Kensa Heat Pumps Shoebox Installation Manual
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Also See for Shoebox:
- User manual (20 pages) ,
- Installation and commissioning manual (42 pages) ,
- Installation, commissioning and user manual (42 pages)
Related Manuals for Kensa Heat Pumps Shoebox
Summary of Contents for Kensa Heat Pumps Shoebox
- Page 1 Shoebox Heat Pump Installation Manual Copyright ©2021 Kensa Heat Pumps Ltd Shoebox Heat Pump Manual Version 9.4 Page 1 of 40...
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Page 2: Table Of Contents
2.7......Disposal/decommissioning ..................5 3....... General product information ............6 3.1......Equipment delivery and handling ................6 3.2......Kensa Shoebox 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...... - Page 3 8.1.4......General exceptions ....................36 8.1.5......Care of Duty ......................37 8.1.6......In the event of Damage ..................37 8.1.7......Replacement Parts....................37 9....... Heat pump settings sheet ............. 38 Shoebox Heat Pump Manual Version 9.4 Page 3 of 40...
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Page 4: Introduction
1. Introduction—a message from the CEO 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. -
Page 5: Safety Information
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. Shoebox Heat Pump Manual Version 9.4 Page 5 of 40... -
Page 6: General Product Information
This manual explains how to install and commission a Kensa ‘Shoebox’ ground source heat pump. The Kensa ’shoebox’ heat pump is designed to provide a low cost renewable heat source for a buildings heating system. It is ideally suited to multi flat developments using a communal ground borehole field. In addition, and if required, the Kensa Shoebox can also provide domestic hot water. -
Page 7: Kensa Shoebox Technical Data
Shoebox Heat Pump Manual Version 9.4 Page 7 of 40... -
Page 8: Installation
IEE regulations. Any plumbing work should be carried out to local water authority and WRC regulations. 4.1 The Golden Rules of Installing a Shoebox Heat Pump Connect the heat pump using only plastic pipe or flexible piping. -
Page 9: Underfloor With A Single Manifold. Space Heating Only
Fig 2 Heat Pump with Under- floor and a Single Manifold Schematic 4.2.2 Underfloor with multiple manifolds. Space heating only Fig 3 Heat Pump with Underfloor and Multiple Manifolds Schematic Shoebox Heat Pump Manual Version 9.4 Page 9 of 40... -
Page 10: Radiators. Space Heating Only
DHW mode until 2 hours has passed. Please contact Kensa if this time period needs to be adjusted . The maximum DHW temperature that the heat pump can achieve will be approximately 60 Shoebox Heat Pump Manual Version 9.4 Page 10 of 40... -
Page 11: Type Of Dhw Tank
It is also possible to use trace heating tape, this removes the additional cost of installation of the secondary return and water pump and the associated running costs of this equipment. Shoebox Heat Pump Manual Version 9.4 Page 11 of 40... - Page 12 Fig 6 Underfloor with a single manifold and DHW Schematic Fig 7 Underfloor with multiple manifolds and DHW Schematic Note: Additional circulation pumps with multiple manifolds depends on the system design. Shoebox Heat Pump Manual Version 9.4 Page 12 of 40...
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Page 13: Buffer Vessel Installation
The above schematic shows how a buffer vessel can be incorporated into the shoebox installation without the need of a second water pump. The buffer vessel allows all radiators or underfloor zones to be fully controlled and prevents the shoebox from short cycling, hence removing the need for ‘open’ zones. -
Page 14: Mechanical Installation
Position the appliance on a firm, level and substantial concrete base that will absorb vibration well away from any occupied rooms. Ensure that the appliance does not stand on the electrical supply cable. If the supply cable is damaged, it must be replaced. Ensure that the shoebox is accessible in case access is required. -
Page 15: Installation Of The Heat Pump
Any pipes internal to the building must be insulated with vapour barrier insulation such as Armaflex. Remove the top of the shoebox heat pump. This is connected via magnets so a short sharp pull of the top forward and up will release this. - Page 16 Fig 13 Shoebox with flexi connections vii. Thread the timeclock/room thermostat wires into the back of the ’Shoebox’ and connect them to the terminals required, ( see electrical installation section ). viii. For applications where Domestic Hot Water has been specified a 3 port diverting valve (‘W’ plan) is provided by Kensa and when the timeclock calls for DHW production is used to divert the flow from space heating to an indirect coil in the DHW tank, (See DHW schematic, Section 4.4).
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Page 17: Meter Installation
Metering and Monitoring Service Packages- A Customer may install an optional metering and monitoring service package for either a pellet biomass boiler or a heat pump for which they will Shoebox Heat Pump Manual Version 9.4 Page 17 of 40... - Page 18 This should be no more than 2 m from the flow meter. 2. Install low pressure-drop isolation valves to avoid the need to drain systems when fitting heat meters; Shoebox Heat Pump Manual Version 9.4 Page 18 of 40...
- Page 19 Therefore, at the same time as installing isolation valves for the heat meters, installers should consider the placement of an easily-accessible electricity supply to power the heat meters. Shoebox Heat Pump Manual Version 9.4 Page 19 of 40...
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Page 20: Electrical Installation
4.7 Electrical Installation The Kensa ’Shoebox’ heat pump range is available in single phase power supply versions and the single compressor is fitted with a fly lead. Any electrical work required to install or maintain this appliance should be carried out by a suitably... -
Page 21: Wiring Diagrams
4.7.1.1 Main Power Supply 230 Vac 50Hz power supply is via a fitted fly lead and should be connected to a suitable isolator. The following sections detail the wiring connections for various applications. Shoebox Heat Pump Manual Version 9.4 Page 21 of 40... - Page 22 Fig 19 3kW Din Rail Units Connection terminals for Fuse Holder load side water pump Neutral, Live and Earth DHW timer 4 Amp MCB Electrical meter Shoebox Heat Pump Manual Version 9.4 Page 22 of 40...
- Page 23 Fig 20 6kW Din Rail Units Connection terminals for load side water pump Neutral, Live and Earth Fuse Holders DHW timers Electrical meter 4 Amp Shoebox Heat Pump Manual Version 9.4 Page 23 of 40...
- Page 24 This should be removed after commissioning and connection to the heating control Heat Pump Enable Signal No Call 0-50V DO8 and DO9 must use an external power supply and relay. Call >120V 50V < Call voltages < 120V are not permitted Shoebox Heat Pump Manual Version 9.4 Page 24 of 40...
- Page 25 / specified for cooling applications. Simultaneous calls for heating and cooling will result in the unit returning an error code. Cooling applications can also affect eligibility for grant schemes. Shoebox Heat Pump Manual Version 9.4 Page 25 of 40...
- Page 26 Note :- DI4, DO6, DO8, DO9, DI7,DI9 and T9 are all optional. DI3 is only for use with cooling models DI2, DO5 and DO5a only for use with DHW enabled models. Shoebox Heat Pump Manual Version 9.4 Page 26 of 40...
- Page 27 2.5A Shoebox Heat Pump Manual Version 9.4 Page 27 of 40...
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Page 28: Weather Compensation
4.7.2 Weather Compensation. All Kensa Shoebox Heat Pumps are supplied with Weather Compensation as standard. This facility will re- duce the return water set-point against a schedule of external ambient temperatures. In more simple terms, the temperature of water flowing into the building’s radiators or underfloor heating is reduced in mild weather, which allows the heat pump to run more efficiently. -
Page 29: Communal Ground Array
Shared Ground Array. The Shared Ground Array system features a communal ground array linked to individual ground source heat pumps installed within each dwelling. It is ideally suited for the shoebox heat pump and for multiple properties within one building such as apartments. - Page 30 The shoebox heat pump contains an integral source water pump which draws the thermal transfer fluid from the communal ground array. Due to this no central pumping station is required on the system. It is important however that a pressurisation and expansion set is fitted to the ground array to ensure that as air is removed from the system the fluid content and pressure is maintained.
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Page 31: Mechanical Set To Run
6.1.3 Heating distribution and load side purging Find the cold fill for the heating system and open the valve on the heating system to allow water into the heating system and the Shoebox. Ensure a load side water pump is fitted and operational. -
Page 32: Turning The Heat Pump On For The First Time
Do not try to spin the impellor with the power on. Fig 27 Spinning the pump Disconnect the fuse to the compressor (as shown on Fig 14) Turn the Shoebox on to enable the controls and water pumps to operate. DO NOT operate the compressor fuse until Kensa Heat Pumps has been contacted and flow has been confirmed around the system. -
Page 33: Commissioning The Shoebox
The unit can be commissioned by using an application downloaded using the link or QR code below. The app is designed to be used on any android device and will allow the device to connect with the shoebox via the Wi-Fi button. -
Page 34: Linking The Heat Pump To An Existing Wi-Fi Network
6.3.2 Linking the heat pump to an existing Wi-Fi network. It is possible to link the shoebox to an existing Wi-Fi network enabling remote diagnostics with Kensa. The shoebox will periodically upload performance data to a Kensa server allowing Kensa to interrogate any issues. -
Page 35: Fault Finding
Technical Support Department. Error may occur if compressor is over heating - accompanied with DHT2: High Discharge HP2. Evaporating temperature might be too high. Refer to Kensa Temp Technical Support Department. Shoebox Heat Pump Manual Version 9.4 Page 35 of 40... -
Page 36: Warranty
Kensa Heat Pumps Ltd will, at its option and without charge to the Buyer, replace or repair any Parts which cause the Kensa Compact Ground Source Heat Pump to be inoperable; however, if Kensa Heat... -
Page 37: Care Of Duty
8.1.7 Replacement Parts Kensa Heat Pumps Ltd’s warranty obligations with respect to replacement parts are identical to those with respect to original parts; provided, however, in no event shall the warranty term for such replacement parts extend beyond the term established by the commencement date (i.e. -
Page 38: Heat Pump Settings Sheet
T2 / T3 Load Flow Temperature T4 Ground Return Temperature T5 / T6 Ground Flow Temperature T7 / T8 Discharge Pipe Temperature T9 Weather Compensation Set point Weather Compensation Multiplier Weather Compensation Maxi Variation Shoebox Heat Pump Manual Version 9.4 Page 38 of 40... - Page 39 Enabled / Disabled Duration / Run Time After DHW Pasteurisation Enabled / Disabled Duration Frequency Supplementary Heat Supplementary Heat Enabled / Disabled Cut in Frequency Cut in Differential Cut Out Differential Shoebox Heat Pump Manual Version 9.4 Page 39 of 40...
- Page 40 Enabled / Disabled Antifreeze Concentration Load Side Heat Pump Left In Good Working Order Demonstration and Handover of Heat Pump Completed Client Sign Off Date :- Comments: Installed by:- Date:- Tel:- Shoebox Heat Pump Manual Version 9.4 Page 40 of 40...
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Questions and answers
Hi-my kensa heat pump(rented accommodation), is not working well-the pressure keeps going down frequently (about every month at least) usually it just stops the heating, however i now have no hot water aswel! The white light is on above the tap icon, warning light was on-but i put the pressure up and this has stopped flashing-but still no hot water or heating! I have tried to connect to the app/wifi to see what is going on but i cant connect! I have also tried turning it on/off.