Eco SolaReady
Megaflo Eco SolaReady
Megaflo Eco SolaReady user guide
Installation and Handover
When your Megaflo Eco SolaReady domestic water heating system was installed the installer should have fully
commissioned the system and left it in working order. Following this they should have explained the system, its
function and control including:
Heating by solar
Explained how the cylinder is heated when there is sufficient solar heating gain.
Heating by auxiliary heating source
Explained how the cylinder is heated if additional heat input is required due to insufficient solar gain being
available (little or no sun) or additional quantities of hot water are required.
Operation of the Solar Differential Temperature Controller
Explained the icons and their meanings displayed at the controller.
System Malfunction
Explained what to do in the event of a system fault including how to isolate the electrical supply or water supply.
System Maintenance
Explained the necessity for the system to receive regular maintenance to ensure its continued safe and efficient
operation.
Literature
Handed over all installation, commissioning, service, maintenance and user instructions for the system.
Completed the benchmark logbook for the cylinder. Completed the Commissioning Record (see page 35 of the
Megaflo Eco SolaReady Product Guide) for the solar system.
The following leaflet further explains a number of the above points and should be retained as a reminder of how
to operate the Megaflo Eco SolaReady water heating system. If you are in any doubt, please ask your installer
for clarification.
Identification of
main components
BALANCED COLD WATER
CONNECTION (IF REQ’D)
PUMP STATION
SAFETY GROUP
SOLAR PUMP STATION
SOLAR CONTROL INTERFACE
AUXILIARY PRIMARY RETURN
BLENDING VALVE
STOP COCK
3 BAR PRESSURE
REDUCING VALVE
6 BAR PRESSURE
REDUCING VALVE
T & P VALVE
QUICK RELEASE
CONNECTOR VALVE
SOLAR EXPANSION VESSEL
AUXILIARY PRIMARY FLOW
ELEMENT / CONTROLS
HOUSING
SECONDARY RETURN
TAPPING (IF REQ’D)
TUNDISH
SOLAR CONTROLS HOUSING
SOLAR PRIMARY FLOW
SOLAR PRIMARY RETURN
DRAIN COCK
DHW EXPANSION VESSEL
COLD WATER INLET
DRAIN COCK
DISCHARGE PIPE
2
Cold and hot water supply circuits
Balanced HWS and
MCWS to bathrooms,
showers, cloakrooms,
etc
HWS supply
Blending valve
Factory fitted
8 Bar Pressure Relief
Valve (combined
Expansion Relief
Valve/Check Valve
– factory fitted)
Balanced cold water
draw-off
Temperature/Pressure
Relief Valve
3 Bar Pressure Reducing
Valve incorporating
Pressure Reducing Valve,
Strainer,and Check Valve.
(factory fitted)
SC
Megaflo Eco
SolaReady
DOC DOC
Isolating/Regulating
Valves, as required
DOC
Tundish
SC
Incoming Cold
Water Main
DOC
KEY
MCWS =
HWS =
SC =
DOC =
MCWS to Kitchen
(unbalanced cold
mains supply)
Mains cold water supply
Hot water service
Stop Cock / Isolating Valve
Drain Off Cock
Expansion Vessel
Discharge pipe to atmosphere
(see page 14 “Discharge Pipework”)
Solar and CH primary circuits
Solar collector(s)
Dashed line
denotes Solar
Hydraulic Station
(supplied fitted)
Solar expansion valve
Isolating /
check valves
Motorised valve
(supplied)
Primary
pump
Flexible connector
Solar circulating
pump
Solar expansion
vessel
Air separator
Boiler / auxiliary
heat source
M
Flow meter
S4
Solar discharge
collection vessel
Megaflo Eco
SolaReady
M
CH circuit
3
manual operation
manual operation Temperature differen
5x7 segment display
manual
operation
min basic
Min value
adjustment
manual operation
5x7
segment display
max basic adjustment
Max value
basic adjustment
5x7 segment display
5 x 7 segment displ
basic adjustment
5x7
segment
display
Temperature
measuring
point
col
Presentation
of figures
0000
5x7
segment
display
basic
adjustment
basic adjustment
basic
dT adjustment
by your installer. For the system to operate correctly and
efficiently these settings should not be altered. Section 4
details the user controls which your installer should
familiarise you with during commissioning the system.
System operation
If in doubt contact a qualified solar installation
engineer, alteration of some settings could adversely
effect the operation of the Solarflo system.
ºC
Temperature
in Cels
Temperature
measuring
point
col
5x7
segment
display
Generally the operating settings of your Megaflo Eco SolaReady Domestic hot water heating system will have been
set
up by your
K
Temperature
5x7
segmentdifference
display
Temperature
measuring
point
colin
with any
heating system
theresettings
are certain should
aspects that
installer. For the system to operate correctlyAsand
efficiently
these
not be altered. The following section
details
the
Temperature5x7
measuring
point
sto
segment
display
will require regular checking and/or maintenance.
h
Operating
hours
Temperature measuring
point
col
user controls which your installer should familiarise
you with during commissioning the system.
5x7 point
segment
display
Section 6 details what these should be. Any maintenance
Temperature measuring
collector
Temperature measuring
point stoin
Productivity indication
kWh
segmentpoint
display
or servicing
should only
be carried out
qualified
Temperature
measuring
col
If in doubt contact a qualified solar installation
engineer,
alteration
of by
some
settings could adversely effect the operation
of the5x7
Temperature measuring point sto
personnel and be recorded in the Commissioning
SolaReady system. As with any heating system
there
are
certain
aspects
that
will
require
regular
checking
and/or
maintenance.
Temperature
measuring
point
col
Maintenance and Servicing Guide supplied with the Baxi
collo
Temperature
measuring
point
sto
Graphic symbol
Temperature
measuring
point Description
storage
tank
Solarflo.
Page 7 details what these should be. Any maintenance
or servicing should only be carried out by qualified personnel
and be
Temperature
measuring point
point
col
Temperature
measuring
col
Measur
Temperature measuring
measuring point
point sto
col
recorded in the Maintenance and Servicing sections of the Product Guide supplied with the Megaflo Eco SolaReady. Temperature
Temperature
Temperaturemeasuring
measuringpoint
pointcoll
col
Temperature
measuring
Temperature
measuring
point
sto
Temperature
measuring
point- poin
col
Temperature
measuring
point collector
retu
Temperature
measuring
point
coll
User controls
4.0
Temperature measuring point sto
Temperature
measuring
point
sto
Temperature measuring
measuring point
point coll
sto
Temperature
Temperature
measuring
pointsto
sto
Temperature
measuring
point
sto
Temperature
measuring
point
Antifreeze
sensor
Temperature
measuring
point
storage
tank
Temperature measuring point
point stou
Temperature
Temperature measuring
measuring point coll
sto
Temperature
measuring point coll
Antifreeze sensor
Temperature
measuring
pointsto
co
col
Temperature
measuring
point
Antifreeze
Antifreeze
sensor sensor
Temperature
measuring point col
col
Temperature
measuring
point
Antifreeze
sensor
Temperature
measuring
pointsto
sto
Temperature measuring
point
sto
(thermostat
functio
Antifreeze
sensor
Temperature
measuring point sto
Temperature
measuring
point
sto
Antifreezing
sensor or
universal
Solar pump
circulation
Antifreeze
sensor
Temperature
measuring point sto
measuring point (T3) (no senso
Antifreeze sensor
Solar pumpsensor
circulation
Antifreeze
Solar pump circulation
Antifreeze
Solar
pumpsensor
circulation
S
Antifreeze
sensor
Switch
output
1
Solar
pump
circulation
User controls
The following gives an overview of the Solar Differential Temperature Controller Display and operation.
Fig. 2
The following gives an overview of the Solar Differential
Temperature Controller Display and operation.
1
Description
1
Display with graphic symbols
4.1
Overview of display and operating elements
2 (see Fig. 2).
3
Number
2
3
Number
5
4
Misc icon 1
Control button scroll upwards / +
Description
Control button exit / break-off
1 4
2
Control button scroll upwards / +
3
Control button exit / break-off
5
Display with graphic
symbols
Control
button scroll downwards / Control button choice / confirmation
4
Control button scroll downwards / –
5
Control button choice / confirmation
Solar circulation pum
Switch
1
circulation
SwitchSolar
outputpump
1output
Switch output 1
info
Misc icon 2
Graphic
Description
Solar pump circulation
Switchicon
ouput 211Switch output 1 is ac
Misc
Switch
output
Solar pump
circulation
4.1.1 Explanation of graphic symbols
Solar
Switch Switch
ouputpump
2output
ouputcirculation
21
Indication in operation
Solar pump
circulation
Misc
icon
Indication
in operation
info Miscinfo
Switch
ouputcirculation
2 1Switch output 2 is ac
icon 3 Description
Solar pump
Misc
Misc icon
icon 1
1
Switch
output
1
info Info menu
Misc
icon
1
info
Main Menu
programming
Switch
ouput
System
fault
! SystemMisc
Switch icon
output211
programming
info programming
programming
fault
Switch ouput
output
Reference to system f
Switch
211
Misc iconProgramming
4 Menu "Info"
When symbol flashes it is possible for! it to! be selected.
If that
System
fault
Misc
icon
Misc
2
menu
Misc icon
icon 2
2
info
Misc
icon
2
Switchicon
output 2
1
programming
Misc
symbol
is
chosen
by
pressing
the
button,
the
symbol
remains
manual
operation
Switch ouput
output
System
fault 21
manual operation
operation
manual
! Switch
Manual operation menu
static (not flashing)
Safety
query
Safety
query2for value changes whic
System
fault
ok?
Switch
ouput
Misc icon
icon 3
3
programming
Menu "Programming"
!
Misc
Safety
query
ok?
Misc1 icon 3
Misc icon
Misc
adjustment
info basic
basic
adjustment
Switch icon
ouput 22
manual
operation
When symbol flashes it is possible for it to be
basic
adjustment
System
fault 2
Safety
programming
ok?
Basic adjustment menu
! Misc
selected. If that symbol is chosen by pressing the
Switchquery
ouput
programming
Misc
icon 1 static (not flashing).
r
Switchquery
ouput 22
icon
info
button, the symbol
remains
Misc
icon 4
4
Safety
2
ok?
Menu
"Manual
operation"
Misc
icon
2Misc icon
System fault
Misc2icon 14
manualinfo
operation
2
! Misc
Indicator values
Misc icon 1
icon
info
Safety
programming
ok?
5x7 segment
segment display
Systemquery
fault 2
manual
operation5x7
Misc icon 1
!
5x7 segment display
display
info
Misc
icon
programming
tank lower
System
fault 3
Misc
icon
2
dT info
Temperature
difference
manual
operation
Misc
icon
1
! Safety
programming
query
ok?
Menu "Basic adjustment"
Misc3icon 1
basicbasicadjustment
2
Misc icon
info
System
fault
info
programming
manual
operation
Misc
icon
1
! Up Misc
infooperation
Misc icon 2
Up
min adjustment
Min value
Appears when minimum values are indicated
manual
Systemicon
fault 3
programming
manual operation
!
Misc icon 2
Safety
query
ok?
- return
programming
manual operation
Misc
programming
Misc icon
icon 3
2
Temperature
measuring
collector
max adjustment
Max
valuepoint
Appears when maximum values are indicated
Up query
Temperature
measuring
basic
adjustment
manual
operation
Safety
basic
Temperature
measuring point
point collector
collector
ok?
Misc4icon 2
3
Misc icon
2
Misc
icon 3
basic
adjustment
manual
operation
Safety query
Misc icon
icon 2
3
ok? Misc
5
x
7
segment
display
Up
manual
operation
basic
adjustment
Down
Misc
icon
3
5x7operation
segment display
tank upper
Display of all values, display flashes whenok?
a value
is changed
manual
Safety
query
basic adjustment
basic
adjustment
Temperature
measuring point
point storage
storage
tank lower
lower
Misc
icon 3
Misc
Down
2
Temperature
measuring
tank
Presentation
figures
Misc icon
icon 4
3
Up
Temperature
measuring point of
storage
tank lower00000 to 99999
Safety query
ok? Misc
Misc icon
icon 4
icon
4
3
basic adjustment
Misc
2
Misc
icon
3
basic
adjustment
basic adjustment
5x7 segment display
Misc icon 4
2
ºC basic adjustment
Temperature
in celsius
Down
2
Up
Misc
icon
4
5x7
segmentpoint
display
2
Temperature
measuring
collector
-- return
Temperature
measuring
collector
5x7
segmentpoint
display
Temperature
measuring
point
collector
- return
return in Kelvin
Left Misc
Misc icon 4
Down icon 4
KTemperature
Temperature
difference
2
measuring
point collector
Misc icon 4
5x7 segment
display
2
Up
Misc icon 4
Left
2
5x7
segment
display
Down
2
5x7 segment
display
h
Operating
hours
Up Domestic Hot Water System
Solarflo - Solar Thermal Domestic
Hot5x7
Water
System
Solarflo - Solar Thermal
segment
display
Temperature
measuring
point
storage tank
tank upper
upper
Misc
icon 4
5x7
segment
display
Temperature
measuring
point
collector
storage
Temperature measuring point storage tank upper
Up
Left
Temperature measuring
point storage tank lower
Down
kWh
Productivity
in kWh
Temperature
measuring pointindication
collector
2 RightMisc
Up
5x7
segment
display
icon 4
Temperature measuring
point collector
Left
Up
Temperature
measuring point collector
Antifreeze sensor
sensor
Down
2
Antifreeze
measuring
point storage tank lower
Antifreeze
sensor
MeasuringTemperature
points
assignment
Right
Left
Temperature
measuring
point storage
collector
Temperature
measuring
point
collector
- return
Temperature
point
5x7
display
Down
Temperature measuring
measuring
point segment
collectortank lower
Temperature measuring point storage
collectortank lower
Graphic symbol
info
programming
Misc icon 1
info
manual operation
programming
Misc icon 2
basic adjustment
manual operation
Misc icon 3
basic adjustment
5x7 segment display
2
Misc icon 4
5x7 segment display
Temperature measuring point collector
Temperature measuring point collector Temperature measuring point storage tank lower
Temperature
measuring point collector - return
Temperature measuring point storage tank
lower
Temperature measuring point storage tank upper
Temperature measuring point collector - return
Temperature measuring point collector
Antifreeze
Temperature measuring point storage tank
upper sensor
Temperature measuring point storage tank lower
Antifreeze sensor
Temperature
point storage tank lower
Switch
ouputmeasuring
3
Switch
3
Temperature
point collector - return
Switch ouput
ouputmeasuring
3
Temperature
measuring
point storage
tank lower
Temperature
measuring
point storage
tank upper
Temperature
measuring
point
- return
storage
tank
lower
Temperature
measuring
point collector
storage tank
lower
Temperature measuring point collector
- return
Temperature
measuring point collector - return
Solar
pump
circulation
Temperature
measuring point storage tank upper
Solar
pump
circulation
Solar
pump
circulation
Temperature
Antifreeze
sensor measuring point collector - return
storage tank
upper
Temperature
-- return
Temperature measuring
measuring point
point collector
collector
return
Temperature measuring point collector
- return
storage tank
upper
Temperature
measuring
point
storage
tank
upper
Antifreeze
sensor
Switch
output
1
Switch
output
1
Switch
output
1
measuring
point
storage
tank
upper
SwitchTemperature
ouput
3
Antifreeze sensor
Temperature
measuring point storage tank upper
Antifreeze sensor
Temperature
measuring point storage tank upper
Antifreeze sensor
Switch ouput 3
Switch
ouput
2
Antifreeze
sensor
Switchcirculation
ouput
Solar pump
2
Switch
ouput
32
Antifreeze
sensor
Antifreeze
sensor
Switch ouput
3
Switch ouput 3
Solar
circulation
Switchpump
ouput
3
System
fault
Switch
ouput
3
pump
SwitchSolar
output
1 circulation
System
fault
System
fault
Switch
ouput
3
Solar
pump
circulation
Solar pump circulation
Switch
output
1
Solar pump circulation
Solar
pump
Safety
query
Solar
pump
circulation
ok?
output
1
SwitchSwitch
ouput
2 circulation
Safety
query
ok?
Solar
circulation
Safetypump
query
ok?
Switch
output 1
Switch output 1
Switch
Switch ouput
output21
Switch ouput
Switch
21
System
fault output
Switch
output21
Switch
ouput
Temperature measuring point collector – return
Temperature measuring point storage tank upper
(thermostat function)
Antifreezing sensor or universal temperatures
measuring point (T3) (no sensor monitoring)
Status!! indication
!
ok?
Switch ouput 3
Switch ouput 3
Solar pump circulation
Solar pump circulation
Switch output 1
Switch output 1
Switch ouput 2
Switch ouput 2
!
System fault
ok?
Safety query
!
System fault
ok?
Safety query
Solar circulation pump
Symbol revolves when solar circulation pump is on
Switch output 1 is active
Appears when switch output 1 is active (on)
Up
Switch output 2 is active
Appears when switch output 2 isUp active (on)
Down
Switch ouput 2
Up
fault 2
Switch
ouput
Up
Up
! System
Switch
2
Switch ouput
ouput
2
fault
Reference
to system fault
Display flashes when a fault occurs in the system
query ouput
Switch
2
! SafetySystem
fault
! System
System
fault
! Safety
Down
Down query
Down
ok?
System
fault
Solar query for value changes which are to be stored Input value can be either
rejected or
accepted
!! Safety
Systemquery
fault
ok?
System fault
! Safety
query
ok?
ok?
ok?Up
ok?
ok?
4
D
LR
D
R
LD
R
L
Safety
Left query
Left
Left query
Safety
Safety query
Safety query
Up
Right
Right
Right
DownUp
Up
Up
Down
Up
Down
Left Up
Up
Down
Down
Left
Down
Left
Left
Right
Right
Antifreeze sensor
Switch ouput 3
Solar pump circulation
Solar pump circulation
Switch ouput 3
Solar pump circulation
Switch output 1
User controls
Switch output 1
Solar pump circulation
Operation and programming of the SolaReady differential temperature controller is by means of 4 operating buttons.
Switch output 1
Switch ouput
2
By means of pressing
these
buttons you can:
Switch ouput 2
output 1
• recall displaySwitch
values
• carry out
adjustments
System fault
! controller
Switch ouput 2
System fault
! symbols
Switch ouput
The graphic
on 2the display step through the operating structure and show clearly the current menu points, display values or
parameters.
! System fault
ok?
Safety query
Buttonok?
Safety query
Operating
have the following functions:
Safety query
ok? buttons
!
ok?
System fault
Function
“Up”
Safety
query
Up
“+”
Up
Up“Call”
Down
Down
Up“Down”
Down
Left
“Scroll
Left
Down
left”
“Exit”
Left
Right
Right
Left
Description
• Step up through menu
• Value change: Increase of the indicated value by 1, holding the button down will
automatically increase values
• Call up of main menu, step down through menu
• Value change: Decrease of the indicated value by 1, holding down the button will
automatically decrease values
• In main menu, scrolls to the left
• Exit current menu
• Exit menu point
“Break-off”
Right
“Scroll right”
• Break-off value change without storing
• In main menu, scrolls to the right
“Choice”
Right
• Choosing one menu point
“Confirmation”
• Confirmation
It is not intended that the householder should attempt to programme the operation of the system so various parts of the
programming menu are not reproduced here.
For further information on programming the Solar Differential Temperature Controller refer to the Commissioning Section of the
Product Guide.
NOTE: Altering some settings could adversely affect the operation of the SolaReady system, if in doubt contact a qualified solar
installation engineer. Alteration of functions, not covered in this user guide will invalidate the warranty.
5
Temperature measuring point collector
Temperature measuring point collector
- return
Temperature measuring point storage
collectortank lower
storage
upper
Temperature measuring point collector
- return
storage tank
tank
lower
Info menu
info
In this menu mode all measured values
and operating states are shown.
Antifreeze sensor
storage tank
upper
Temperature measuring point collector
- return
Misc icon 1
Misc icon 1
programming
If the values are marked as “resettable”,
they may be reset by navigating through the menu and altering the valves using the control
Misc icon 1
2
info
buttons.
info
Switch ouput
3
Antifreeze
sensor
programming
Temperature
measuring point storage
tank upper
manual operation
programming
info
manual operation
programming
Solar
circulation
Switchpump
ouput
3
Antifreeze
sensor
info
basic adjustment
manual operation
programming
Indication
75ºC
Switch output
1
Systemouput
fault 2
Indication of current collector temperature
Misc icon 2
3
4
2
programming
Switch ouput
System
fault 2
Safety
query
Systemquery
fault
Safety
info
info
Up
Safety query
programming
programming
max. 105ºC
Indication of minimum collector temperature
Misc icon 3
4
2
Misc icon
2
Resettable to current
temperature
5x7 segment display Misc icon 4
2 of maximum collector temperature
Indication
Temperature measuring point collector
Misc icon 4
2
Misc icon
3
Resettable to current
temperature
basic adjustment
manual operation
5x7 segment display
basic adjustment
Temperature measuring point collector
52ºC
3
Misc icon 2
Misc icon 1
basic adjustment
manual operation
5x7 segment display
4
Misc icon 3
2
basic adjustment
min. 12ºC
5x7 segment display
Solar
circulation
Switchpump
output
ouput
21
Misc icon 1
2
3
Description
basic adjustment
manual operation
info
Solar
circulation
ouput
31
Switchpump
output
2
Misc icon 1
Reset possible?
No
Yes
Yes
5x7 segment display
Indication of current temperature storage tank (lower)
Temperature
Temperature measuring
measuring point
point storage
collectortank lower
Misc icon 4
2
Misc icon 1
info
Temperature measuring point storage tank lower
Temperature measuring
collector
5x7point
segment
display
Temperature measuring point collector
- return
programming
Temperature measuring point storage
collectortank lower
Indication of minimum temperature storage tank (lower)
Resettable to
current temperature
Misc icon 2
Temperature
- return
Temperature measuring
measuring point
point collector
storage tank
lower
Indication
of
maximum
temperature storage tank (lower)
manual operation
storage
upper
Misc
icon
Temperature
- return
Misc
icon 1
1 measuring point collector
storage tank
tank
lower
max. 67ºC
Temperature measuring point collector
Resettable
to
current
temperature
Temperature measuring point storage tank upper
Misc icon 3
min. 40ºC
Temperature
measuring point collector - return
basic adjustment
Antifreeze sensor
Temperature
storage tank
upper
Misc
icon 2
2 measuring point collector
- return
Misc
icon
Up
Down
Temperature
Misc
icon 1 measuring point storage tank lower
Antifreeze sensor
manual
manual operation
operation
Misc icon 4
Temperature measuring point storage tank upper
2
Switch ouput
3
Antifreeze
sensor
Temperature
measuring point storage tank upper
Misc
3
5x7 segment
display point collector
Misc icon
icon
3
Up
Down
Temperature
measuring
return
Left
basic
Misc 3icon 2
basic adjustment
adjustment
Switch ouput
Antifreeze sensor
Solar pump
circulation
Switch
ouput
3
Antifreeze
sensor
Misc
icon
4
2
Misctank
icon upper
4
Temperature
measuring point
2 storage
Down
Left
Right
Misc
icon
Misc
icon 1
3
Solar
pump
circulation
Switch ouput 3
5x7
5x7 segment
segment display
display Temperature measuring point collector
Solar pump
circulation
Switch
ouput
31
output
Antifreeze sensor
Left
Right
Misc
2
Misc icon
icon
4
2
Switch
output
1
Solar
pump
circulation
Temperature measuring point storage tank lower
No
Yes
Yes
25ºC
Indication of universal temperature measuring points (T3)
No
1234 h
Operating hours for charging storage tank (solar pump running time)
Resettable to 0 hours
Yes
The controller will display certain information in the event of some system faults. The following table indicates these and will aid in
describing the nature of the fault to the Service Engineer. DO NOT attempt to rectify faults yourself, contact the After Sales Service
number on 0844 871 1535 or a qualified Solar water heating engineer.
Solar
circulation
Switchpump
output
ouput
21
Switch ouput 3
Temperature
Temperature measuring
measuring point
point collector
collector
Right
Misc icon 3
Temperature
point collector - return
ouput
21
Switch
outputmeasuring
Misc icon 1
Switch output21
Temperature
Systemouput
fault
Solar pump circulation
Temperature measuring
measuring point
point storage
storage tank
tank lower
lower
ctor
Misc measuring
icon 4
2
Temperature
point storage tank upper
Switch
ouput
2
System fault
Misc icon 2
FLASHING
Switch ouput
Temperature
-- return
System
fault 2
Temperature measuring
measuring point
point collector
collector
return
Switch output 1
Safety
query
ok?
age tank lower
Antifreeze sensor
Systemquery
fault
Safety
ok?
Misc icon
3
Temperature
tank
Temperature measuring
measuring point
point storage
storage
tank upper
upper
FLASHING
Systemquery
fault
Switch ouput 2
Safety
ok?
ctor - return
Switch
ouput
3
ctor
Error representation
on display
!
!
Antifreeze
Antifreeze sensor
sensor
age
age tank
tank upper
lower
ok?
2
FLASHING
Switch
Switch ouput
ouput 3
3
ctor - return
Solar
Solar pump
pump circulation
circulation
Safety1 query
ok?
Switch
output
Additionally
at energy
Down
Up
productivity
measurement
age tank upper
Switch ouput 2
Left
Down
wer output 1
Switch
Switch
output 1
rn
Switch
Switch ouput
ouput 2
2
pper
System
System fault
fault
Safety
Safety query
query
Safety query
Misc icon 4
fault
+UpSolar
circulation
! pumpSystem
!
Up
Left
Up
Down
Left
Down
Down
Right
Right
Right
6
Down
Left
Right
Left
Right
Safety query
Right
Up
Up
Left
Left
!
Sensor wire broken
Sensor
defect
!
Short circuit in sensor wire
Sensor
defect
!
Error in pump connection
Up
Pump
defect
Safety
query
ok?
Air in the system
Up
Down
Connection with flow
meter defect
Up
Down
Left
Sensor wire broken
Sensor defect
System fault
Right
Left
Down
ok?
Possible reasons
Right
Right
Measures
Check wire
Check water resistance, if necessary exchange sensor
Check wire
Check water resistance, if necessary exchange sensor
Check cabling
Exchange pump
Check the float of the flow meter moves when the system runs (if visible)
Check wire
Check wire
Check water resistance, if necessary exchange sensor
Important notes
WARNINGS
IF WATER DISCHARGES FROM THE TEMPERATURE/PRESSURE RELIEF VALVE ON THE MEGAFLO ECO SOLAREADY UNIT REFER TO
PAGE 40 of the Product Guide (FAULT FINDING FLOW DIAGRAMS) FIRST FOR GUIDANCE. IF THIS DOES NOT RECTIFY THE
FAULT SWITCH OFF THE ELECTRICAL SUPPLY TO THE IMMERSION HEATER(S), AUXILIARY HEAT SOURCE AND SOLAR DIFFERENTIAL
CONTROLLER. DO NOT SWITCH OFF THE WATER SUPPLY. CONTACT A COMPETENT INSTALLER FOR UNVENTED WATER HEATERS TO
CHECK THE SYSTEM.
DO NOT TAMPER WITH OR REMOVE ANY OF THE SAFETY VALVES FITTED TO THE MEGAFLO ECO SOLAREADY SYSTEM, IF A FAULT
IS SUSPECTED CONTACT A COMPETENT INSTALLER.
If fluid or vapour is discharged from the Pressure Relief Valve on the Solar Hydraulic Station switch off
the power supply to the Solarflo Differential Temperature Controller and contact a qualified solar water
heating engineer.
The pipework between the solar collector panels and the solar cylinder can be very hot. These pipes should
have been insulated by the installer.
Solar Primary Circuit
Temperature control when heating by the solar primary circuit is controlled by the solar differential temperature controller supplied.
The controller should be set to give a water storage temperature of approx 60ºC, however it can be set to give other temperatures.
This will usually have been done during installation but can be adjusted by the user (see User Controls section of this Guide).
A maximum of 70ºC is recommended to avoid nuisance operation of the thermal cut-outs fitted to the unit. Adjustment is made at
the solar differential temperature controller.
Changes to the operating parameters set by the solar differential temperature controller can affect the efficiency of the operation of
the solar heating circuit, it is recommended that any changes are carried out by a competent solar water heating installer. DO NOT
make any adjustments in the Programming, Manual Operation or Basic Adjustment menus unless qualified to do so.
If the power supply to the solar differential temperature controller is interrupted your Megaflo Eco SolaReady system will not
operate. However, programmed settings are stored in the controller memory and should not need resetting when power is restored.
Auxiliary Heating
If configured to do so the auxiliary heating of the Megaflo Eco SolaReady can be controlled by the solar differential temperature
controller. If this has not been configured control of the auxiliary heating input is done by the various controls fitted as follows:
By Immersion Heater(s)
A combined thermostat and thermal cut-out is provided for each immersion heater. The thermostat is factory set to give a water
temperature of approx. 60ºC, however it can be set to control between 12ºC and 68ºC. The temperature will normally have
been set during installation. Adjustment is made by removing the upper terminal cover(s). SWITCH OFF THE ELECTRICAL SUPPLY
BEFORE REMOVING THE COVER(S). Temperature adjustment is made by inserting a flat bladed screwdriver in the slot on top of the
thermostat spindle and rotating (see Fig. 13, page 17 of the Product Guide).
By Auxiliary heat source
A combined thermostat and thermal cut-out is provided for the auxiliary heat source (e.g. a conventional boiler). The thermostat is
factory set to give a water temperature of approx. 60ºC, however it can be set to control between 12ºC and 68ºC. The temperature
will normally have been set during installation. Adjustment is made by removing the upper terminal cover(s). SWITCH OFF THE
ELECTRICAL SUPPLY BEFORE REMOVING THE COVER(S). Temperature adjustment is made by inserting a flat bladed screwdriver in
the slot on top of the thermostat spindle and rotating (see Fig. 13, page 17 of the Product Guide). If in doubt contact a competent
electrician
Flow performance
When initially opening hot outlets a small surge in flow may be noticed as the system pressure stabilises. This is quite normal with an
unvented system and does not indicate a fault. In some areas a cloudiness may be noticed in the hot water. This is due to aeration of
the water, is quite normal and will quickly clear.
Operational Faults
Operational faults and their potential causes are detailed in the Fault Finding Flow Diagrams on pages 38 to 41 of the Product Guide.
It is recommended that any system faults are checked and rectified by a competent installer.
Servicing and Maintenance
To ensure the continued safe and efficient operation of your Megaflo Eco SolaReady water heating system it should be regularly
checked and maintained by a competent engineer for unvented systems and solar thermal systems. It is recommended that the
checks be carried out on an annual basis in accordance with the Maintenance requirements detailed in the Product Guide.
The Benchmark Service Record and Solar Thermal system checklist should be completed following servicing and/or maintenance.
The concentration of the solar thermal transfer fluid should be checked and, if necessary, topped up or replaced every 2 years.
Failure to maintain the system may invalidate your guarantee.
7
Customer Service
Telephone:
0844 871 1535
Fax:
0844 871 1528
Email:
megafloservice@heateam.co.uk
Megaflo
Hurricane Way
Norwich
Norfolk
NR6 6EA
Lifetime Guarantee Terms and Conditions
WARNING: Should the factory fitted temperature and pressure relief valve be tampered with or removed your guarantee will
be invalidated. Neither the Distributor nor Manufacturer shall be responsible for any consequential damage howsoever caused.
Guarantee Terms
Heatrae Sadia guarantees the Megaflo Eco SolaReady against faulty manufacture or materials for a period of two years from the date
of purchase including parts and labour. This two year guarantee is extended to five years for the cold water control valve and to lifetime*
for the stainless steel inner vessel in domestic properties and to 30 years for the stainless steel inner vessel in commercial buildings.
These guarantees are valid provided that:
•The Megaflo Eco SolaReady has been installed by a competent installer and as per the instructions contained in the installation
manual and all relevant Codes of Practice and Regulations in force at the time of installation.
•Any disinfection has been carried out in accordance with BS 8558.
•The Megaflo Eco SolaReady has not been modified in any way other than by heateam approved engineers.
•The Megaflo Eco SolaReady has only been used for the storage of wholesome water (max. 250mg/l chloride).
•The Megaflo Eco SolaReady has not been subjected to frost, nor has it been tampered with or been subjected to misuse or neglect.
•No factory fitted parts have been removed for unauthorised repair or replacement.
•The Benchmark™ Commissioning Checklist and Service Record included in this product Guide has been completed.
•Regular maintenance has been carried out by a competent person in accordance with the requirements set out in the maintenance
section of the installation manual and any replacement parts used should be authorised Heatrae Sadia Megaflo spare parts.
Annual Services are available from heateam, the service division of Heatrae Sadia. Please contact heateam on Tel: 0844 871 1535
for further details.
•Within 60 days of purchase the owner completes and returns the certificate supplied to register the product. Evidence of purchase
and date of supply must be submitted upon making a claim.
•This guarantee is not valid for installations outside the United Kingdom.
For installations outside of the United Kingdom, please contact either the Megaflo Export Department on Tel: +44 1603 420271 or
Baxi International on Tel: +44 1926 478323 for further details of the guarantee terms and conditions applicable. This guarantee does
not affect your statutory rights.
The unit is not guaranteed against damage due to frost. This guarantee does not affect your statutory rights.
If you have purchased a Megaflo Solar collector package to be installed with your Megaflo Eco SolaReady unit you will be pleased to
know that Flat plate collector systems are covered by a ten year warranty and Evacuated tube systems by a five year warranty.
Please note only the SolaReady unit will be covered by warranty if collectors other than Megaflo Solar are used.
As stated in our sales literature we can only guarantee the performance of the unit when coupled to a Megaflo Solar collector system.
*Lifetime is defined as for as long as the original owner who purchased the Megaflo Eco SolaReady / New Home continues to own the property. If the owner sells the property, the new owner (and
any future owners) will receive a 30 year warranty from the time the original owner purchased the Megaflo Eco SolaReady or new property with Megaflo Eco SolaReady installed.
3600 6225 Issue 1
© 2013
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