Installation, Operating, Maintenance
and After Sales Manual.
SLIM-LINE RC
heatingthroughinnovation.
Product Serial Number:
Please leave this manual with the end user.
Part Number: 1370064
Issue 2
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SLIM-LINE RC 03
1.0 General Information
G This MYSON SLIM-LINE RC fan convector is designed for wall
mounted installation with a minimum installation height of
150mm to the underside of the unit.
programmed into the unit and the fan speed is automatically
adjusted until the desired room temperature is achieved. In
manual mode any of the 3 available fan speeds can be
selected without automatic room temperature control. This
feature can be used to circulate ambient air in summer,
for example, or to provide manual control of heating
performance.
G The SLIM-LINE RC should only be used on closed
circulation, two pipe, pump assisted central heating systems.
G The SLIM-LINE RC can be used on heat pump systems.
G The minimum side clearance is 100mm.
G The maximum ceiling height is 3m.
G The 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 the
appliance by a person responsible for their safety.
G Before proceeding with the installation, the heating system
design must be considered and the unit correctly sized to
meet the heat loss requirements of the room at normal fan
speed.
Children should be supervised to ensure that they do not play
with the appliance.
G This unit is supplied with an infra red remote control system
and can be operated in either automatic or manual mode.
In automatic mode the desired room temperature is
This unit MUST NOT be installed in a bathroom or other similar high humidity area.
2.0 Heating System Design
This fan convector must be fitted on a two pipe, pumped
circulation heating system.
4. The system water must be above 43°C for heating mode.
5. For heat pump applications - see Commissioning Procedure
For optimum fan convector heating performance the system
must be capable of providing sufficient hot water through the
heat exchanger. This means that:
6. This unit is NOT suitable for one-pipe systems.
7. Optimum performance will require effective balancing of
the whole system.
1. The minimum pipe size from boiler to fan convector must be
15mm.
8. This unit must not be used to replace a radiator in an
existing system unless an adequate flow of water through
the unit can be guaranteed.
2. This unit is not suitable for use on microbore pipe-work.
3. Where the unit is fitted on to a system with other emitters a
separate circuit for the fan convector should be considered
to provide adequate water flow.
3.0 Unit Selection/Sizing
Heat output performance is given in the Technical Data section
of this manual. Outputs are shown for the three fan speeds,
however, it is important to size the unit to match the calculated
heat loss requirements of the room with the unit operating on
the low fan speed. The higher fan speeds are used in automatic
mode when the room temperature is significantly lower than the
preset temperature.
When establishing the temperature difference, ie mean water to
room temperature, allowance should be made for temperature
drop in the system. It is the water temperature of the unit which
dictates the output.
4.0 Location
G This SLIM-LINE RC unit may be fitted to any convenient wall
at a height from floor level that suits the application,
providing an unimpeded flow of warm air into the area to be
heated.
G The unit should be mounted on a flat wall, and stud or
partition walls should be avoided to minimise the possibility
of noise transmission.
G The minimum distance from the underside of the unit to floor
level is 150mm.
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04 SLIM-LINE RC
5.0 Preparation
Before proceeding with the installation, unpack the carton
contents and check against the checklist below:
1. SLIM-LINE RC unit.
2. 15mm isolating valves (1 pair).
3. Instruction manual.
4. Warranty card.
5. Fixing kit (rubber mounts and cable gland).
6. Remote control handset.
6.0 Fixing
G Using the fixing dimensions (see fig. 1), mark the fixing hole
G Press adhesive washers to the wall.
positions on the wall.
G Remove outer case fixing screw at the bottom of the unit
G Drill and plug the wall for No. 8 x 40mm round head wood
screws ensuring that the wall plugs are suitable for the wall
type.
(see fig. 2).
G Lift off outer case.
G Fit chassis on to retaining screws and tighten.
G Remove the backing from the self-adhesive washers and place
on screws with adhesive side towards the point.
G Tighten the screws into the wall leaving about 9mm
projecting.
Fig. 1
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SLIM-LINE RC 05
7.0 Water Connections
G Connect unit to system flow and return pipes using the two
G Ensure system is flushed in accordance with recognised best
practice and a suitable inhibitor is added to the system as
necessary.
15mm isolating valves (see fig. 2).
Note: To ensure effective venting of the heat exchanger the flow
pipe should be connected to the bottom connection of the heat
exchanger.
G Open valves fully, check pipe connections for leaks and vent
the heat exchanger - see Commissioning Procedure.
Note: For SLIM-LINE RC installations pipe-work must not be
routed directly underneath the unit as this will adversely affect
the operation of the integral room thermostat. If this cannot be
avoided, the pipe-work must be boxed to prevent heat rise.
150
Fig. 2
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06 SLIM-LINE RC
8.0 Electrical Connection
WARNING: This appliance must be earthed. The electrical installation must comply with local or national
wiring regulations.
G This unit is supplied with factory fitted test leads. Remove
G Connect live and neutral wires to the power board terminal
these and discard.
connections, and the earth wire to the chassis earth terminal.
G A fused electrical spur with a maximum 3A fuse and a switch
having 3mm separation on all poles must be provided in an
easily accessible position adjacent to the unit.
G Electrical cable entry to the unit should be made through the
underside of the unit using the cable gland provided, or
through the hole provided at the upper right hand corner of
the chassis.
Wiring diagram
L N
y
w
bl
br
O O
br
bl
Motor
Power Board
Air Sensor
y
= Yellow
= White
w
Control Board
bl = Blue
Water Sensor
br = Brown
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SLIM-LINE RC 07
9.0 Commissioning Procedure
G Fill and vent the system.
G Change switch position (see fig. 3).
G Refit cover.
G Open both valves fully and vent air from the heat exchanger
by unscrewing the air bleed valve situated above the valves in
the angled top of the chassis.
G Switch on electrical supply.
G Check for leaks at pipe connections.
G Refit the outer case and secure using the 2 fixing screws.
G Switch on electrical supply.
Displayed Temperature Calibration
Depending on the location of the unit there may be a difference
between the temperature at the unit and the temperature in the
middle of the room being heated.
G Check the operation of the unit in automatic and manual
modes by following the operating instructions.
The displayed temperature calibration function enables
calibration in heating mode of the displayed temperature to the
actual room temperature using the following procedure:
G When installation and commissioning are complete, hand over
instruction manual to end-user.
G Press the ‘On/Off’ key and ‘+’ key for 5 seconds (the display
will flash, alternating between ‘ro’ and the calibration
temperature.
Heat Pump Applications - Low Water Set Point
Adjustment Heating Mode
G Calibrate the displayed room temperature by using the
The low limit water set point is factory set to 43°C, but for
systems such as those with heat pumps, a lower water set point
may be required. The set point can be adjusted using the set
point dip switch located on the control board.
‘+’ and ‘-’ keys with the fan running.
G Press the ‘On/Off’ key to finish
G Isolate electrical supply.
G Remove outer cover.
Switch
Switch Down
Switch Up
1
2
3
4
Water Stat Set Point
Heating
32°C
43°C
Heating
Do not use
Not Used
Temperature Display
°F
°C
Fig. 3
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08 SLIM-LINE RC
10.0 Technical Data
Heating Performance Data
Temperature Difference (°C)
Power
Fan Speed
Consumption
(watts)
Heat Output (watts)
Heat Output (Btu/h)
20°
860
30°
40°
50°
60°
20°
30°
40°
6210
7779
10100
50°
60°
Normal
Medium
Boost
1340
1710
2220
1820
2280
2960
2290
2870
3720
2770
3460
4460
2934
3856
5013
4572
5835
7575
7813
9792
9451
125
1130
1470
11806
15218
12693
Tested in accordance with BS 4856 Part 1.
Flow rate 340 ltr/h (75 gal/h).
Approximate Hydraulic Resistance through
Fan Convectors
Flow Rate Correction Factors:
455 ltr/h (100 gal/h) multiply by 1.03
227 ltr/h (50 gal/h) multiply by 0.96
113 ltr/h (25 gal/h) multiply by 0.85
mm wg
kPa
Litres/h
455
340
227
113
1771
1161
561
17.4
11.4
5.5
Electrical supply 230V 50Hz
Test pressure 20bar (1MPa)
Max working pressure 10bar (1MPa)
Water connections 15mm compression
Unit weight dry 14.3kg
201
2.0
Water capacity 0.51 litres
Noise levels in accordance with EN 23741
Fan
Sound Pressure at 2.5m (dBA)
Setting
Normal
Medium
Boost
21.9
30.6
39.7
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SLIM-LINE RC 09
11.0 Operating Instructions
Description
In manual mode the automatic temperature control is
overridden and any of the three fan speeds can be operated
inrespective of the water temperature in the unit. This means
that air circulation can be provided in summer for example, or
that heating performance can be controlled manually.
This SLIM-LINE RC unit is fitted with a control system that
provides either automatic or manual control of the unit. In
automatic mode the desired temperature set point is selected
and the unit will adjust the fan speed according to the difference
between the actual room temperature and the set point. When
the room temperature reaches the set point the fan will switch
off and thereafter will continue to cycle on and off to maintain
the room temperature. The temperature set point range is 15 - 35°C.
The unit can be controlled using the infra red remote control
handset supplied with the unit (see fig. 4) and also using
the control panel on the unit (see fig. 5). If necessary, however,
the control panel can be locked electronically to prevent
tampering once the controls have been set (see over).
Fig. 4
Fig. 5
The remote control hand set takes 2 AAA batteries (not supplied).
Controls
Display
Heating
Power button
‘+/-’ button
Switches unit on & off
The unit will only operate in heating mode when the central
heating boiler is on, the pump is running and the system water
temperature is greater than 43°C. Ensure the boiler is on, and
set timer, boiler controls and room thermostats as
necessary.
Adjust temperature set point from
15 - 35°C
Scrolls into F1, F2 or F3 manual mode
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10 SLIM-LINE RC
11.0 Operating Instructions (continued...)
Manual
Operation
Display
Manual mode can be used for air circulation without heat or for
manual control of the heating function.
Power off
No Display
Switch on supply to unit
(unit off)
for 30 seconds
Use ‘+’ to scroll
beyond 35°C
Selected fan speed
displayed
Or use ‘-’ to scroll
below 15°C
Supply on / unit off
Switch on unit
Set point flashes for
approx 5 secs, then
Ambient temperature
displayed
Scrolling back out of manual using the ‘+’ or ‘–’ button will revert
the unit back to last temperature set point.
Locking Unit Controls
Use ‘+/-’ to adjust
set point
Set point flashes for
approx 5 secs, then
The control panel on the main unit can be locked electronically
to prevent interference once the controls have been set. After
setting the unit to the desired temperature setting and with the
unit in running mode, press the On/Off button on the main unit
for about 6 seconds until the two middle horizontal bars appear
on the display. The horizontal bars will disappear after about 6
seconds and the unit is in key lock mode.
Ambient temperature
If any of the unit controls are pressed the horizontal bars will
reappear to show the key lock mode is activated, however,
during this mode the handset controls remain functional.
The ambient temperature is always displayed unless the water
temperature falls below 43°C*, or if the set point is being
adjusted.
To unlock the system press the On/Off button for about 6
seconds until the horizontal bars disappear.
Water temp <43°C
Shows both power
& unit on
*43°C in normal heating system, 32°C for heat pumps and above 20°C in cooling.
12.0 Troubleshooting
Once installed this fan convector becomes part of a complete
heating system that will generally include a boiler, pump, other
emitters such as radiators and fan convectors, and a number of
heating controls, dependent on system complexity. An apparent
problem with this unit may be the result of system controls being
incorrectly set and can be solved easily without calling out your
installer or MYSON Service. Before calling your installer or
MYSON Service, please carry out the checks listed opposite.
Note: If you call out MYSON Service to a fault detailed opposite,
or to repair a fault caused by incorrect use, a call out charge will
be made.
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SLIM-LINE RC 11
12.0 Troubleshooting (continued...)
Problem
Possible Causes
Unit switched off
Remedy
Turn on
Temperature set point reached
Unit not switched on at fused spur
Fuse blown at fused spur
Increase temperature set point
Switch on at spur
Replace fuse
Heating Mode -
No Fan
Unit isolating valves shut
Open valves
Water temperature reaching fan
convector below 43°C
Check boiler -
Programmer ON
(Heater model only)
Boiler ON and set to high with central
heating pump running
Note: Operation of fan convector can be checked by
switching to manual fan setting
Heating Mode
(Heater model only)
poor heating
performance and/or
unit cycles on
Low water temperature to unit
Poor water flow
Turn up boiler thermostat
Vent air from heating system
Note: Operation of fan convector can be checked by
switching to manual fan setting
water sensor
If the fan convector is still faulty after checking the above, call your installer or MYSON Service.
heat, and the heating system must be correctly designed to
Common Installation Faults
provide adequate flow of hot water to the unit (refer to section
2). If the recommendations in section 2 are not followed,
problems may arise as detailed below.
For optimum performance, this unit must be correctly sized to
match the heat loss requirements of the space it is required to
Problem
Possible Causes
Poor heating performance
Unit incorrectly sized for heat loss of room
(Heater model only)
Boiler thermostat set too low
Lack of flow to fan convector -
Heating Mode
(Heater model only)
poor heating
Pump set on low setting
performance and/or
unit cycles on
Isolating valves not fully open
water sensor
System incorrectly balanced with unit starved of hot water flow
Pipe sizing to unit too small
13.0 Maintenance
Before undertaking any maintenance activity isolate the
electrical supply.
with warm water and mild detergent taking care to avoid water
entering the grille areas.
Maintenance should be restricted to occasional removal of dust
and lint around the unit. The outer surface may be wiped over
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MYSON Eastern Avenue, Team Valley, Gateshead, Tyne & Wear NE11 0PG, UK
heatingthroughinnovation.
After Sales Service:
MYSON Service, Somerden Road, Hull, East Yorkshire HU9 5PE
Spare parts and technical help on all Convector products are available from MYSON Service.
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