Kensa Heat Pumps Shoebox Guide

Shoebox Heat Pump Manual (Slinkies) Version 4
Page 1 of 42
Shoebox Heat Pump (Slinkies)
Installation and Commissioning Manual
Warranty Fault Finding Commissioning Installation
electrical
Installation
mechanical
Installation
schematics
Installation General product
information
Safety
information
Introduction
Heat Pump
settings sheet
Copyright ©2017 Kensa Heat Pumps Ltd
Manual

Shoebox Heat Pump Manual (Slinkies) Version 4
Page 2 of 42
Contents Page
Section Description Page
1....................... Introduction .................................................................................. 4
2....................... Safety Information ........................................................................ 5
2.1........................... Access ...................................................................................................................... 5
2.2........................... Lighting .................................................................................................................... 5
2.3........................... Tools and consumables ........................................................................................... 5
2.4........................... Handling ................................................................................................................... 5
2.5........................... Residual hazards ...................................................................................................... 5
2.6........................... Freezing ................................................................................................................... 5
2.7........................... Disposal/decommissioning ...................................................................................... 5
3....................... General product information ........................................................ 6
3.1........................... Equipment delivery and handling ............................................................................ 6
3.2........................... Kensa Compact technical data ................................................................................. 7
4....................... Installation.................................................................................... 8
4.1........................... The Golden Rules of installing a heat pump ............................................................ 8
4.2 .......................... Underfloor heating schematics ............................................................................... 8
4.2.1........................ Underfloor with a single manifold. Space heating only ........................................... 9
4.2.2........................ Underfloor with multiple manifolds. Space heating only ........................................ 9
4.3........................... Radiators. Space heating only ................................................................................. 10
4.4........................... Domestic Hot Water - Schematic ............................................................................ 10
4.4.1........................ Type of DHW tank ................................................................................................... 11
4.4.2........................ DHW tank size ......................................................................................................... 11
4.4.3........................ Three Port Diverting Valve ...................................................................................... 11
4.4.4........................ Tank Thermostat ...................................................................................................... 11
4.4.5........................ DHW Timeclock ....................................................................................................... 11
4.4.6........................ Secondary Return..................................................................................................... 11
4.5........................... Mechanical Installation ........................................................................................... 14
4.5.1........................ Locating the Heat Pump .......................................................................................... 14
4.5.2........................ Dimensions........................ ...................................................................................... 14
4.5.3........................ Installation of the heat pump .................................................................................. 15
4.5.4........................ Meter Installation..................................................................................................... 17
4.5.4.1..................... Meter Ready Installations........................................................................................ 17
4.6........................... Electrical Installation ............................................................................................... 21
4.6.1........................ Single Underfloor Control Unit ................................................................................ 22
4.6.2 ....................... Multiple Underfloor Control Units .......................................................................... 23
4.6.3....................... Radiator with Thermostat ....................................................................................... 23
4.6.4........................ DHW time clock and 3 way diverting valve wiring .................................................. 24
Safety
information
General product
information
Installation Installation
schematics
Installation
mechanical
Installation
electrical
Commissioning Fault Finding Warranty Heat Pump
settings sheet
Introduction

Shoebox Heat Pump Manual (Slinkies) Version 4
Page 3 of 42
Contents Page
Section Description Page
5....................... Commissioning ............................................................................. 26
5.1........................... Purging the slinkies of air ....................................................................................... 26
5.1.1........................ Purging procedure for multiple slinkies ................................................................. 26
5.1.2........................ Adding antifreeze for multiple slinkies ................................................................... 28
5.1.2.1..................... Pressurizing the system .......................................................................................... 29
5.1.2.2..................... Pressure Testing in accordance to BS805 Section 11.3.3.4 .................................... 30
5.1.3........................ Purging procedure and adding antifreeze for single slinkies .................................. 31
5.1.4........................ Testing of antifreeze concentration ....................................................................... 33
5.1.5........................ Heating distribution and load side purging ............................................................ 34
5.1.6........................ Reassembling the heat pump ................................................................................. 34
5.2........................... Heat pump operation ............................................................................................. 35
5.3........................... Turning the heat pump on for the first time .......................................................... 35
5.4........................... Altering the flow temperature from the heat pump .............................................. 36
5.4.1........................ To read flow temperatures and refrigerant pressures ........................................... 37
5.4.2........................ To change the heat pump return flow temperatures ............................................ 37
6....................... Fault finding ................................................................................. 39
7....................... Warranty...................................................................................... 40
7.1........................... Terms and Conditions............................................................................................. 40
7.1.1........................ Persons covered by the Warranty........................................................................... 40
7.1.2........................ Validity period of the Warranty.............................................................................. 40
7.1.3........................ Scope....................................................................................................................... 40
7.1.4........................ General exceptions ................................................................................................. 40
7.1.5........................ Care of Duty ............................................................................................................ 41
7.1.6........................ In the event of Damage .......................................................................................... 41
7.1.7........................ Replacement Parts.................................................................................................. 41
8....................... Heat pump settings sheet ............................................................. 44
Warranty Fault Finding Commissioning Installation
electrical
Installation
mechanical
Installation
schematics
Installation General product
information
Safety
information
Introduction
Heat Pump
settings sheet

Shoebox Heat Pump Manual (Slinkies) Version 4
Page 4 of 42
1. Introduction—a message from the Managing Director
Kensa Heat Pumps has been manufacturing ground source heat pumps since
1999. In the early days, it was difficult to find contractors willing to consider the
technology. As a consequence, Kensa made considerable efforts to simplify the
installation process to allow any competent plumber to perform the work. The
company is now reaping its rewards as heat pumps become mainstream heating
appliances.
The purpose of this manual is to guide you through the installation process. It is
expected that all the required information has been provided to allow you to connect the heat pump.
Critical instructions, aimed at ensuring you do not experience any difficulties, are highlighted on the
‘Golden Rules’ in the installation section.
Please note you will need to speak to the Technical Support Team on 01392 367080 to receive the ‘online
commissioning’ service, offered free-of-charge. Opening hours are 8.00am to 5.00pm .
Finally, please feel free to contact Kensa should you have any questions, 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 information on
ground source heat pumps and
their application, please refer to
www.kensaheatpumps.com
Safety
information
General product
information
Installation Installation
schematics
Installation
mechanical
Installation
electrical
Commissioning Fault Finding Warranty Heat Pump
settings sheet
Introduction

Shoebox Heat Pump Manual (Slinkies) Version 4
Page 5 of 42
2. Safety information
Safe operation of this unit can only be guaranteed if it is properly installed and commissioned in
compliance with the manufacturer’s requirements. General installation and safety instructions for pipeline
and plant construction, 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 Installation
and Commissioning Instructions, could damage the product, will invalidate the warranty, and may cause
injury or fatality to personnel.
2.1 Access
Ensure safe access before attempting to work on the product. Arrange suitable lifting gear if required.
2.2 Lighting
Ensure adequate lighting, particularly where detailed or intricate work is required.
2.3 Tools and consumables
Before starting 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. Lifting, pushing, pulling,
carrying or supporting a load by bodily force can cause injury particularly 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
installation.
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 offer a life time decommissioning service for this product. This is available on a return to base basis
(carriage at users’ cost).
Disposal of any antifreeze water mix should follow the disposal instructions as laid out on the COSH Safety
Data Sheet available on request.
Warranty Fault Finding Commissioning Installation
electrical
Installation
mechanical
Installation
schematics
Installation General product
information
Safety
information
Introduction
Heat Pump
settings sheet