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Summary of Contents for Mixergy MDC0008-02
- Page 1 Installation and commissioning instructions MDC0008-02 For Mixergy heat exchanger modules PLEASE LEAVE WITH HOUSEHOLDER Failure to install and maintain this system in accordance with these instructions will invalidate the manufacturer’s warranty. V15 11/08/21...
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Page 2: About This Module
About this module The Mixergy heat pump exchanger module is designed to allow for integration of any Mixergy cylinder with both low and high temperature heat pumps. This module incorporates a high surface area plate heat exchanger and circulator pump to enable high performance heat transfer between the heat pump and cylinder. -
Page 3: Table Of Contents
Contents About this module Technical data Contents Included items Exchanger performance graphs Installation: hydraulic Installation: remote mounting Hydraulic schematics Installation: mechanical Installation: electrical Installation: commissioning Troubleshooting Draining the cylinder Replacement parts... -
Page 4: Included Items
Included items • Heat exchanger module complete with pipework, fittings (MAS0137, MAS0138, MAS0139), exchanger, AAV and pump • 2x 22mm compression nuts and olives • 2x 22mm isolator valves and pipe stubs • Installation guide • Insulating jacket for exchanger •... -
Page 6: Installation: Hydraulic
Installation: hydraulic 1. Drain hot water system if it is currently filled, refer to the back of this booklet for specific guidance on draining the hot water cylinder. 2. Remove blanking caps from cylinder heat exchanger ports, replace with included compression nuts and olives. pre-drilled mounting holes position 1... - Page 7 Installation: hydraulic 3. Assemble and orient the exchanger as pictured. 4. (OPTIONAL) Fit 22mm isolators to the heat exchanger ports using supplied pipe stubs. 5. Push the assembly onto the cylinder. IT IS RECOMMENDED TO FIT THE SUPPLIED 22mm ISOLATOR VALVES BETWEEN THE EXCHANGER ASSEMBLY AND THE HEAT EXCHANGER PORTS WHEN POSSIBLE FOR EASE OF SERVICE MAS0137...
- Page 8 Installation: hydraulic 6. Align exchanger assembly and tighten compression fittings. Ensure all fittings on the cylinder are tight before filling. 7. Plumb the primary circuit flow and return as pictured. 8. Refill the system with water, ensure the air vent cap is loosened to allow the system to be purged of air during filling.
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Page 9: Installation: Remote Mounting
Installation: remote mounting For 120L units and in some cases where limited space or pre-existing pipework obstruct the normal mounting position of the exchanger assembly, it may be required to mount the assembly a small distance away from the cylinder. In this situation, please follow the guidance below: •... -
Page 10: Hydraulic Schematics
Hydraulic schematics... -
Page 12: Installation: Mechanical
Installation: mechanical 1. Remove the front cover of the HP interface. 2. Mount the PV switch either to the side wall of the cylinder (using the included self-tapping screws at either position 1 or 2 as shown on page 6) or to a nearby wall (using the included plastic spacers and screws). -
Page 13: Installation: Electrical
Please note that in this mode of operation, all scheduling and control features of the Mixergy app will be disabled and the cylinder will only function as an observational/diagnostic tool. Any scheduling and... - Page 14 DHW sensor terminals via a length of 2-core cable. Conductor orientation does not matter. If the heat pump sensor interface has more than 2 terminals, please contact Mixergy directly for further guidance. Full schematics for this installation can be found on page 16.
- Page 15 Installation: electrical Alternate installation (Modified S-PLAN) For heat pumps with a dedicated DHW ON switched live input or a configurable high temperature (HT) zone switched live input, the recommended installation is as follows: 1. Connect cylinder indirect control cable GREEN/YELLOW to HP interface INDIRECT E.
- Page 16 Installation: electrical (DHW Sensor)
- Page 17 Installation: electrical (Modified S-Plan)
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Page 18: Installation: Commissioning
These can be reinstated once the 0-100% reheat time has been observed. 4. Set the Mixergy cylinder default heat source into heat pump mode. This can be done in the web/phone app or directly on the cylinder gauge by holding both the boost up and down buttons and releasing once the display lights blue. -
Page 19: Troubleshooting
If the former is suspected, please ensure that the heat pump controller’s DHW generation is unscheduled. If the latter is suspected, double check the wiring. If a solution cannot be found, please contact Mixergy directly. - Page 20 Please note that a set temperature of less than 50 C is not permitted for sanitary reasons. Other issues If any other issues are suspected, please contact Mixergy directly for further support.
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Page 21: Draining The Cylinder
4. Open drain to start draining the cylinder. Replacement parts Do not attempt to repair or replace any parts of the Mixergy cylinder unless you are a trained operative. If you suspect a fault or a replacement part is needed, please contact Mixergy directly. - Page 22 01865 884 343 Mixergy Ltd, 2 Canal View, Wharf Farm, Eynsham Road, Cassington, Oxfordshire OX29 4DB T: 01865 884 343 | www.mixergy.co.uk MIXERGY INSTALLATION AND COMMISSIONING GUIDE MDC0008-02...
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