MEGAFLO Eco SolaReady User manual

MEGAFLO Eco SolaReady user guide
MEGAFLO Eco SolaReady

BLENDING VALVE
SOLAR EXPANSION VESSEL
DHW EXPANSION VESSEL
TUNDISH
DRAIN COCK
DRAIN COCK
SOLAR PRIMARY RETURN
SOLAR PRIMARY FLOW
SOLAR CONTROLS HOUSING
ELEMENT / CONTROLS
HOUSING
AUXILIARY PRIMARY RETURN
AUXILIARY PRIMARY FLOW
T & P VALVE
SECONDARY RETURN
TAPPING (IF REQ’D)
SOLAR PUMP STATION
SOLAR CONTROL INTERFACE
COLD WATER INLET
DISCHARGE PIPE
3 BAR PRESSURE
REDUCING VALVE
STOP COCK
BALANCED COLD WATER
CONNECTION (IF REQ’D)
6 BAR PRESSURE
REDUCING VALVE
QUICK RELEASE
CONNECTOR VALVE
PUMP STATION
SAFETY GROUP
2
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

3
Tundish
Megaflo Eco
SolaReady
Balanced cold water
draw-o
Blending valve
Factory tted
8 Bar Pressure Relief
Valve (combined
Expansion Relief
Valve/Check Valve
– factory tted)
3 Bar Pressure Reducing
Valve incorporating
Pressure Reducing Valve,
Strainer,and Check Valve.
(factory tted)
MCWS to Kitchen
(unbalanced cold
mains supply)
Incoming Cold
Water Main
KEY
MCWS = Mains cold water supply
HWS = Hot water service
SC = Stop Cock / Isolating Valve
DOC = Drain O Cock
Discharge pipe to atmosphere
(see page 14 “Discharge Pipework”)
Isolating/Regulating
Valves, as required
Temperature/Pressure
Relief Valve
HWS supply
Balanced HWS and
MCWS to bathrooms,
showers, cloakrooms,
etc
DOC DOC
DOC
DOC
SC
SC
Expansion Vessel
Megaflo Eco
SolaReady
Flow meter
Air separator
Isolating /
check valves
Solar circulating
pump
Solar expansion valve
Flexible connector Primary
pump
CH circuit
Motorised valve
(supplied)
Boiler / auxiliary
heat source
Solar expansion
vessel
Solar discharge
collection vessel
Dashed line
denotes Solar
Hydraulic Station
(supplied fitted)
Solar collector(s)
S4
M
M
Cold and hot water supply circuits
Solar and CH primary circuits

4
Graphic Description Indication in operation
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
Info menu
When symbol flashes it is possible for it to be selected. If that
symbol is chosen by pressing the button, the symbol remains
static (not flashing)
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
Programming menu
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
Manual operation menu
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
Basic adjustment menu
Indicator values
dT Temperature difference
min Min value Appears when minimum values are indicated
max Max value Appears when maximum values are indicated
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
5 x 7 segment display
Presentation of figures 00000 to 99999 Display of all values, display flashes when a value is changed
ºC Temperature in celsius
KTemperature difference in Kelvin
hOperating hours
kWh Productivity indication in kWh
Measuring points assignment
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
Temperature measuring point collector
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
Temperature measuring point storage tank lower
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
Temperature measuring point collector – return
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
Temperature measuring point storage tank upper
(thermostat function)
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
Antifreezing sensor or universal temperatures
measuring point (T3) (no sensor monitoring)
Status indication
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
Solar circulation pump Symbol revolves when solar circulation pump is on
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
Switch output 1 is active Appears when switch output 1 is active (on)
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
Switch output 2 is active Appears when switch output 2 is active (on)
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
Reference to system fault Display flashes when a fault occurs in the system
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok?
Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
Solar query for value changes which are to be stored Input value can be either
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
rejected or
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
accepted
System operation
Generally the operating settings of your Megaflo Eco SolaReady Domestic hot water heating system will have been set up by your
installer. For the system to operate correctly and efficiently these settings should not be altered. The following section details the
user controls which your installer should familiarise you with during commissioning the system.
If in doubt contact a qualified solar installation engineer, alteration of some settings could adversely effect the operation of the
SolaReady system. As with any heating system there are certain aspects that will require regular checking and/or maintenance.
Page 7 details what these should be. Any maintenance or servicing should only be carried out by qualified personnel and be
recorded in the Maintenance and Servicing sections of the Product Guide supplied with the Megaflo Eco SolaReady.
User controls
The following gives an overview of the Solar Differential Temperature Controller Display and operation.
3.0 System operation
Generally the operating settings of your Baxi Solarflo
Domestic hot water heating system will have been set up
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.
If in doubt contact a qualified solar installation
engineer, alteration of some settings could adversely
effect the operation of the Solarflo system.
As with any heating system there are certain aspects that
will require regular checking and/or maintenance.
Section 6 details what these should be. Any maintenance
or servicing should only be carried out by qualified
personnel and be recorded in the Commissioning
Maintenance and Servicing Guide supplied with the Baxi
Solarflo.
Solarflo - Solar Thermal Domestic Hot Water System Solarflo - Solar Thermal Domestic Hot Water System 54
4.0 User controls
The following gives an overview of the Solar Differential
Temperature Controller Display and operation.
4.1 Overview of display and operating elements
info
programming
manual operation
basic adjustment
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
info
programming
manual operation
basic adjustment
5x7 segment display
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
info
programming
manual operation
basic adjustment
5x7 segment display
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
info
programming
manual operation
basic adjustment
5x7 segment display
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
4.1.1 Explanation of graphic symbols
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
!
System fault
ok?
Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
When symbol flashes it is possible for it to be
selected. If that symbol is chosen by pressing the
button, the symbol remains static (not flashing).
Graphic symbol Description Indication in operation
Indicator values
dT Temperature difference
min Min value Appears when minimum values are indicated
max Max value Appears when maximum values are indicated
5 x 7 segment display. Display of all values, display flashes when
Presentation of figures 00000 to 99999 a value is changed
ºC Temperature in Celsius
KTemperature difference in Kelvin
hOperating hours
kWh Productivity indication in kWh
Graphic symbol Description Indication in operation
Main Menu
Menu "Info"
Menu "Programming"
Menu "Manual operation"
Menu "Basic adjustment"
1
2
4
35
Fig. 2
(see Fig. 2).
Number Description
1 Display with graphic symbols
2 Control button scroll upwards / +
3 Control button exit / break-off
4 Control button scroll downwards / –
5 Control button choice / confirmation
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
!
System fault
ok?
Safety query
Up
D
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
!
System fault
ok?
Safety query
Up
D
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
!
System fault
ok?
Safety query
Up
D
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
!
System fault
ok?
Safety query
Up
Down
L
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
!
System fault
ok?
Safety query
Up
Down
L
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
Graphic symbol Description Indication in operation
Measuring points assignment
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
(thermostat function)
Antifreezing sensor or universal temperatures
measuring point (T3) (no sensor monitoring)
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
!
System fault
ok?
Safety query
Up
Down
L
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
!
System fault
ok?
Safety query
Up
Down
Left
R
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
!
System fault
ok?
Safety query
Up
Down
Left
R
Misc icon 2
Misc icon 3
Misc icon 4
2
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
!
System fault
ok?
Safety query
Up
Down
Left
Right
Misc icon 2
Misc icon 3
Misc icon 4
2
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
!
System fault
ok?
Safety query
Up
Down
Left
R
Misc icon 2
Misc icon 3
Misc icon 4
2
in
fo
prog
ramming
manual o
peration
bas
ic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
!
System fault
ok?
Safety query
Up
Down
Left
Right
M
isc icon 1
M
isc icon 2
M
isc icon 3
M
isc icon 4
2
in
fo
prog
ramming
m
anual operation
bas
ic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage t
ank lower
Temperature measuring point collector -
return
Temperature measuring point storage t
ank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
!
System fault
ok?
Safety query
Up
Down
Left
Right
Status indication
Solar circulation pump Symbol revolves when solar circulation pump is on
Switch output 1 is active Appears when switch output 1 is active (on)
Switch output 2 is active Appears when switch output 2 is active (on)
Reference to system fault Display flashes when a fault occurs in the system
Safety query for value changes which are to be stored Input value can be either
rejected or accepted
4.0 User controls
303046_solar user guide 8pp 23/6/06 16:26 Page 4
Number Description
1 Display with graphic symbols
2 Control button scroll upwards / +
3 Control button exit / break-off
4 Control button scroll downwards / -
5 Control button choice / confirmation

5
Button Function Description
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
“Up”
“+”
• Step up through menu
• Value change: Increase of the indicated value by 1, holding the button down will
automatically increase values
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
“Call”
“Down”
• 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
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
“Scroll left”
“Exit”
“Break-off”
• In main menu, scrolls to the left
• Exit current menu
• Exit menu point
• Break-off value change without storing
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
“Scroll right”
“Choice”
“Confirmation”
• In main menu, scrolls to the right
• Choosing one menu point
• Confirmation
User controls
Operation and programming of the SolaReady differential temperature controller is by means of 4 operating buttons.
By means of pressing these buttons you can:
• recall display values
• carry out controller adjustments
The graphic symbols on the display step through the operating structure and show clearly the current menu points, display values or
parameters.
Operating buttons have the following functions:
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.

6
Indication Description Reset possible?
75ºC
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
Indication of current collector temperature No
min. 12ºC
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
Indication of minimum collector temperature
Resettable to current temperature Yes
max. 105ºC
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
Indication of maximum collector temperature
Resettable to current temperature Yes
52ºC
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
Indication of current temperature storage tank (lower) No
min. 40ºC
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
Indication of minimum temperature storage tank (lower)
Resettable to current temperature Yes
max. 67ºC
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
Indication of maximum temperature storage tank (lower)
Resettable to current temperature Yes
25ºC
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
Indication of universal temperature measuring points (T3) No
1234 h
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
Operating hours for charging storage tank (solar pump running time)
Resettable to 0 hours Yes
Error representation
on display
Possible reasons Measures
Sensor wire broken Check wire
Sensor defect Check water resistance, if necessary exchange sensor
Short circuit in sensor wire Check wire
Sensor defect Check water resistance, if necessary exchange sensor
Error in pump connection Check cabling
Pump defect Exchange pump
Air in the system Check the float of the flow meter moves when the system runs (if visible)
Connection with flow
meter defect
Check wire
Sensor wire broken Check wire
Sensor defect Check water resistance, if necessary exchange sensor
Info menu
In this menu mode all measured values and operating states are shown.
If the values are marked as “resettable”, they may be reset by navigating through the menu and altering the valves using the control
buttons.
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.
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2
FLASHING
FLASHING
FLASHING
Additionally at energy
productivity measurement
+
info
programming
manual operation
basic adjustment
5x7 segment display
Temperature measuring point collector
Temperature measuring point storage tank lower
Temperature measuring point collector - return
Temperature measuring point storage tank upper
Antifreeze sensor
Solar pump circulation
Switch output 1
Switch ouput 2
Switch ouput 3
!
System fault
ok? Safety query
Up
Down
Left
Right
Misc icon 1
Misc icon 2
Misc icon 3
Misc icon 4
2

7
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.

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: [phone]
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: [phone] or
Baxi International on Tel: [phone] 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.
Customer Service
Telephone:
0844 871 1535
Fax:
0844 871 1528
Email:
[email protected]
Megaflo
Hurricane Way
Norwich
Norfolk
NR6 6EA
© 20133600 6225 Issue 1