Mixergy 90 Guida utente
Installation and servicing instructions MDC0001
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
V14 07/04/21
®
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
Contents
Cylinder details 2
Technical data 2
Contents 3
About your cylinder 4
Additional components 5
Model specifications 5
Model specifications 6
Design notes 7
Schematic: Direct 8
Schematic: Indirect/Lite 9
Schematic: Heat pump 10
Installation: general guidelines 12
Installation: electrical 15
Installation: connectivity 22
Discharge pipework 23
Commissioning 28
Commissioning checklist 31
Problem solving 33
Draining the cylinder 35
Replacement parts 35
Servicing 36
Service record 37
4
About your cylinder
The Mixergy cylinder is a hot water storage cylinder which uses
thermal stratification on charge (direct and indirect) and dis-
charge (direct, indirect, lite and heat pump).
This stratification technology allows the Mixergy cylinder to par-
tially heat (or ‘charge’) the water, reducing heat losses, improving
available renewable capacity and allowing for exploitation of smart
tariffs.
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 3/4” x 22mm
adapters
• 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
Model specifications
*For heat pump systems with external heat exchangers fitted, add
2 kg to the cylinder weight.
Cylinder
model 90 120 150 180 210 300
Nominal
dia. (mm) 478 478 580 478 580 478 580 478 580 580
Cylinder
height
(mm)
1141 1329 1050 1517 1236 1767 1418 2081 1608 2125
Empty weights (kg)*
Direct 23 28 32 35 37 38 42 40 47 57
Indirect /
Lite -- 32 37 40 42 44 47 47 52 62
Full weights (kg)*
Direct 113 148 162 185 187 218 217 250 262 362
Indirect /
Lite -- 152 167 190 192 224 222 257 267 367
6
Model specifications
Cylinder
model 90 120 150 180 210 300
Nominal dia.
(mm) 478 478 580 478 580 478 580 478 580 580
Minimum
reheat time
(15 to 65 °C) -
Direct
30 min 30
min
44
min
30
min
44
min
30
min
44
min
30
min
44
min 44 min
Minimum
reheat time
(15 to 65 °C) -
Indirect
12 min
70% charge
reheat time
(15 to 65 °C) -
Direct
73 min 98 min 123 min 147 min 172 min 245 min
70% charge
reheat time
(15 to 65 °C) -
Ind / Lite
-- 14 min 17 min 21 min 23 min 31 min
70% charge
reheat time
(15 to 65 °C)
- HP
4 min 6 min 7 min 9 min 10 min 14 min
100% charge
reheat time
(15 to 65 °C) -
Direct
105 min 140 min 176 min 210 min 246 min 350 min
100% charge
reheat time
(15 to 65 °C) -
Ind / Lite
-- 20 min 25 min 30 min 33 min 45 min
100% charge
reheat time
(15 to 65 °C)
- HP
6 min 9 min 11 min 13 min 15 min 21 min
Lite and heat pump variants do not stratify on charge and
thus only produce useful hot water when charging to a
minimum of 70%
7
Design notes
The Mixergy cylinder is currently available in four basic variations:
• Mixergy Direct - Provides hot water heated by electricity and is
designed primarily for use with off peak electricity.
• Mixergy Indirect / Lite - Provides hot water either by electricity
or an internal primary coil which is designed for use with elec-
tric, gas or oil fired boilers.
In addition, Mixergy cylinders can be fitted with the following op-
tions:
• Dual primary element for use with a third-party PV diverter.
• Embedded PV diverter.
• Heat pump exchanger module for use with heat pumps.
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.
8
Schematic: Direct
12
1
2
9
8
6
5
4
3
10
12
13
11
1Controller Cold water control monobloc
Cold feed Expansion vessel
Hot draw Heat pump exchanger ports
Primary immersion Tundish and discharge pipe
External probe pocket Pump assembly
P&T valve Cold inlet
-- --
2
3
4
5
6
7
8
9
10
11
12
13
14
9
Schematic: Indirect/Lite
Lite cylinder
variants will
have a lower coil
position and no
pump assembly
or backup
immersion fitted
2
1
9
8
6
7
5
4
3
10
12
13
11
1Controller Cold water control monobloc
Cold feed Expansion vessel
Hot draw Heat pump exchanger ports
Primary immersion Tundish and discharge pipe
External probe pocket Pump assembly
P&T valve Cold inlet
Indirect coil feed/return --
2
3
4
5
6
7
8
9
10
11
12
13
14
7
10
coil or
exchanger
feed
Indirect/external exchanger units
2-port valve*
Indirect feed
Indirect return
Mixergy cylinder
Hot draw
P&T relief valve
Tundish
Discharge pipe
*2-port valve MUST be fitted for
heat sources with flow temperatures
exceeding 65°C
Drain cock
Expansion vessel
Isolating valve
Cold feed
Cold water control monobloc valve
Check
valve
StrainerPressure
reducing valve
Pressure
relief valve
Questo manuale è adatto per i seguenti modelli
5
Indice
