The boiler is fitted with a special drain plug which is provided
to drain the BOILER ONLY in the event of the system drain
plug being unable to do so.
The hydraulic resistance of the boilers, at MAXIMUM OUTPUT
with an 11 °C (20°F) temperature differential, are shown in
Table 8.
THERMOSTATIC RADIATOR VALVES
Caradon Ideal Ltd. recommend that heating systems utilising
full thermostatic radiator valve control of temperature in
individual rooms should also be fitted with a room thermostat
controlling the temperature, in a space served by radiators not
fitted with such a valve - as stated in BS 5449.
When thermostatic radiator valves are used, the space heating
temperature control over living / dining area or hallway, having
a heating requirement of at least 10% of the boiler heat output,
should be achieved using a room thermostat whilst other
rooms are individually controlled by thermostatic radiator
valves. However, if the system employs thermostatic radiator
valves on all radiators then a bypass must be fitted to ensure a
flow of water should all the TRV's be in the closed position.
Table 8 - WATER FLOW RATE AND PRESSURE LOSS
Boiler Size RS 30 RS 40 RS 50 RS 60
Boiler output kW 8.8 11.7 14.7 17.6
Btu/h 30 000 40 000 50 000 60 000
Water flow l/min 11.4 15.2 19.0 22.8
rate gal/h 150 200 250 300
Pressure mbar 22.0 20.4 31.5 41.7
loss in w.g. 8.9 8.3 12 6 16.7
ELECTRICAL SUPPLY
Wiring external to the appliance MUST be in accordance with
the current 1. E. E. Wiring Regulations and any local
regulations which apply.
The boiler is supplied for 240 V ~ 50 Hz
Single Phase Fuse Rating is 3 A
The method of connection to the mains electricity supply
MUST facilitate complete electrical isolation of the boiler,
preferably by the use of a fused, unswitched three-pin plug
and a shuttered socket outlet, both complying with the
requirements of BS.1363. Alternatively, a fused double pole
switch, having at least a 3 mm (1/8 in.) contact separation in
both poles and servicing only the boiler, may be used.
The point of connection to the mains should be readily
accessible and adjacent to the boiler, except that for bathroom
installations, the point of connection to the mains MUST be
situated outside of the bathroom.
Note: Where a room sealed appliance is installed in a room
containing a bath or shower then the appliance and any
electrical switch or appliance control utilising mains electricity
should be so situated that it cannot be touched by a person
using the bath or shower.
Position of air vent Air from room/ Air direct
internal space from outside
HIGH LEVEL cm
2
170 85
(in
2
) (27) (14)
LOW LEVEL cm
2
170 85
(in
2
) (27) (14)
Position of air vent Air from room/ Air direct
internal space from outside
HIGH LEVEL cm
2
203 102
(in
2
) (32) (16)
LOW LEVEL cm
2
203 102
(in
2
) (32) (16)
WATER CIRCULATION SYSTEM
The boiler must NOT be used for direct hot water supply. For
the types of system and correct piping procedure see
'Introduction' and Frame 3.
Note: All water connections MUST be made to the boiler TOP
tappings.
The central heating system should be in accordance with
BS.6798 and, in addition, for Smallbore and Microbore
systems, BS.5449.
The domestic hot water system, if applicable, should be in
accordance with the relevant recommendations of BS.5546.
Copper tubing to BS.2871 :1 is recommended for water
carrying pipework.
The hot water storage cylinder MUST be of the indirect type
and should preferably be manufactured of copper.
Single-feed, indirect cylinders are not recommended and
MUST NOT be used on sealed systems.
The appliances are NOT suitable for gravity central heating
systems, with or without additional gravity domestic hot water
supply nor are they suitable for the provision of gravity
domestic hot water requirements above a 181.8 litre (40 gal)
tank capacity, depending on the model.
The hot water cylinder and ancillary pipework not forming part
of the useful heating surface should be lagged to prevent heat
loss and any possible freezing - particularly where pipes run
through roof spaces and ventilated underfloor spaces.
The boiler must be vented.
If venting cannot be done via a flow connection then a
separate vent MUST be fitted by the installer. This does NOT
mean that more than one open vent is required. Other parts of
the system, which may become unavoidably air locked, can be
automatically vented.
Draining taps MUST be located in accessible positions, which
permit the draining of the whole system - including the boiler
and hot water storage vessel. Draining taps should be at least
1/2in. BSP nominal size and be in accordance with BS.2879.
GENERAL
Table 7 - RS 60 AIR SUPPLY
Table 6 - RS 50 AIR SUPPLY
The boiler is supplied fully assembled in one pack ' A' together with one of four packs, B, B1, C and D, containing the flue terminal
appropriate to the wall thickness. Optional extras, if ordered (programmer kit, complete sealed system module and overheat
thermostat kit) are supplied in separate boxes.
PACK 'A' CONTENTS • Installation & Servicing Instructions HARDWARE PACK CONTENTS • Data plate indication
• Complete boiler • User's Instructions • No.14 x 50mm wood screws, • arrow, 1 off
• Wall mounting template • Hardware pack 3 off • Back panels to wall
• Wall mounting plate • Controls pod door • No.10 x 50mm wood screws, 3 off • sealing strip, 3 off
• Cover plate • Wall plug (TP2B - brown), 6 off
INSTALLATION
1 UNPACKING
UNPACKING - BOILER ASSEMBLY
AIR SUPPLY- ELECTRICAL SUPPLY
5
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