Mixergy M0008 Guía del usuario
Installation and servicing instructions
For stainless steel hot water cylinders
Failure to install and maintain this system in accordance with
these instructions will invalidate the manufacturer’s warranty.
Please leave with householder
Mixergy Ltd
2 Canal View
Wharf Farm
Cassington
Oxfordshire
OX29 4DB
V8 28/02/19
®
2
Cylinder details
Technical data
MX number
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
Max. supply pressure to pressure reducing valve 1 MPa (10 bar)
Operating pressure 0.3 MPa (3 bar)
Expansion vessel charge pressure 0.3 MPa (3 bar)
Expansion relief valve setting 0.6 MPa (6 bar)
P&T relief valve setting (pressure) 0.7 MPa (7 bar)
P&T relief valve setting (temperature) 90 °C
Adjustable temperature range (digital) 50 - 65 °C
Coil max. working pressure (indirect) 0.35 MPa (3.5 bar)
Immersion heater(s) rating 230-240 V~ 2.7-3.0 kW
Immersion heater(s) specification EN 60335-2-73
Immersion heater(s) type 356 mm Incoloy
Thermostat cut-out temperature 80 °C
3
Cylinder details 2
Technical data 2
Contents 3
About your system 4
Additional components 5
Model sizes and weights 5
Design notes 6
Schematic: Direct 7
Schematic: Indirect 8
Installation: general guidelines 9
Installation: electrical 12
Installation: connectivity 19
Discharge pipework 20
Commissioning 25
Commissioning checklist 27
Problem solving 29
Draining the cylinder 31
Servicing 32
Service record 33
Replacement parts 34
Contents
4
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.
This ‘top-up’ technology allows the Mixergy cylinder to selectively
heat (or ‘charge’) the water, improving reheat performance, reduc-
ing heat losses and improving available renewable capacity.
For more information on how your cylinder works and how to get
the most out of your system, please refer to the user guide.
15 ˚C
55 ˚C
15 ˚C
55 ˚C
5
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)
• High limit thermostat (indirect only, fitted)
• 2-port diverter valve V4043H1056 (indirect only)
• Powerline to ethernet adapter TL-PA4010
• Ethernet cable
• User guide
• Warranty statement
Model sizes and weights
Cylinder
capacity (L) 120 150 180 210 300
Nominal
dia. (mm) 475 545 475 545 475 545 475 545 475 545
Cylinder
height
(mm)
1255 990 1520 1190 1800 1370 1980 1560 -- 2130
Empty weights (kg)*
Direct 27 27 34 34 39 39 42 42 -- 56
Indirect
(single coil) 31 31 39 39 43 43 46 46 -- 61
Indirect
(dual coil) -- -- -- 41 -- 46 -- 49 -- 64
Full weights (kg)*
Direct 147 147 184 184 219 219 252 252 -- 356
Indirect
(single coil) 151 151 189 189 223 223 256 256 -- 361
Indirect
(dual coil) -- -- -- 191 -- 226 -- 259 -- 364
*For systems with external heat exchangers fitted, add 2 kg to the
cylinder weight.
6
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.
In addition, Mixergy cylinders can be fitted with the following op-
tions:
• External heat exchanger for use with electric, gas or oil fired
boilers and heat pump systems.
• Dual primary element for use with a PV diverter.
The unit should be handled with care in order to avoid damage. It
should be stored upright in a dry place.
Unvented hot water cylinders must not be used with
solid fuel boilers as the energy source.
All models are factory fitted / supplied with immer-
sion heaters that have built-in thermal cut-outs. Im-
mersion heaters without thermal cut-outs must not
be fitted.
All unvented installations must be fitted with a pres-
sure reducing valve (supplied) and P&T relief valve
(fitted). These must not be removed or used for any
other purposes than what they are designed for.
7
Schematic: Direct
1Hot 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
2
3
4
5
6
7
8
9
10
11
12
3
5
4
6
9
11
10
7
8
8
Schematic: Indirect
1Hot 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)
2
3
4
5
6
7
8
9
10
11
12
13
14
12
3
5
4
6
12
14
13
7
9
8
10
11
9
Installation: general guidelines
The installation area should be able to cope with the weight, in-
coming pipes and discharge pipe when full. Full weights are listed
on page 5 of this booklet.
Positioning of the cylinder
Position of the cylinder should suit the installation; all connections
should be to the front for ease of access. Ensure suitable space is
left for access for repair and/or replacement of immersions and
valves etc. Ensure atleast 300mm of vertical clearance above the
cylinder. Refer to page 5 for cylinder heights and the diagram
below for guidelines on space requirements:
Nominal di-
ameter nD
(mm)
Space re-
quirement S
(mm)
475 610
565 700
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.
610 850
S
S
nD
10
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). Avoid over-use and ensure the
system is fully flushed of any debris or flux after connection. If a full
sterilisation of all the pipework including the cylinder is required
then a complete drain down and flush of the unit is essential. A
simple flush through with water is not adequate in removing all
sterilising solution within the cylinder. Under no circumstances
should sterilising solution be left in the cylinder any longer than re-
quired (seek dosage requirements from chemical manufacturer).
Pipework and cold water control group
The unit should be piped in with a nominal 22mm pipe to ensure
adequate flow rate. The unit is supplied with a monobloc pressure
reducing valve that has a set pressure of 3.0 bar. The valve also
consists of a serviceable strainer, non return valve, expansion relief
valve, connection for an expansion vessel and balanced cold feed
supply. We would strongly recommend fitting an isolating valve
(not supplied) prior to the monobloc valve for ease of maintenance
at a later date. Under no circumstances should an insolating valve
be fitted between the expansion valve and the storage cylinder.
Fitting a drain valve
Please ensure that a drain valve is fitted to the lowest part of the
unit, The drain valve must be fitted as low as possible so that at
least 80% of the cylinder’s total capacity can be drained off.
Connecting the hot draw
It is recommended that a 90° elbow be fitted within 100 mm of
the hot draw to minimize heat losses due to thermosiphoning.
Este manual sirve para los siguientes modelos
1
Tabla de contenidos
Otros manuales de Calentador de agua de Mixergy
