Vent-Axia Optimax Plus Storage VASH050E User manual

These instructions should be read carefully
and retained for future use. Note also the
information presented on the appliance.
Optimax Plus Storage Heater (VASHE)
Models: VASH050E / VASH070E / VASH100E / VASH125E / VASH150E
08/80290/0 ISSUE: 1 Series: A
INSTRUCTION MANUAL
Installation and Operating

IMPORTANT SAFETY ADVICE
When using electrical heaters, basic precautions should always be followed to reduce the risk
of re, electrical shock, and injury to persons, including the following:
IMPORTANT – The wall bracket supplied with the heater must be used.
IMPORTANT – All packaging should be disposed of in an appropriate manner.
OVERHEATING WARNING
WARNING - In order to avoid overheating, do not cover or obstruct the heater. Do not place material
or garments on the heater, or obstruct the air circulation around the heater, for instance by curtains
or furniture, as this could cause overheating and a re risk. NEVER cover or obstruct in any way the
heat outlet slots at the top of the heater or the air outlet slots in the base of the heater.
WARNING - THE SURFACES ON THIS HEATER CAN BE HOT.
The heater carries a warning ‘DO NOT COVER’ to alert the user to the risk of re that exists if
the heater is accidentally covered.
CAUTION - Some parts of this product can become very hot and cause burns.
Particular attention has to be given where children and vulnerable people are present .
For your safety this heater is tted with a thermal cut-out. In the event that the product
overheats for some reason, the cut-out prevents excessive temperatures on the product by
cutting the power to the heater. Once the heater has cooled down, it will reset automatically, it
will continue to cycle on and off automatically until the reason for overheating is removed.
The display screen may ash red to indicate the product has overheated. To reset the display,
remove the obstruction and hold Enter for 10 seconds.
SUITABLE APPLICATIONS
WARNING - This heater is suitable for normal domestic household purposes and should not be
used in any other type of environment. This product should only be used in the country where it
was purchased from by a recognised commercial retailer. Do not use outdoors.
SERVICING AND REPAIRS
WARNING - Servicing and product repairs should only be undertaken by the manufacturers
approved service agent or a similarly trained or qualied person, using only exact manufacturer
approved spare parts.
PLEASE NOTE: Household dust, lit cigarettes, candles and oil burners, combined with the
convection effect of electric heaters can cause signicant soot deposits to build up on the
surface directly above and to the sides of the heater. This is not a fault of the heater. Extensive
burning of candles or smoking in the operating environment of this product can produce heavy
discolouration within a few months of use.
CAUTION
FAILURE TO FOLLOW THESE INSTRUCTIONS MAY CAUSE INJURY AND/OR DAMAGE
AND MAY INVALIDATE YOUR GUARANTEE
IMPORTANT
THESE INSTRUCTIONS SHOULD BE READ CAREFULLY AND RETAINED FOR
FUTURE REFERENCE. Note also the information presented on the appliance
2

OPERATING WARNINGS
IMPORTANT: Remember to observe all safety warnings and precautions when operating the
heater on the automatic or timer modes, either attended or unattended since a re risk exists
when the heater is accidentally covered or obstructed.
Mains cables are not provided with this heater.
CAUTION: Do not use if either of the heater’s mains power leads become damaged. If the supply
cord is damaged it must be replaced by the installer or an approved service partner.
Curtains must not come to within 250mm of the top of the heater.
Do not sit or stand on the heater
Do not place objects in contact with the heater.
To maintain stability, it is essential that the heater is placed on a level surface and care should
be taken to avoid irregular surfaces, such as may result from carpets or tiled surrounds
partially protruding under the heater.
ELECTRICAL INSTALLATION
The installation of the heater should be carried out by trained personnel.
This product is IPX4 rated, however we do not recommend this heater is installed in
bathrooms or wet rooms.
WARNING - Minimum clearances and IP zone requirements must be adhered to in
accordance with the current wiring regulations.
WARNING - The electrical installation of this heater must be carried out by a suitably qualied or
trained electrician, and be in strict accordance with current wiring Regulations. The peak supply
must be connected via a switched fused spur with a fuse rated suitably for the appliances ex,
the off-peak supply , via a 20A double pole switch. Failure to follow these instructions will mean
that the manufacturer’s instructions have not been adhered to. THERE ARE NO EXCEPTIONS.
• This heater must be earthed
• Not suitable for connection via a plug top
• Do not locate the heater immediately above or below a xed electrical point i.e. socket outlet.
This appliance is intended for installation to a single phase supply only and is not suitable for
connection to 3 phase supplies.
The heater is not tted with a mains cable, this should be tted by the installer. Cable type
(minimum size) H05VV-F 1.5mm² three core for peak and 2.5mm² three core for off-peak for
connection to the xed wiring of the premises through suitable isolation devices positioned
adjacent to the heater. The supply circuits to the heater must incorporate a double pole isolating
switch having a contact separation of at least 3mm.
In installation the supply cord may be cut to the appropriate length for the electrical connection
point. Excess cable should not be inserted or stored behind the heater.
If, during reassembly of the heater, a part of the thermal insulation shows damage or deterioration,
it should be replaced by an identical part.
WARNING: All electrical connections to the terminal block must be secure to prevent risk of
ignition. Tighten to 0.5 Nm.
3

CHILD SAFETY
WARNING - Fixing kit screws are a potential choking hazard.
WARNING - This appliance is not intended for use by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have
been given supervision or instruction concerning use of appliance by a person responsible for
their safety.
This appliance can be used by children from 8 years and above and persons with reduced
physical, sensory or mental capabilities or lack of experience and knowledge if they have been
given supervision or instruction concerning use of the appliance. Children shall not play with the
appliance. Cleaning and user maintenance shall not be made by children without supervision.
Children of less than 3 years should be kept away unless continuously supervised. Children
aged from 3 years and less than 8 years shall only switch on/off the appliance provided that it
has been placed or installed in its intended normal operating position and they have been given
supervision or instruction concerning use of the appliance in a safe way and understand the
hazards involved. Children aged from 3 years and less than 8 years shall not regulate and clean
the appliance or perform user maintenance.
Technical Details
Models VASH050E VASH070E VASH100E VASH125E VASH150E
Input Rating +5% / -10% 1020W 1560W 2220W 2760W 3300W
Nominal Output (kW) 0.50 0.70 1.00 1.25 1.50
Storage Element Rating 230/240V~: 936/1020W 1435/1560W 2042/2220W 2540/2760W 3024/3300W
Rated Charge Period: 7.7 - 7 Hours 7.7 - 7 Hours 7.7 - 7 Hours 7.7 - 7 Hours 7.7 - 7 Hours
kWh: 7.14kWh 10.9kWh 15.5kWh 19.3kWh 23.1kWh
Fan Wattage 11W 11W 11W 11W 11W
UI Wattage 0.5W 0.5W 0.5W 0.5W 0.5W
Sound Level dB (measured in test chamber) 27 29 32 30 31
Energy Cell Packs Required 4 6 8 10 12
Installed Weight: 63kg 85kg 107kg 133kg 155kg
Height (mm) 749 749 749 749 749
Width (mm) 581 703 825 947 1069
Depth (mm) 182 182 182 182 182
4

All Models
Controls
Digitally controlled, Electronic Thermostat accurate to (±0.2oC).
Setpoint range (7-26°C)
Timer modes: 7 Day Programmable User Timer
Controller UI
Graphical display with white backlight
•Capacitive buttons with audio feedback
•User replaceable battery (Coin-Type)
Controller Functions
•Open window detection
•Automatic Charge Control
•Heat Demand % Adjustment
•History/Reporting
•Child Lock
Safety Features
Electronic overheat protection. Additional electromechanical overheat protection.
LVD and EMC compliance.
Storage Core High-density bonded magnetite energy cells
Colour/ Finish White (RAL 9016) ‘Trafc White’ Grill RAL7035 anodised
Battery Backup 3.3V coin cell battery to backup real time clock. Battery life > 5 years.
Supply 1/N/PE 230-240V / 50Hz (Peak / Off Peak)
Class II
IP Rating IPX4
Approvals
CE
Warranty 2 Years
Country of Origin United Kingdom
Manufacturer Vent-Axia
5

Y
Y
X
X
Room Sensor
Housing
Models 050 070 100 125 150
Feet Position
1 ‘A/B’ 167/124 167/185 167/246 160/314 160/375
Feet Position
2 ‘A/B’ 93/198 93/259 93/320 100/374 100/435
1. Place the heater within its packaging at
on the ground with arrows printed on the
base of the carton pointing upwards.
2. Feet are tted in the default position (X
position) and can be moved to the outside
position (Yposition) if necessary. (Fig.
1a and Fig. 1b). NB: Repositioning
of feet may be required depending on
oor arrangement (e.g. replacing an
installation).
Stand the heater on its feet before removing
the packaging.
CAUTION SHOULD BE TAKEN NOT TO
REST THE HEATER UPON THE ROOM
TEMPERATURE SENSOR HOUSING. (Fig. 1b)
Dispose of packaging in an appropriate way.
Read these instructions carefully before
proceeding any further with the installation.
3. Ensure the heater is stable before removing
the screws which hold the bottom grille panel in position. (Fig. 2) Set the bottom grille to one
side, avoiding its sharp edges when handling.
4. Remove the two screws securing the front panel, located at the bottom of the heater (Fig. 3).
Once removed set carefully to one side to avoid damage.
NOTE - Retain these screws for reassembly. If misplaced, M4 x 10 Tritap screws must be used.
IMPORTANT - Do not use the outer top panel or the rear heat shield to lift or carry the heater.
A
749mm
150mm
(min)
150mm
(min)
B
W
BA
Preparation
Fig. 1bFig. 1a
6

Do not place objects within 300mm of the front of the heater
and 150mm (min. 75mm) either side.
250 mm
300 mm
150 mm
Ensure the back of the heater is ush against the wall. If the skirting board is taller than
120mm and deeper than 15mm it should be cut to accommodate safe installation of the
heater.
120 mm
15 mm
150 mm
Fig. 2 Fig. 3
7

The heater must be securely xed to a wall. Screws with suitable wall xings for solid walls
are provided. If other wall types are encountered it is the installer who must choose the most
suitable xing.
SUGGESTED FIXINGS
SOLID BRICK/BLOCK: No. 10 size high temperature resistant plastic inserts, 8mm drill bit. Drill
hole 15mm deeper than plastic insert length.
PLASTERBOARD - If possible locate studding and use No. 10 woodscrews directly into the
wood, otherwise M5 rawlplug intersets are suitable.
NOTE: FOR OTHER WALL TYPES (eg. timber frame and hollow concrete)
SEEK SPECIALIST ADVICE.
If the oor is carpeted then the carpet should be slit and underlay cut away to allow the feet to
rest rmly on the oor. Carpet gripper must be locally removed so that the feet may rest in a
level position.
This appliance is heavy. The oor must be checked to ensure that it is capable of bearing the
weight of the unit, up to 165kg.
This Heater is rated IPX4
DO NOT UNDER ANY CIRCUMSTANCES ATTEMPT TO MOVE OR REPOSITION
THIS HEATER WITHOUT SEEKING EXPERT ADVICE. THE HEATER SHOULD
NEVER BE FREED FROM THE WALL WITH ENERGY CELLS INSIDE.
USE CAUTION WHEN INSTALLING THIS PRODUCT, UNPAINTED METALWORK
CAN HAVE SHARP EDGES.
IMPORTANT Head of wall xing screw must be anged pan head type and have a diameter
no less than 11mm. No countersunk headed screws to be used for wall xing.
Installing the Heater
Fig. 5Fig. 4
8

5. Place the heater in its nal position and mark the xing holes through the location holes
visible through the back of the heater.
6. Six xing positions must be selected for models VASH100E, VASH125E, VASH150E and at
least 4 xing positions for models VASH050E and VASH070E. Fig. 6.
Common xing points for all heater sizes are shown in both Fig. 4 and Fig. 5.
Mark the positions for the xing holes towards the bottom of each slot, this allows the heater to
settle once the energy cells have been tted.
Move the heater away from the wall, drill the holes and t the wall xings best suited to the
application.
Secure the heater to the wall using correct quantity of screws required per model, using the
appropriate screw ttings.
NB: Do not fully tighten screws until energy cells are fully loaded to ensure full weight is
on feet and not on the wall xings.
NOTE: UNDER NO CIRCUMSTANCES SHOULD ANY SCREWS BE REMOVED WITHOUT
FIRST REMOVING ALL ENERGY CELLS FROM THE HEATER.
NEVER FREE THE HEATER FROM THE WALL WITH ENERGY CELLS REMAINING INSIDE
THE HEATER CAVITY.
NOTE: ANY FIXING DROPPED INTO HEATER MUST BE RETRIEVED AS THEY MAY
IMPACT PRODUCT SAFETY OPERATION.
Fig. 6
9

Warning: Before obtaining access to terminals, all supply circuits must be disconnected.
7. The heater leaves the factory congured to operate with two mains supplies, a 24 hour peak
supply and an off peak switched supply. (Fig. 7)
Not suitable for use on single supply.
Storage / Fan circuit
Fan Circuit = PEAK L
Storage Circuit = OFF-PEAK L
Fan Circuit = PEAK N
Storage Circuit = OFF-PEAK N
The earth wire should be connected into the earth terminal block marked E
WARNING - Terminal block maximum torque 0.5 Nm
Neutral
Live
(Off-Peak)
Neutral
Live
(Peak)
Earth
(Both Supplies)
Switched
Supply
Terminal Block
Mains
Cable
Tighten Screws
Electrical Connections
Fig. 8Fig. 7
10

8. The mains cable entry and terminal block will be visible on the right hand side of the unit.
Insert the mains cables through the cable gland at the bottom of the heater in readiness for
connection (Fig. 8).
IMPORTANT - Only heat resistant ordinary polyvinyl chloride sheathed exible cord should be
used, the following codes apply;
IEC - 60227 IEC57 or CENELEC - H05V2V2-F
Maximum Cable Sizes
Peak mains cable 1.5mm²
Off-peak mains cable 2.5mm²
WARNING - Maximum torque 0.5 Nm
WARNING: All electrical connections to the terminal block must be secure to prevent
risk of ignition.
11

Fig. 10Fig. 9
Fig. 12Fig. 11
12

9. Remove the inner front and insulation to gain access to the core of the heater.
Lay the inner front carefully to one side to ensure it is not damaged. (Fig. 9)
10. Remove the cardboard element support and dispose of. (Fig. 10)
Energy Cells
The energy cells are supplied separately to the heater in packs of three.
Energy Cells should be handled with care due to the weight and risk
of hand/foot injury.
11. The energy cells have several grooves on one surface for locating around the
elements. The two slots through the centre of the energy cell create the air
passages within the core.
Position the rst energy cell of the bottom row to the right, rmly pressed against
the side insulation with the element grooves facing upwards and tting neatly
around the element. Angle the element upward to t the energy cell.
Position the second energy cell in the row against the left-hand insulation. Place
the remaining energy cells between the rst and second in the row. (Fig. 11)
DO NOT DISCONNECT THE ELEMENT TERMINALS
In addition ensure the slots for the air passages line up with the holes in the base
insulation.
Fit the remaining energy cells to the bottom row, being careful not to damage or
dislodge the element.
Note - The bends in the element locate around the grooves in the energy cell
to secure the element.
12. Position the second row of energy cells on top of the rst but this time the
energy cells must be upside down ensuring the grooves are positioned over
the elements. (Fig. 12)
Building the Heater Core
30mm ±1mm
NOTE:
The element tails must extend
no further than 30mm into the
right hand chamber.
13

U
Fig. 14Fig. 13
Fig. 16Fig. 15
14

13. The third row of energy cells is positioned in a manner similar to the rst row.
Again be careful not to damage or dislodge the element. (Fig. 13)
14. Fit the fourth row of energy cells above the third row in the upside position.
Again, the rst energy cell should be positioned rmly against the right-hand
insulation, and the second energy cell should be positioned rmly against the
left-hand insulation. (Fig. 14). Repeat for the fth and sixth rows of energy cells
built around the third element to complete the core build.
15. Remember the top row of energy cells must be tted upside down. (Fig. 15)
Check that all the energy cells are secure and evenly located.
16. Close the core by retting the inner front panel complete with insulation, starting
at position ‘U’ and working clockwise. (Fig. 16)
Ensure the bottom tabs are located inside the chassis and that the screws are tightly
secured down each edge.
Ensure the screws retaining the heater to the wall are fully tightened, once the
energy retention cells are fully loaded. (Fig. 6)
IMPORTANT
Double check all mains connections are secure and excess cable is restrained and
not in contact with any of the heater casing.
ON NO ACCOUNT SHOULD ANY SURPLUS CABLE BE PUSHED INSIDE OR
BEHIND THE HEATER.
Once installed DO NOT attempt to reposition the heater without rst unloading
the energy cells.
Reassembly
To replace the bottom grille and front panel, reverse steps 3 and 4 of these instructions
under the section headed Preparation.
Inspect the grille guard for damage before retting the lower grille to the heater.
Ensure all xings are secure.
15

The controls are located on the top of the heater. The heater is tted with an adjustable
electronic controller consisting of a display screen and six touch sensitive buttons.
The heater is tted with an adjustable thermostat enabling the room temperature to
be controlled. The minimum room temperature is 7°C. The maximum temperature
is set to 26°C. A temperature of 21°C represents a normal room temperature.
1Display Screen
2 ‘Menu’ Button
3 ‘Back’ Button
4 ‘Up and Down’ Arrows
5 ‘Enter’ Button
6 ‘Advance’ Button
7Heating Status
NOTE:
Should the heater fail to operate, this may
be due to the room temperature being
higher than the thermostat setting.
NOTE:
Your heater may produce some noise during
operation. This noise is caused by the low
noise fan and expansion and contraction of
the metalwork as it changes temperature,
and is normal for this type of product. Whilst
the noise produced is usually very quiet,
certain environmental factors can make it
more noticeable, such as hard ooring or
minimal furnishings.
1
57 3
2 46
User Timer
Comfort On
Operation
16

The heater controls can be easily adjusted by using the six buttons on the User Interface.
1The Display Screen shows the options available at each stage of adjustment.
2Menu - displays the main options list;
- Date/Time - Set the date and time.
- Mode - Set the mode of operation.
- Options - Keypad sound, daylight savings time, communication settings and service
information.
3Back returns to the previous programming stage.
4The UP and DOWN buttons are used to navigate through the menus and alter setting values.
The UP and DOWN buttons are also used to adjust the required room temperature on the
main screen. The screen colour changes based on the temperature selected, showing deep
blue through to bright red.
5Enter is used within the menu options to conrm settings. On the main screen pressing Enter
will display the enabled features.
The timed periods during which the heater is providing heat are dened as ‘Comfort On’ (this
is displayed at the bottom of the screen).
Outside of heating periods the heater will not deliver heat and these periods are called
‘Comfort Off’.
While constant heat modes are active, the mode of operation is displayed at the bottom of
the screen
6The Advance button overrides the heating settings and changes the operational state of
the heater. Pressing Advance will cause the heater to remain on until the next Comfort Off
period is due, or off until the next Comfort On period is due.
Control Functions
17

After 30 seconds the heater will default back to the Main Screen. Here the chosen temperature
is displayed along with the mode of operation. Any use of the Advance, function will be displayed
here, and pressing Enter will show engineer’s diagnostics and 7 day history screens.
When left inactive for a long period of time this display will ‘sleep’ and the text will disappear.
Press any button for its return.
NOTE:
The display screen will
return to the main screen
after a period of 30
seconds of inactivity.
NOTE:
Pressing enter will show
the engineer’s diagnostics
and 7 day history screens.
Ref: page 17.
The heater incorporates a real time clock with calendar
function. The time clock has a battery backup that will
keep the clock running in the event of a mains power
outage.
To adjust the time or date follow the steps below.
Press the Menu button. Select Date/Time by
pressing the Enter button. Press UP and Down
to select the correct day of the month and press Enter
to select.
Repeat this operation, until the date and time has been
set, ensuring to press Enter to select. Press Back
button to return to the Main Screen once Set has been
displayed.
User Timer
Comfort On
User Timer
Comfort On
Date/Time
THU
27/07/2017
07:12
Date/Time
Set
U1:033 CC:016
AL6027
(0X422)
User Timer
A 2 3300 0
B 422 M 0
C 19.3 16.1
D 6.5 R 12667
E 21.0 26.0
F 19.3 15.9
G 28840 0 0
H 135 0 1841
7 Day History
Energy Used kWh
20/10/2017 0.0
21/10/2017 0.0
22/10/2017 0.0
23/10/2017 0.0
24/10/2017 0.0
25/10/2017 0.0
Main Screen
Setting the Date and Time
Main Menu
Date/Time
Mode
Options
18

NOTE:
Up and Down can be used to adjust the
required room temperature.
NOTE:
It is recommended that the timer is used as
doing so can reduce the running cost.
The heater comes pre-programmed with a user adjustable timer
User Timer (pre-programmed, factory default) - provides greatest exibility to the user. Four
time slots are available throughout the day and these can be customised for each day of the
week. Factory default times: 06.30 until 09.30, 11.00 until 13.00, 15.00 until 17.00, 18.00 until
22.00.
Mode of Operation
19

NOTE:
Once modied a programme must be
selected if you want to begin using it.
Timer Modes
To choose the timer mode press Menu and then Down to select Mode. Then press Enter.
Then select Timer Mode, again using the Enter button.
Select User Timer mode by pressing Enter.
For options User Timer, three choices are available - Select, Preview and Modify.
• Select - choose this timer option.
• Preview - view the times currently set.
• Modify - change the times currently set.
When Modify is chosen, select and change each option using the Up, Down and Enter buttons.
At the end of each period, select Next to move to the following period. When a day is complete
select Save to update it.
Once the rst day has been set up it is possible to copy these settings to successive days or all
days by either choosing Copy Next or Copy All.
If preferred each day can be modied individually and saved. It is also possible to Clear each
day or Clear All days to factory default times. Options are;
• Save - save times for one day.
• Copy Next - copy times to following day.
• Copy All - copy times to all seven days.
• Clear - factory defaults all times that day.
• Clear All - factory default times for all seven days.
To select a mode, choose Select and press Enter.
Main Menu
Date/Time
Mode
Options
Mode
Timer
Copy All
Selected
User Timer
Comfort On
Choosing and setting a Mode
20