Table of Contents
Advertisement
Installation and servicing instructions
For stainless steel hot water cylinders
Please leave with householder
Failure to install and maintain this system in accordance with
these instructions will invalidate the manufacturer's warranty.
®
Mixergy Ltd
2 Canal View
Wharf Farm
Cassington
Oxfordshire
OX29 4DB
V8 28/02/19
Advertisement
Table of Contents
Related Manuals for Mixergy M0008
Summary of Contents for Mixergy M0008
- Page 1 ® Installation and servicing instructions For stainless steel hot water cylinders Mixergy Ltd 2 Canal View Wharf Farm Cassington Oxfordshire Please leave with householder OX29 4DB Failure to install and maintain this system in accordance with V8 28/02/19 these instructions will invalidate the manufacturer’s warranty.
-
Page 2: Cylinder Details
Your cylinder MX number can be found on the label placed on the front of the cylin- der. For all queries, please contact us: Tel: 01865 884343 E-Mail: enquiries@mixergy.co.uk Technical data 1 MPa (10 bar) Max. supply pressure to pressure reducing valve Operating pressure 0.3 MPa (3 bar) -
Page 3: Table Of Contents
Contents Cylinder details Technical data Contents About your system Additional components Model sizes and weights Design notes Schematic: Direct Schematic: Indirect Installation: general guidelines Installation: electrical Installation: connectivity Discharge pipework Commissioning Commissioning checklist Problem solving Draining the cylinder Servicing Service record Replacement parts... -
Page 4: About Your System
About your cylinder The Mixergy cylinder is a hot water storage cylinder which uses thermal stratification. This system works by heating water at the top of the cylinder first and then diffusing cold water from the bot- tom of the cylinder into this hot portion during heating. -
Page 5: Additional Components
Additional components • Monobloc kit incl. pressure reducing valve, check valve, pres- sure and temperature relief valve and expansion relief valve • Tundish • Expansion vessel incl. mounting bracket and flexible hose • 3 kW immersion heater(s) 1.3/4” BSP (fitted) •... -
Page 6: Design Notes
Design notes The Mixergy cylinder is currently available in two basic variations: • Mixergy Direct - Provides hot water heated by electricity and is designed primarily for use with off peak electricity. • Mixergy Indirect - Provides hot water either by electricity or an internal primary coil which is designed for use with electric, gas or oil fired boilers. -
Page 7: Schematic: Direct
Schematic: Direct Hot draw off Primary immersion Cold feed P&T relief valve Controller Tundish and discharge pipe Cold water control group Pump assembly Expansion vessel Backup immersion (if fitted) Expansion relief valve... -
Page 8: Schematic: Indirect
Schematic: Indirect Hot draw off Indirect coil ports Cold feed P&T relief valve Controller High limit safety stat Cold water control group Indirect junction box Expansion vessel Tundish and discharge pipe Expansion relief valve Pump assembly Primary immersion Backup immersion (if fitted) -
Page 9: Installation: General Guidelines
Installation: general guidelines In the case of an unvented installation, install of this product should only be carried out by a “competent operative” i.e. the installer must have attended a recognised course in unvented hot water systems or received appropriate training in their apprenticeship. All registered operatives should carry an Identifi- cation Card issued by the institute of Unvented Hot Water Systems. -
Page 10: Cold Water Control Group
Installation: general guidelines Unvented installations In the case of an unvented installation, installers should ensure incoming mains pressure is less than 1 MPa (10 bar) and that local authority approval for installation of unvented systems is granted. Ensure adequate flow rate is available. Use of flux and sterilisation Excessive use of flux can damage the unit and especially the valves and expansion vessel (if supplied). -
Page 11: Controller
Installation: general guidelines Positioning the tundish The tundish, which shows visible discharge from the relief valves, is to be in a prominent, visible and safe position away from any elec- trical devices. See discharge and safety devices on page 16. Checking the P&T relief valve The pressure and temperature relief valve is set at 7 bar and 90°C and is factory fitted and sealed prior to dispatch. -
Page 12: Installation: Electrical
OUT BY COMPETENT ELECTRICIAN AND BE IN AC- CODRANCE WITH THE LATEST I.E.E. REGULATIONS. External wiring Mixergy cylinders come supplied with cable included. The pur- pose and installation requirements for each cable are given below. Layout of the internal junctions within the controller are also given should replacement cables be required. - Page 13 Installation: electrical Indirect wiring Mixergy indirect cylinders can be wired into both S-plan and Y-plan heating configurations. Please use the following instruc- tions for reference. These instructions are only for the wiring of the cylin- der and cannot be used as a reference for a complete central heating system.
- Page 14 Installation: electrical These wiring diagrams only serve as examples, the specific cable used should suit the installation. Wiring diagram with 2 port Wiring diagram with 3 port mid position zone valve (S-PLAN) valve and 2 port zone valve (Y-PLAN)
- Page 17 Installation: electrical External controller wiring Mixergy systems can be connected to an external controller using the sense cable as follows: • Connect the brown (L) cable to the external controller ‘DHW ON’ junction. • Connect the blue (N) cable to neutral.
-
Page 18: Primary Immersion
Installation: electrical PV diverters If your Mixergy cylinder is equipped for use with a PV diverter, a dual immersion will be fitted to replace the primary immersion shown in the schematics on page 7 and 8. This immersion will come factory wired into the Mixergy system with an additonal 3-core (L+N+E) cable labelled ‘solar feed’... -
Page 19: Installation: Connectivity
Installation: connectivity Installing the powerline adapter The Mixergy cylinder requires internet connectivity to allow for full control of the system. Connection to the cylinder can be made us- ing the provided ethernet to powerline adapter or the cylinder can be paired with an existing HomePlug AV network if available. -
Page 20: Discharge Pipework
Discharge pipework Discharge pipes from safety devices • Safety devices such as temperature relief valves or combined temperature and pressure relief valves should discharge either directly or by way of a manifold via a short length of metal pipe (D1) to a tundish. •... - Page 21 Discharge pipework Typical discharge pipe arrangement Sizing of copper discharge pipe ‘D2’ for common temperature relief valve outlet sizes Resistance creat- Minimum size of dis- Maximum resistance Minimum size of Valve outlet size ed by each elbow charge pipe D2 from allowed, expressed as a discharge pipe D1 length of straight pipe...
- Page 22 Discharge pipework Discharge pipe D2 • The discharge pipe (D2) from the tundish should have a verti- cal section of pipe at least 300mm long below the tundish be- fore any elbows or bends in the pipework. It should be installed with a continuous fall of at least 1 in 200.
- Page 23 Discharge pipework • The discharge pipe should not be connected to a soil discharge stack unless it can be demonstrated that the soil discharge stack is capable of safely withstanding the temperatures of the water discharged, in which case, it should contain a mechani- cal seal, not incorporating a water trap, which allows water into the branch pipe without allowing foul air from the drain to be ventilated through the tundish.
- Page 24 Discharge pipework Termination of discharge pipe The discharge pipe (D2) from the tundish should terminate in a safe place where there is no risk to persons in the vicinity of the discharge. Examples of acceptable discharge arrangements are: To a trapped gully with the end of the pipe below a fixed grating and above the water seal.
-
Page 25: Commissioning
5. Switch on the Mixergy cylinder and check for correct operation. Mixergy cylinder come supplied in ‘eco mode’ which is de- signed to satisfy the minimum charge requirements of BS EN 50440:2015 M draw profile. - Page 26 Commissioning Pairing the cylinder and connecting to the internet In the case that the cylinder does not automatically pair to the powerline adapter or connection to an existing homeplug AV net- work is desired, please follow the steps below to pair the cylinder to the network.
-
Page 27: Commissioning Checklist
Commissioning checklist This Commissioning Checklist is to be completed in full by the competent person who commissioned the cylinder as a means of demonstrating compliance with the appropriate Building Regu- lations. Failure to install and commission this equipment to the manufacturer’s instructions may invalidate the warranty but does not affect statutory rights. - Page 28 Commissioning checklist Cylinder primary settings Is the circuit sealed or vented? Set system pressure Unvented cylinders only Has a P&T relief valve and expansion relief valve been fitted and discharge tested? Is a cut-out device fitted? Pressure reducing valve setting Has the expansion vessel been checked? Final checks The cylinder complies with the appropriate building regulations...
-
Page 29: Problem Solving
Overheated water In the unlikely event of overheated (95°C) water being discharged, the Mixergy controller should be switched off immediately and a competent engineer called out. Please contact Mixergy directly. Do not shut off the cold water supply to the unit. - Page 30 If the immersion heater is not heating the water adequately it has either failed (in which case a replacement immersion heater as supplied by Mixergy should be fitted), an electrical fault is present or the electrical cut-out has operated due to the control thermo- stat being set too high or being faulty.
-
Page 31: Draining The Cylinder
- ensure appropriate check valves are fitted. The pressure reducing valve, one of the relief valves, or the expansion vessel may have failed. The component should be identified and replaced by one supplied by Mixergy Ltd. -
Page 32: Servicing
Servicing ANNUAL MAINTENANCE should be performed by a competent operative. Failure to maintain this system in accordance with these instruc- tions will invalidate the manufacturer’s warranty. A maintenance record should be kept on the service record on page 33 of this booklet. -
Page 33: Service Record
Service record Service date Serviced by Comments... -
Page 34: Replacement Parts
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. To determine the correct parts for your system, please ensure you have your cylinder MX number which can be found on the name- plate located at the front of the cylinder.
Need help?
Do you have a question about the M0008 and is the answer not in the manual?
Questions and answers