Myson SLIM-LINE RC User manual

Installation, Operating, Maintenance
and After Sales Manual.
Product Serial Number:
Please leave this manual with the end user.
Part Number: 1371057
Issue 3
heatingthroughinnovation.heatingthroughinnovation.
SLIM-LINE RC
01.01.2014 ISSUE 3
Spare parts and technical help on all Convector products are available from MYSON Service.
MYSON INC 49 Hercules Drive, Suite 4904, Colchester VT0446
T: 802 654 7500, F: 802 654 7022, [email protected], www.mysoninc.com
Tested to UL & CSA Standards
27015 Slimline Manual US_Layout 1 19/12/2013 12:11 Page 1

1.0 General Information 03
2.0 Heating System Design 03
3.0 Unit Selection/Sizing 03
4.0 Location 03
5.0 Preparation 04
6.0 Fixing 04
7.0 Water Connections 05
8.0 Electrical Connection 06
9.0 Commissioning Procedure 07
10.0 Technical Data 08
11.0 Operating Instructions 09
12.0 Troubleshooting 10
13.0 Maintenance 11
03
SLIM-LINE RC
Contents 1.0 General Information
2.0 Heating System Design
lThis MYSON SLIM-LINE RC fan convector is designed for wall
mounted installation with a minimum installation height of
6 inches to the underside of the unit.
lThe SLIM-LINE RC should only be used on closed circulation,
two pipe, pump assisted central heating systems, or as a
stand alone zone.
lThe SLIM-LINE RC can be used on heat pump systems, for
heating only.
lThe minimum side clearance is 4 inches.
lBefore 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.
lIn rooms with ceiling heights above 10ft a ceiling fan or other
means of heating stratification should be considered.
lThis unit is supplied with an infra red remote control system
and has 3 operating modes:
Automatic - the desired room temperature is programmed in
to the unit and the fan speed is automatically adjusted until
the desired room temperature is achieved.
Fan only - allows user selection of any of the 3 available
fan speeds irrespective of room temperature or water
temperature in the coil.
Fan only with water temperature control - allows the user to
select any of the available fan speeds, which will operate only
if the water temperature in the coil is above 90°F. This
enables control of the unit via an externally mounted room
thermostat if desired.
This fan convector can be fitted on a series loop with mono-flo
or venturi Tees, on a two pipe system or as a stand alone zone.
For optimum fan convector heating performance the system
must be capable of providing sufficient hot water through the
heat exchanger. This means that:
1. Care must be taken in sizing both the pump and piping.
2. The minimum pipe size from boiler to fan convector must be
at least 1/2inch.
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.
4. The system water must be above 90°F for heating mode.
5. Optimum performance of this unit will require effective
balancing of the whole system.
6. This unit should NOT be used to replace a radiator in an
existing system unless an adequate flow of water can be
guaranteed through the unit.
7. The loop must be pumped. HI-LINE fan convectors are not
suitable for gravity circulation systems.
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, i.e. entering
water to room temperature, allowance should be made for
temperature drop in the system. It is the water temperature at
the unit which dictates the output.
4.0 Location
lThis 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.
lThe minimum distance from the underside of the unit to floor
level is 6 inches.
lThe unit should be mounted on a flat wall, and stud or
partition walls should be avoided to minimise the possibility
of noise transmission.
1.0
2.0
3.0
4.0
27015 Slimline Manual US_Layout 1 19/12/2013 12:11 Page 3

1.0 General Information 03
2.0 Heating System Design 03
3.0 Unit Selection/Sizing 03
4.0 Location 03
5.0 Preparation 04
6.0 Fixing 04
7.0 Water Connections 05
8.0 Electrical Connection 06
9.0 Commissioning Procedure 07
10.0 Technical Data 08
11.0 Operating Instructions 09
12.0 Troubleshooting 10
13.0 Maintenance 11
03
SLIM-LINE RC
Contents 1.0 General Information
2.0 Heating System Design
lThis MYSON SLIM-LINE RC fan convector is designed for wall
mounted installation with a minimum installation height of
6 inches to the underside of the unit.
lThe SLIM-LINE RC should only be used on closed circulation,
two pipe, pump assisted central heating systems, or as a
stand alone zone.
lThe SLIM-LINE RC can be used on heat pump systems, for
heating only.
lThe minimum side clearance is 4 inches.
lBefore 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.
lIn rooms with ceiling heights above 10ft a ceiling fan or other
means of heating stratification should be considered.
lThis unit is supplied with an infra red remote control system
and has 3 operating modes:
Automatic - the desired room temperature is programmed in
to the unit and the fan speed is automatically adjusted until
the desired room temperature is achieved.
Fan only - allows user selection of any of the 3 available
fan speeds irrespective of room temperature or water
temperature in the coil.
Fan only with water temperature control - allows the user to
select any of the available fan speeds, which will operate only
if the water temperature in the coil is above 90°F. This
enables control of the unit via an externally mounted room
thermostat if desired.
This fan convector can be fitted on a series loop with mono-flo
or venturi Tees, on a two pipe system or as a stand alone zone.
For optimum fan convector heating performance the system
must be capable of providing sufficient hot water through the
heat exchanger. This means that:
1. Care must be taken in sizing both the pump and piping.
2. The minimum pipe size from boiler to fan convector must be
at least 1/2inch.
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.
4. The system water must be above 90°F for heating mode.
5. Optimum performance of this unit will require effective
balancing of the whole system.
6. This unit should NOT be used to replace a radiator in an
existing system unless an adequate flow of water can be
guaranteed through the unit.
7. The loop must be pumped. HI-LINE fan convectors are not
suitable for gravity circulation systems.
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, i.e. entering
water to room temperature, allowance should be made for
temperature drop in the system. It is the water temperature at
the unit which dictates the output.
4.0 Location
lThis 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.
lThe minimum distance from the underside of the unit to floor
level is 6 inches.
lThe unit should be mounted on a flat wall, and stud or
partition walls should be avoided to minimise the possibility
of noise transmission.
1.0
2.0
3.0
4.0
27015 Slimline Manual US_Layout 1 19/12/2013 12:11 Page 3

05
SLIM-LINE RC
04 SLIM-LINE RC
7.0 Water Connections
lConnect unit to system flow and return pipes. It is
recommended that two 1/2inch isolating valves are fitted. This
will enable isolation of the unit for maintenance activities.
lEnsure system is flushed in accordance with recognised best
practice and a suitable inhibitor is added to the system as
necessary.
lOpen valves fully, check pipe connections for leaks and vent
the heat exchanger - see Commissioning Procedure.
Note: To ensure effective venting of the heat exchanger the flow
pipe should be connected to the bottom connection of the heat
exchanger.
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.
5.0 Preparation
Before proceeding with the installation, unpack the carton
contents and check against the checklist below:
1. SLIM-LINE RC unit.
2. Instruction manual.
3. Fixing kit (rubber mounts and cable gland).
4. Remote control handset.
6.0 Fixing
lUsing the fixing dimensions (see fig. 1), mark the fixing hole
positions on the wall.
lDrill and plug the wall for No. 8 x 11/2inch round head wood
screws ensuring that the wall plugs are suitable for the wall
type.
lRemove the backing from the self-adhesive washers and place
on screws with adhesive side towards the point.
lTighten the screws into the wall leaving about
3/8inch projecting.
lPress adhesive washers to the wall.
lRemove outer case fixing screw at the bottom of the unit
(see fig. 2).
lLift off outer case.
lFit chassis on to retaining screws and tighten.
5.0
6.07.0
143/16 4
13/413/4
315/16
41/4
21/26
Fig. 1
611/16
13/4
13/86
67/8
31/4
143/16
315/16
13/4
Fig. 2
27015 Slimline Manual US_Layout 1 19/12/2013 12:11 Page 5

05
SLIM-LINE RC
04 SLIM-LINE RC
7.0 Water Connections
lConnect unit to system flow and return pipes. It is
recommended that two 1/2inch isolating valves are fitted. This
will enable isolation of the unit for maintenance activities.
lEnsure system is flushed in accordance with recognised best
practice and a suitable inhibitor is added to the system as
necessary.
lOpen valves fully, check pipe connections for leaks and vent
the heat exchanger - see Commissioning Procedure.
Note: To ensure effective venting of the heat exchanger the flow
pipe should be connected to the bottom connection of the heat
exchanger.
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.
5.0 Preparation
Before proceeding with the installation, unpack the carton
contents and check against the checklist below:
1. SLIM-LINE RC unit.
2. Instruction manual.
3. Fixing kit (rubber mounts and cable gland).
4. Remote control handset.
6.0 Fixing
lUsing the fixing dimensions (see fig. 1), mark the fixing hole
positions on the wall.
lDrill and plug the wall for No. 8 x 11/2inch round head wood
screws ensuring that the wall plugs are suitable for the wall
type.
lRemove the backing from the self-adhesive washers and place
on screws with adhesive side towards the point.
lTighten the screws into the wall leaving about
3/8inch projecting.
lPress adhesive washers to the wall.
lRemove outer case fixing screw at the bottom of the unit
(see fig. 2).
lLift off outer case.
lFit chassis on to retaining screws and tighten.
5.0
6.07.0
143/16 4
13/413/4
315/16
41/4
21/26
Fig. 1
611/16
13/4
13/86
67/8
31/4
143/16
315/16
13/4
Fig. 2
27015 Slimline Manual US_Layout 1 19/12/2013 12:11 Page 5

07
SLIM-LINE RC
06 SLIM-LINE RC
9.0 Commissioning Procedure
lFill and vent the system.
lOpen both valves fully and vent air from the heat exchanger
by unscrewing the air bleed valve situated at the top of the
coil and accessible through the right hand side of the chassis.
lCheck for leaks at pipe connections.
lRefit the outer case and secure using the 2 fixing screws.
lSwitch on electrical supply.
lCheck the operation of the unit by following the operating
instructions.
lWhen installation and commissioning are complete, hand over
instruction manual to end-user.
Heat Pump and Low Water Temperature Systems
In heating mode, the control system brings the fan on when the
water in the coil reaches 90°F. For low water temperature
systems, e.g. heat pump systems, it is possible to switch off the
boost speed option in automatic mode so that the unit runs in
medium or normal fan speeds depending on demand. This
means low outlet air temperatures from the unit are avoided
when the room temperature is low in relation to the set
temperature.
This facility can be switched on or off by following the instruction
below:
lIsolate electrical supply.
lRemove outer cover.
lChange switch 1 position according to requirements
(see fig. 3).
lRefit outer cover.
lSwitch on electrical supply.
Fan Pulse
Fan pulse mode causes room air to be drawn over the air
temperature sensor periodically to maintain room temperatures
more effectively. In certain circumstances, for example when
units are over-sized in relation to the heat loss of the room, it
may be necessary to turn off this function. Use dipswitch 3
according to requirements.
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.
The displayed temperature calibration function enables
calibration in heating mode of the displayed temperature to the
actual room temperature using the following procedure:
lPress the ‘On/Off’key and ‘+’key for 5 seconds (the display
will flash, alternating between ‘ro’and the calibration
temperature.
lCalibrate the displayed room temperature by using the
‘+’and ‘-’keys with the fan running.
lPress the ‘On/Off’key to finish.
lElectrical cable entry to the unit should be made at the
bottom left hand side of the unit.
lA hole is provided for BX or Romex connector.
lConnect supply to terminal block provided as per the wiring
diagram below.
8.0 Electrical Connection
WARNING: This appliance must be grounded. The electrical installation must comply with state and local
codes.
8.09.0
LN
Motor
Power Board
Control Board
Air Sensor
Water Sensor
O O
br
bl
y w bl br
Wiring diagram
y = Yellow
w = White
bl = Blue
br = Brown
Fig. 3
Switch Switch Down Switch Up
1 Auto Fan Speed Selection 2 Speed 3 Speed
2 Heating / Cooling Heating Heating & Cooling
3 Fan Pulse Off On
4 Temperature Display °F °C
27015 Slimline Manual US_Layout 1 19/12/2013 12:11 Page 7

07
SLIM-LINE RC
06 SLIM-LINE RC
9.0 Commissioning Procedure
lFill and vent the system.
lOpen both valves fully and vent air from the heat exchanger
by unscrewing the air bleed valve situated at the top of the
coil and accessible through the right hand side of the chassis.
lCheck for leaks at pipe connections.
lRefit the outer case and secure using the 2 fixing screws.
lSwitch on electrical supply.
lCheck the operation of the unit by following the operating
instructions.
lWhen installation and commissioning are complete, hand over
instruction manual to end-user.
Heat Pump and Low Water Temperature Systems
In heating mode, the control system brings the fan on when the
water in the coil reaches 90°F. For low water temperature
systems, e.g. heat pump systems, it is possible to switch off the
boost speed option in automatic mode so that the unit runs in
medium or normal fan speeds depending on demand. This
means low outlet air temperatures from the unit are avoided
when the room temperature is low in relation to the set
temperature.
This facility can be switched on or off by following the instruction
below:
lIsolate electrical supply.
lRemove outer cover.
lChange switch 1 position according to requirements
(see fig. 3).
lRefit outer cover.
lSwitch on electrical supply.
Fan Pulse
Fan pulse mode causes room air to be drawn over the air
temperature sensor periodically to maintain room temperatures
more effectively. In certain circumstances, for example when
units are over-sized in relation to the heat loss of the room, it
may be necessary to turn off this function. Use dipswitch 3
according to requirements.
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.
The displayed temperature calibration function enables
calibration in heating mode of the displayed temperature to the
actual room temperature using the following procedure:
lPress the ‘On/Off’key and ‘+’key for 5 seconds (the display
will flash, alternating between ‘ro’and the calibration
temperature.
lCalibrate the displayed room temperature by using the
‘+’and ‘-’keys with the fan running.
lPress the ‘On/Off’key to finish.
lElectrical cable entry to the unit should be made at the
bottom left hand side of the unit.
lA hole is provided for BX or Romex connector.
lConnect supply to terminal block provided as per the wiring
diagram below.
8.0 Electrical Connection
WARNING: This appliance must be grounded. The electrical installation must comply with state and local
codes.
8.09.0
LN
Motor
Power Board
Control Board
Air Sensor
Water Sensor
O O
br
bl
y w bl br
Wiring diagram
y = Yellow
w = White
bl = Blue
br = Brown
Fig. 3
Switch Switch Down Switch Up
1 Auto Fan Speed Selection 2 Speed 3 Speed
2 Heating / Cooling Heating Heating & Cooling
3 Fan Pulse Off On
4 Temperature Display °F °C
27015 Slimline Manual US_Layout 1 19/12/2013 12:11 Page 7

Test pressure: 290 psi
Max working pressure: 145 psi
Water connections: 1/2 inch compression
Electrical supply: 110V 60Hz
09
SLIM-LINE RC
08 SLIM-LINE RC
11.0 Operating Instructions
Description
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
59 - 95°F.
In manual mode the automatic temperature control is over
ridden and any of the three fan speeds can be operated
irrespective 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.
In manual mode, with water temperature control, any of the 3
fan speeds can be selected and the fan will operate when the
water temperature in the coil is greater than 90°F. This means
that heating performance can be controlled manually, and the
unit could be controlled via an external room thermostat.
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).
The remote control hand set takes 2 AAA batteries (not supplied).
10.0 Technical Data
Fig. 4 Fig. 5
Controls Display
Power button Switches unit on & off
‘+/-’ button Adjust temperature set point from
59 - 95°F
Scrolls into F1, F2, F3, A1, A2 or A3
manual mode.
Heating
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 90°F. Ensure the boiler is on, and set
timer, boiler controls and room thermostats as necessary.
10.0
11.0
Approximate Hydraulic Resistance through
Fan Convector
Noise levels in accordance with EN 23741
Fan
Setting
21.9
30.6
39.7
Normal
Medium
Boost
Sound Pressure at 2.5m (dBA)
Fan
Setting
Flowrate
GPM
Heat Output (Btu/h)
Entering Water Temperature (°F), Entering Air Temperature 65°F
1
3
186
127
97
186
127
97
Boost
Medium
Normal
Boost
Medium
Normal
110 120 130 140 150 160 170 180 190 200
Heating Performance Data
Air
Flowrate
CFM
5029 5663 6657 7661 8664 9668 10572 11678 12680 13864
4385 4881 5887 6745 7651 8559 9567 10374 11281 12186
3743 4207 5018 5829 6639 7450 8261 9072 9883 10694
6597 7404 8719 10034 11349 12663 13978 15293 16608 17923
5743 6457 7646 8831 10023 11411 12399 13588 14776 16280
4902 5510 6572 7634 8696 9758 10820 11882 12944 14005
3 11.04
1 1.84
GPM ft wg
27015 Slimline Manual US_Layout 1 19/12/2013 12:11 Page 9

Test pressure: 290 psi
Max working pressure: 145 psi
Water connections: 1/2 inch compression
Electrical supply: 110V 60Hz
09
SLIM-LINE RC
08 SLIM-LINE RC
11.0 Operating Instructions
Description
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
59 - 95°F.
In manual mode the automatic temperature control is over
ridden and any of the three fan speeds can be operated
irrespective 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.
In manual mode, with water temperature control, any of the 3
fan speeds can be selected and the fan will operate when the
water temperature in the coil is greater than 90°F. This means
that heating performance can be controlled manually, and the
unit could be controlled via an external room thermostat.
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).
The remote control hand set takes 2 AAA batteries (not supplied).
10.0 Technical Data
Fig. 4 Fig. 5
Controls Display
Power button Switches unit on & off
‘+/-’ button Adjust temperature set point from
59 - 95°F
Scrolls into F1, F2, F3, A1, A2 or A3
manual mode.
Heating
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 90°F. Ensure the boiler is on, and set
timer, boiler controls and room thermostats as necessary.
10.0
11.0
Approximate Hydraulic Resistance through
Fan Convector
Noise levels in accordance with EN 23741
Fan
Setting
21.9
30.6
39.7
Normal
Medium
Boost
Sound Pressure at 2.5m (dBA)
Fan
Setting
Flowrate
GPM
Heat Output (Btu/h)
Entering Water Temperature (°F), Entering Air Temperature 65°F
1
3
186
127
97
186
127
97
Boost
Medium
Normal
Boost
Medium
Normal
110 120 130 140 150 160 170 180 190 200
Heating Performance Data
Air
Flowrate
CFM
5029 5663 6657 7661 8664 9668 10572 11678 12680 13864
4385 4881 5887 6745 7651 8559 9567 10374 11281 12186
3743 4207 5018 5829 6639 7450 8261 9072 9883 10694
6597 7404 8719 10034 11349 12663 13978 15293 16608 17923
5743 6457 7646 8831 10023 11411 12399 13588 14776 16280
4902 5510 6572 7634 8696 9758 10820 11882 12944 14005
3 11.04
1 1.84
GPM ft wg
27015 Slimline Manual US_Layout 1 19/12/2013 12:11 Page 9

11
SLIM-LINE RC
10 SLIM-LINE RC
12.0 Troubleshooting (continued...)11.0 Operating Instructions (continued...)
11.012.0
13.0
Manual
Manual mode can be used for air circulation without heat or for
manual control of the heating function.
Use ‘+’ to scroll beyond 95°F
Or use ‘-’ to scroll below 59°F
Selected fan speed displayed
Continuous
fan only
Fan & water
temperature
(water inlet >90°F)
Scrolling back out of manual using the ‘+’ or ‘–’ button will revert
the unit back to last temperature set point.
Cooling Mode
lClose the heating system and isolate any other heat emitters.
lOpen the cooling water system.
lEnsure cooling is on, and set cooling unit timer and controls
as necessary.
Cooling operation works in exactly the same way as heating.
Follow the procedure above to set the unit controls.
Locking Unit Controls
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.
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.
To unlock the system press the On/Off button for about 6
seconds until the horizontal bars disappear.
12.0 Troubleshooting
Once installed this fan convector becomes part of a complete
heating system that generally will include 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. Before calling your installer or MYSON,
please carry out the checks listed opposite.
Operation Display
Power off No Display
Switch on supply to unit for 30 seconds
(unit off)
Supply on / unit off
Switch on unit Set point flashes for
approx 5 secs, then
Ambient temperature
displayed
Use ‘+/-’ to adjust Set point flashes for
set point approx 5 secs, then
Ambient temperature
The ambient temperature is always displayed unless the water
temperature falls below 110°F*, or if the set point is being
adjusted.
Water temp <110°F Shows both power
& unit on
*110°F in normal heating system, 90°F for heat pumps and above 68°F in cooling.
Common Installation Faults
For optimum performance, this unit must be correctly sized to
match the heat loss requirements of the space it is required to
heat, and the heating system must be correctly designed to
provide adequate flow of hot water to the unit (see Section 2).
If the recommendations in Section 2 are not followed, problems
may arise as detailed below.
Heating Mode -
No Fan
Heating Mode
(Heater model only)
poor heating
performance and/or
unit cycles on
water sensor
Possible Causes
Unit switched off
Temperature set point reached
Unit not switched on at breaker panel
Breaker tripped at panel
Unit isolating valves shut
Water temperature reaching fan
convector below 110°F
(Heater model only)
Problem Remedy
Low water temperature to unit Turn up boiler thermostat
Poor water flow Vent air from heating system
Turn on
Increase temperature set point
Switch on at breaker
Check all wiring and reset breaker
Open valves
Check boiler -
Programmer ON
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
water sensor
Possible Causes
Boiler thermostat set too low
Lack of flow to fan convector -
Pump set on low setting
Isolating valves not fully open
System incorrectly balanced with unit starved of hot water flow
Pipe sizing to unit too small
Problem
Poor heating performance
(Heater model only) Unit incorrectly sized for heat loss of room
13.0 Maintenance
Before undertaking any maintenance activity isolate the
electrical supply.
Maintenance should be restricted to occasional removal of dust
and lint around the unit. The outer surface may be wiped over
with warm water and mild detergent taking care to avoid water
entering the grille areas.
If the fan convector is still faulty after checking the above, call your installer or MYSON.
27015 Slimline Manual US_Layout 1 19/12/2013 12:11 Page 11

11
SLIM-LINE RC
10 SLIM-LINE RC
12.0 Troubleshooting (continued...)11.0 Operating Instructions (continued...)
11.012.0
13.0
Manual
Manual mode can be used for air circulation without heat or for
manual control of the heating function.
Use ‘+’ to scroll beyond 95°F
Or use ‘-’ to scroll below 59°F
Selected fan speed displayed
Continuous
fan only
Fan & water
temperature
(water inlet >90°F)
Scrolling back out of manual using the ‘+’ or ‘–’ button will revert
the unit back to last temperature set point.
Cooling Mode
lClose the heating system and isolate any other heat emitters.
lOpen the cooling water system.
lEnsure cooling is on, and set cooling unit timer and controls
as necessary.
Cooling operation works in exactly the same way as heating.
Follow the procedure above to set the unit controls.
Locking Unit Controls
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.
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.
To unlock the system press the On/Off button for about 6
seconds until the horizontal bars disappear.
12.0 Troubleshooting
Once installed this fan convector becomes part of a complete
heating system that generally will include 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. Before calling your installer or MYSON,
please carry out the checks listed opposite.
Operation Display
Power off No Display
Switch on supply to unit for 30 seconds
(unit off)
Supply on / unit off
Switch on unit Set point flashes for
approx 5 secs, then
Ambient temperature
displayed
Use ‘+/-’ to adjust Set point flashes for
set point approx 5 secs, then
Ambient temperature
The ambient temperature is always displayed unless the water
temperature falls below 110°F*, or if the set point is being
adjusted.
Water temp <110°F Shows both power
& unit on
*110°F in normal heating system, 90°F for heat pumps and above 68°F in cooling.
Common Installation Faults
For optimum performance, this unit must be correctly sized to
match the heat loss requirements of the space it is required to
heat, and the heating system must be correctly designed to
provide adequate flow of hot water to the unit (see Section 2).
If the recommendations in Section 2 are not followed, problems
may arise as detailed below.
Heating Mode -
No Fan
Heating Mode
(Heater model only)
poor heating
performance and/or
unit cycles on
water sensor
Possible Causes
Unit switched off
Temperature set point reached
Unit not switched on at breaker panel
Breaker tripped at panel
Unit isolating valves shut
Water temperature reaching fan
convector below 110°F
(Heater model only)
Problem Remedy
Low water temperature to unit Turn up boiler thermostat
Poor water flow Vent air from heating system
Turn on
Increase temperature set point
Switch on at breaker
Check all wiring and reset breaker
Open valves
Check boiler -
Programmer ON
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
water sensor
Possible Causes
Boiler thermostat set too low
Lack of flow to fan convector -
Pump set on low setting
Isolating valves not fully open
System incorrectly balanced with unit starved of hot water flow
Pipe sizing to unit too small
Problem
Poor heating performance
(Heater model only) Unit incorrectly sized for heat loss of room
13.0 Maintenance
Before undertaking any maintenance activity isolate the
electrical supply.
Maintenance should be restricted to occasional removal of dust
and lint around the unit. The outer surface may be wiped over
with warm water and mild detergent taking care to avoid water
entering the grille areas.
If the fan convector is still faulty after checking the above, call your installer or MYSON.
27015 Slimline Manual US_Layout 1 19/12/2013 12:11 Page 11

Installation, Operating, Maintenance
and After Sales Manual.
Product Serial Number:
Please leave this manual with the end user.
Part Number: 1371057
Issue 3
heatingthroughinnovation.heatingthroughinnovation.
SLIM-LINE RC
01.01.2014 ISSUE 3
Spare parts and technical help on all Convector products are available from MYSON Service.
MYSON INC 49 Hercules Drive, Suite 4904, Colchester VT0446
T: 802 654 7500, F: 802 654 7022, [email protected], www.mysoninc.com
Tested to UL & CSA Standards
27015 Slimline Manual US_Layout 1 19/12/2013 12:11 Page 1