validity period of the Warranty.............................................................................. 80
8.1.3........................ Scope....................................................................................................................... 80
8.1.4........................ General excepons ................................................................................................. 80
8.1.5........................ Care of Duty ............................................................................................................ 81
8.1.6........................ In the event of Damage .......................................................................................... 81
8.1.7........................ Replacement Parts.................................................................................................. 81
9....................... Heat pump sengs sheet ............................................................. 82
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Evo Heat Pump Manual Version 5
Page 5 of 84
Heat Pump
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Evo Heat Pump Manual Version 5
Page 6 of 84
1. Introducon—a message from the Managing Director
Kensa Heat Pumps has been manufacturing ground source heat pumps since 1999. In
the early days, it was dicult to nd contractors willing to consider the technology.
As a consequence, Kensa made considerable eorts to simplify the installaon pro-
cess to allow any competent plumber to perform the work. The company is now
reaping its rewards as heat pumps become mainstream heang appliances.
The purpose of this manual is to guide you through the installaon process. It is
expected that all the required informaon has been provided to allow you to connect
the heat pump. Crical instrucons, aimed at ensuring you do not experience any dicules, are
highlighted on the ‘Golden Rules’ in the installaon secon.
Please note you will need to speak to the Technical Support Team on 01392 367080 to receive the ‘online
commissioning’ service, oered free-of-charge. Opening hours are 8.00am to 5.00pm .
Finally, please feel free to contact Kensa should you have any quesons, wish to consider ground source
heat pumps for any future projects or even just to share your experiences of using a ground source heat
pump with us.
Simon Lomax
Managing director
Kensa Heat Pumps Ltd
For further informaon on
ground source heat pumps and
their applicaon, please refer to
www.kensaheatpumps.com
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Evo Heat Pump Manual Version 5
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2. Safety informaon
Safe operaon of this unit can only be guaranteed if it is properly installed and commissioned in
compliance with the manufacturer’s requirements. General installaon and safety instrucons for pipeline
and plant construcon, as well as the proper use of tools and safety equipment must also be complied
with.
Manufacturer:-
Kensa Heat Pumps
Mount Wellington
Chacewater
Truro
Cornwall
TR4 8RJ
Tel [phone]
www.kensaheatpumps.com
The product is designed and constructed to withstand the forces encountered during normal use. Use of
the product for any other purpose, or failure to install the product in accordance with these Installaon
and Commissioning Instrucons, could damage the product, will invalidate the warranty, and may cause
injury or fatality to personnel.
2.1 Access
Ensure safe access before aempng to work on the product. Arrange suitable liing gear if required.
2.2 Lighng
Ensure adequate lighng, parcularly where detailed or intricate work is required.
2.3 Tools and consumables
Before starng work ensure that you have suitable tools and / or consumables available.
2.4 Handling
Manual handling of large and /or heavy products may present a risk of injury. Liing, pushing, pulling,
carrying or supporng a load by bodily force can cause injury parcularly to the back. You are advised to
assess the risks taking into account the task, the individual, the load and the working environment and use
the appropriate handling method depending on the circumstances of the work being done.
2.5 Residual hazards
Many products are not self-draining. Take due care when dismantling or removing the product from an
installaon.
2.6 Freezing
Provision must be made to protect products which are not self-draining against frost damage in
environments where they may be exposed to temperatures below freezing point.
2.7 Disposal/Decommissioning
Kensa oer a life me decommissioning service for this product. This is available on a return to base basis
(carriage at users’ cost).
Disposal of any anfreeze water mix should follow the disposal instrucons as laid out on the COSH Safety
Data Sheet available on request.
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Evo Heat Pump Manual Version 5
Page 8 of 84
3. General Product Informaon
This manual explains how to install and commission a Kensa Evo ground source heat pump.
The Evo Single Compressor Heat Pump is designed to provide a low cost renewable heat source for a build-
ings heang system. In addion, and if required, the Kensa Evo can also provide domesc hot water. Heat
pumps can provide lower running costs and will generate signicantly lower carbon emissions compared
with tradional fossil fuels.
The Kensa Evo Single Compressor Heat Pump is designed for straighorward installaon and requires no
specialist training to install. However the installaon must conform to all relevant construcon and electri-
cal codes and comply with the requirements of the Microgeneraon Cercaon Scheme (MCS) MIS3005
’Requirements for Contractors undertaking the Supply, Design, Installaon, Set to Work Commissioning
and Handover of Microgeneraon Heat Pump Systems’
3.1 Equipment delivery and handling.
Factory shipment
Prior to shipment, the Kensa Evo Single Compressor Heat Pump is tested, calibrated and inspected to
ensure proper operaon.
Receipt of shipment
Each pallet should be inspected at the me of delivery for possible external damage. Any visible damage
should be recorded immediately on the carrier’s copy of the delivery slip.
Each pallet should be unpacked carefully and its contents checked for damage.
If it is found that some items have been damaged or are missing, nofy Kensa immediately and provide full
details. In addion, damage must be reported to the carrier with a request for their on-site inspecon of
the damaged item and its shipping pallet.
Storage
If a Kensa Heat Pump is to be stored prior to installaon, the environmental storage condions should be
at a temperature between 0°C and 70°C (32°F and 158°F), and between 10% and 80% relave humidity
(non-condensing).
Fig 1. Evo heat pump
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3.2 Kensa Evo Technical Details—Single Compressor
Nominal
Thermal
Output
Power
supply
rang
Max
running
Current
Typical
running
current
Typical
starng
current
Power
input*
Nominal dry
weight
(Approx)
Compressors Dimensions Connecon size Recommended
heat transfer
area in DHW
tank
kW Amps Amps Amps Amps kW Kg Number HxWxD mm OD m2
Single Phase—230 Volts AC 50 Hz
725 17 9 18 1.7 153 Single 1145x600x575 28 1.75 925 22 13 29 2.2 154 Single 1145x600x575 28 2.25
13 40 33 16 41 3.2 167 Single 1145x600x575 28 3.25 17 50 45 24 45 4.4 167 Single 1145x600x575 28 4.25
380-420V 50Hz
15 16 12 874 3.8 170 Single 1145x600x575 28 3.75
The gures above are based on a rang to BS EN14511, 0 deg C from the ground, 35 deg C ow to underoor.
* This gure includes the power consumpon of the inbuilt water pumps
For claricaon of starng currents and details on how these gures are calculated please contact Kensa.
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Evo Heat Pump Manual Version 5
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3.3 Water pump curves
The following pump curves are for the water pumps ed within the Evo range of Kensa Heat Pumps.
Heat Pump Duty
Design
Flowrate
kg/min
Pressure drop kPa
across heat pump @
design owrate
Water p ump Part
Number
7kW Evo Load based on 30 to 35C 22.4 3.98 30-001C
Ground based on 0 to –4C29.1 11.7 30-002C
9kW Evo Load based on 30 to 35C 28.5 5.7 30-001C
Ground based on 0 to –4C28.4 11 30-002C
13kW Evo
Load based on 30 to 35C 37.9 10.1 30-002C
Ground based on 0 to –4C39.2 17.1 30-003C
17kW Evo
Load based on 30 to 35C 56.4 34 30-002C
Ground based on 0 to –4C52.3 29.3 30-003C
Load based on 30 to 35C 45.9 13.6 30-002C
15kW Evo 3
Phase Ground based on 0 to –4C42.8 20.6 30-003C
Fig 2 30-001C Pump Curve
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