Myson LO-LINE RC 6-4 User manual

heatingthroughinnovation.
01.09.2007 ISSUE 1
After Sales Service:
RETTIG (UK) Ltd., Service, Somerden Road, Hull, East Yorks ire HU9 5PE
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MYSON Eastern Avenue, Team Valley, Gates ead, Tyne & Wear NE11 0PG, UK
T: 0845 402 3434, F: 0191 491 7568, [e-mail], www.myson.co.uk
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Installation, Operating, Maintenance
and After Sales Manual.
Product Serial Number:
Please leave this manual with the end user.
Part Number: 1370057
Issue 1
heatingthroughinnovation.
LO-LINE RC & LO-LINE RC Heater-cooler
Models: 6-4, 9-6, 14-10, 19-15
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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 Connections 06
9.0 Commissioning Procedure 07
10.0 Tec nical Data 08
11.0 Operating Instructions 09
12.0 Troubles ooting 10
13.0 Maintenance 11
Contents
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03
LO-LINE RC & LO-LINE RC Heater Cooler
1.0 General Information
2.0 Heating System Design
GThis MYSON LO-LINE fan convector is designed for wall
mounted installation with a minimum installation height of
150mm to the underside of the unit.
GThe LO-LINE should only be used on closed circulation, two
pipe, pump assisted central heating systems (LO-LINE) or
heating and cooling systems (LO-LINE Heater-Cooler).
GThe LO-LINE Heater and Heater-Cooler can be used on heat
pump systems.
GBefore 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.
GThis unit is supplied with an infra red remote control system,
giving automatic temperature control. Alternatively, the unit
can be run in manual, which allows manual switching between
the 3 fan speeds available to circulate ambient air.
This fan convector must be fitted on a two pipe, pumped
circulation heating system.
For optimum fan convector heating performance the system
must be capable of providing sufficient hot water through the
heat exchanger. This means that:
1. The minimum pipe size from boiler to fan convector must be
at least 15mm.
2. T is 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.
4. The system water must be above 43°C for heating mode.
5. For heat pump applications - see Commissioning Procedure
6. T is unit is NOT suitable for one-pipe systems.
7. Optimum performance will require effective balancing of
t e w ole system.
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.
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.
4.0 Location
GThis LO-LINE 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.
GThe minimum distance from the underside of the unit to floor
level is 150mm.
GThe unit should be mounted on a flat wall, and stud or
partition walls should be avoided to minimise the possibility
of noise transmission.
GFor cooling applications, the need for disposal of condensate
may influence the position of the unit.
1.02.0
3.0
4.0
This unit MUST NOT be installed in a bathroom or other similar high humidity area.
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04 LO-LINE RC & LO-LINE RC Heater Cooler
5.0 Preparation
Before proceeding with the installation, unpack the carton
contents and check against the checklist below:
1. LO-LINE or LO-LINE Heater-Cooler 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
GUsing the fixing dimensions (see fig. 1), mark the fixing hole
positions on the wall.
GDrill and plug the wall for No. 8 x 40mm round head wood
screws ensuring that the wall plugs are suitable for the wall
type.
GRemove the backing from the self-adhesive washers and place
on screws with adhesive side towards the point.
GTighten the screws into the wall leaving about 9mm
projecting.
GPress adhesive washers to the wall.
Remove the outer casing as follows:
GRemove the 2 screws from the underside of the unit (see fig. 2).
GLift off the outer case.
GFit chassis on to mounting screws and tighten.
Unit ABC
Dimensions (mm)
6-4 523 404 359
9-6 645 526 481
14-10 854 733 681
19-15 1138 1018 974
62 58 150
Min.
each
side
150 Min.
107
385
70
263
A
C
B
Fig. 1
Cover Fixing Screws
Fig. 2
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05
LO-LINE RC & LO-LINE RC Heater Cooler
7.0 Water Connections
GConnect unit to system flow and return pipes using the two
15mm isolating valves (see fig. 3).
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 LO-LINE installations pipe-work must not be routed
directly underneath the unit as this will adversely affect the
operation of the integral room thermostat. If t is cannot be
avoided, t e pipe-work must be boxed to prevent eat rise.
GEnsure system is flushed in accordance with recognised best
practice and a suitable inhibitor is added to the system as
necessary.
GOpen valves fully, check pipe connections for leaks and vent
the heat exchanger - see Commissioning Procedure.
LO-LINE Heater-Cooler installations with chilled water will
require provision for condensate disposal in accordance with any
local regulations.
A drain tray is fitted for condensate collection within the unit.
This should be connected to a 15mm drain pipe.
Note: External pipe-work carrying chilled water must be
insulated. Use a suitable sealant as necessary to ensure that
condensate does not spill or leak. Once connection to the
system flow and return pipes is made, any exposed internal
15mm pipework and isolating valves must be insulated.
57
99
68
191
72
99
57
Fig. 3
5.06.0
7.0
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06 LO-LINE RC & LO-LINE RC Heater Cooler
GThis unit is supplied with factory fitted test leads. Remove
these and discard.
GA 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.
GElectrical 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.
GConnect live and neutral wires to the power board terminal
connections, and the earth wire to the chassis earth terminal.
8.0 Electrical Connection
WARNING: This appliance must be earthed. The electrical installation must comply with local or national
wiring regulations.
O O
LN
Motor
Power Board
Control Board
Air Sensor
Water Sensor
O O
Brown
Blue
White
Yellow
Wiring Diagram
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07
LO-LINE RC & LO-LINE RC Heater Cooler
9.0 Commissioning Procedure
GFill and vent the system.
GOpen 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.
GCheck for leaks at pipe connections.
GRefit the outer case and secure using the 2 fixing screws.
GSwitch on electrical supply.
GCheck the operation of the unit in automatic and manual
modes (LO-LINE) or heating and cooling modes (LO-LINE
Heater-Cooler) by following the operating instructions.
GWhen installation and commissioning are complete, hand over
instruction manual to end-user.
Heat Pump Applications - Low Water Set Point
Adjustment Heating Mode
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 switch located on the control board.
GIsolate electrical supply.
GRemove outer cover.
GChange switch position (see fig. 4)
GRefit cover.
GSwitch on electrical supply.
Displayed Temperature Calibration
This function enables calibration of the displayed temperature
to the actual room temperature using the following procedure:
GPress the ‘On/Off’ key and ‘+’ key for 5 seconds (the display
will flash, alternating between ‘ro’ and the calibration
temperature.
GCalibrate the displayed room temperature by using the
‘+’ and ‘-’ keys.
GPress the ‘On/Off’ key to finish
Dipswitches
Fig. 4
Switch Switch Down Switch Up
1 Water Stat Set Point 32°C 43°C
2 Heating / Cooling Heating & Cooling Heating
3 Not Used
4 Temperature Display °F °C
8.09.0
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Tested in accordance with BS 4856 Part 1.
Flow rate 340 ltr/h (75 gal/h).
Flow Rate Correction Factors:
455 ltr/h (100 gal/h) multiply by 1.06.
227 ltr/h (50 gal/h) multiply by 0.96.
113 ltr/h (25 gal/h) multiply by 0.85.
08 LO-LINE RC & LO-LINE RC Heater Cooler
10.0 Tec nical Data
Heating Performance Data
Model Fan Speed
Heat Output watts
Temperature Difference °C
Heat Output Btu/h
Temperature Difference °F
3751 4197 4640 5081 5520 5957
3351 3748 4144 4538 4930 5321
2921 3268 3613 3956 4298 4639
2803 3136 3467 3796 4125 4451
2367 2648 2928 3206 3483 3759
1922 2150 2377 2603 2828 3052
1811 2026 2240 2453 2665 2875
1437 1608 1777 1945 2114 2282
1098 1228 1357 1486 1617 1743
1162 1300 1437 1574 1710 1845
843 943 1043 1142 1240 1339
741 829 916 1003 1090 1176
Boost
Medium
Low
Boost
Medium
Low
Boost
Medium
Low
Boost
Medium
Low
19-15
14-10
9-6
6-4
12803 14323 15836 17340 18839 20331
11436 12783 14144 15488 16826 18159
9970 11154 12331 13503 14670 15832
9567 10703 11833 12957 14077 15192
8080 9039 9993 10943 11889 12831
6559 7338 8113 8884 9652 10416
6182 6916 7645 8372 9096 9816
4904 5486 6066 6642 7216 7788
3748 4191 4633 5073 5519 5948
3965 4436 4905 5371 5836 6297
2877 3218 3558 3896 4233 4568
2528 2829 3127 3424 3720 4015
40° 45° 50° 55° 60° 65° 72° 1° 90° 99° 10 ° 117°
Cooling Performance Data
Noise Levels
Model Fan Speed
Cooling Performance watts
Air-Mean Water Temperature Difference °C
Cooling Performance Btu/h
Air-Mean Water Temperature Difference °F
1533 1305 2291 1656 3128 1725
1464 1203 2187 1511 2987 1632
1340 1104 2002 1345 2734 1452
1228 1052 1835 1347 2505 1427
1032 878 1542 1113 2106 1159
877 754 1310 969 1788 1034
710 581 1061 770 1448 957
600 507 896 639 1223 655
499 423 745 535 1018 553
496 397 741 526 1012 654
391 335 585 429 798 454
321 277 480 357 655 383
Boost
Medium
Low
Boost
Medium
Low
Boost
Medium
Low
Boost
Medium
Low
19-15
14-10
9-6
6-4
5231 4453 7817 5650 10673 5886
4995 4105 7462 5156 10192 5568
4572 3767 6831 4589 9328 4954
4190 3589 6261 4596 8547 4869
3521 2996 5261 3798 7186 3955
2992 2573 4470 3306 6101 3528
2423 1982 3620 2627 4941 3265
2047 1730 3057 2180 4173 2235
1703 1443 2542 1825 3473 1887
1692 1355 2528 1795 3453 2231
1334 1143 1996 1464 2723 1549
1095 945 1638 1218 2235 1307
Tot. Sens. Tot. Sens. Tot. Sens.
15° 20° 25° 27° 36° 45°
Tot. Sens. Tot. Sens. Tot. Sens.
Tested in accordance with BS 4856 Part 1. Flow rate 340 ltr/h. Relative humidity 50%.
Model Sound Pressures at 2.5m (dBA)
19-15
14-10
9-6
6-4
Low Medium Boost
Weig t, Water Content and Motor Power
Model Motor
Power (W)
Water
Content (l)
Unpacked
Weight (kg)
19-15 80 0.3 7.7
14-10 62 0.32 9.1
9-6 35 0.56 12.7
6-4 35 0.75 15.7
Test Pressure 20bar (2MPa) Maximum Working Pressure 10bar
Water connections 15mm Electrical supply 230V - 50Hz
Approximate Hydraulic Resistance t roug Fan Convectors
Litres/h 6 - 4
910
514
235
47
9 - 6
998
520
121
97
14 -10
1240
719
324
75
19 -15
1670
954
469
77
6 - 4
8.98
5.06
2.35
0.45
9 - 6
9.85
5.10
1.18
0.97
14 -10
12.20
7.00
3.20
0.75
19 -15
16.40
9.40
4.60
0.82
455
340
227
113
mm wg kPa
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09
LO-LINE RC & LO-LINE RC Heater Cooler
11.0 Operating Instructions
Description
This LO-LINE 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.
In manual mode any of the three fan speeds can be selected by
overriding the automatic temperature control. This means that
air circulation can be provided in summer for example, or that
heating performance can be controlled manually.
The unit can be controlled using the infra red remote control
handset supplied with the unit (see fig.5) and also using the
control panel on the unit (see fig. 6). If necessary, however, the
control panel can be locked electronically to prevent tampering
once the controls have been set (see below).
The remote control hand set takes 2 AAA batteries (not supplied).
Fig. 5 Fig. 6
Controls Display
Power button Switches unit on & off
‘+/-’ button Adjust temperature set point from
15 - 35°C
Scrolls into F1, F2 or F3 manual mode
Heating
Heating will only be provided 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.
10.011.0
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Manual
Manual mode can be used for air circulation without heat.
Use ‘+’ to scroll Selected fan speed
beyond 35°C displayed
Or use ‘-’ to scroll
below 15°C
Scrolling back out of manual using the ‘+’ or ‘ ’ button will revert
the unit back to last temperature set point.
Cooling Mode
GClose the heating system and isolate any other heat emitters.
GOpen the cooling water system.
GEnsure 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.
10 LO-LINE RC & LO-LINE RC Heater Cooler
12.0 Troubles ooting
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.
11.0 Operating Instructions (continued...)
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
5 secs, then
Ambient temperature
displayed
Use ‘+/-’ to adjust Set point flashes for
set point 5 secs, then
Ambient temperature
The ambient temperature is always displayed unless the water
temperature falls below 43°C*, or if the set point is being
adjusted.
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.
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11
LO-LINE RC & LO-LINE RC Heater Cooler
12.0 Troubles ooting (continued...)
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 (refer to 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 fused spur
Fuse blown at fused spur
Unit isolating valves shut
Water temperature reaching fan
convector below 43°C
(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 spur
Replace fuse
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 Service.
11.0
12.013.0
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