7
GB-
INSTALLATION
12. System types
The ‘Slim Jim’ range of boilers can be used in various system
designs. Please refer to The Electric Heating Company for more
details on under floor heating requirements. We are able to
supply a ‘Slim Jim’ Heat Pack that contains the relevant control
valves, cylinder and room thermostats required to configure
an ‘S’ plan heating system. The heat pack has all the necessary
components that you need to connect the systems controls and
plumbing configurations for ‘S’ Plan design.
We recommend the use of thermostatic radiator valves on all
radiators except in the room that has the wall room thermostat
fitted. This radiator should be fitted with lock shield valves and
left in the fully open position.
In addition we recommend that an automatic bypass is fitted
within this circuit and set to the relevant settings to allow the
minimum flow rates to pass through the boiler (8 l/min) when
all radiator thermostats close.
Allowance should be made for a minimum size radiator of
600mm x 600mm single convector or equal to 2500 Btu to be
installed within the heating circuit and locked open. This will
be located in the room that has the room thermostat installed.
System should be designed to meet the current building regula-
tions in force at the current time.
13. Hanging the Boiler
1. Hang the boiler in a vertical position on the fixing points and
screws provided, with the flow and return connections as
identified in Figure 1 maintaining the clearances as identified
in the Location section of this manual (page 3)
2. Connect the boiler to a heating system that is equipped
with isolation valves (see Figures 4 & 5)
3. Fill the heating system with treated water, which will
substantially extend the life of the heating coils. See item
14 ‘System Protection’ below.
4. Connect the boiler system to the UK domestic ‘mains’
electrical system as per the ‘Electrical Installation’ section
using conductors sizes as recommended in ‘THE TECHNI-
CAL SPECIFICATION’ at the end of this manual.
5. Connect the Room Thermostat & Programmer and all
other required electrical connections as per the ‘ELEC-
TRICAL CONNECTIONS & CONTROL’ section of this
manual.
14. System Protection
Failure to protect the system will invalidate the manufacturer’s
warranty.
After the system has been installed the cleansing and inhibiting
procedure must be carried out as follows: -
Procedure:
1. Fill the system with cold mains water to the recommended
pressure 1.5 bar and check for leaks, then drain the system
thoroughly making sure all drain cocks are fully open and
that the system is completely drained.
2. Add Fernox Heavy Duty restorer through the header tank
or via filling loop at the recommended dose. One bottle
must be used as a minimum per dwelling. If you are unsure
of the correct dose rate, contact Fernox.
3. Re-fill the system and circulate the Heavy-Duty Restorer
prior to the boiler being fired up, then commission the
system in the normal way. The cleansing agent must be
in the system for a minimum 1 hour with the system at
normal operating temperature. A longer period of time
would be more beneficial to the cleansing process espe-
cially if excess flux was used.
4. Drain and flush the system thoroughly to remove the
cleaning agent and any debris or contaminant. This is a
critical part of the cleaning process and must be carried out
correctly. Use a rinse test meter (TDS), such as the Fernox
CTM. The reading must be within 10% of the mains ppm
value.
5. Then add the Fernox Protector (Copal MB1 or Super
concentrate). This will protect against the formation of
scale, corrosion and microbiological growths. It is cru-
cial however, that for the protector to work correctly, the
system must be properly cleansed and flushed.
6. The label included within the Fernox Protector carton
should be completed and attached adjacent to the boiler
7. We recommend inhibitor levels are checked on an annual
basis (usually during the service) or sooner if the system
content is lost. This should be carried out using a Fernox
inhibitor Test Kit
15. Start-up / Commissioning
1. Turn ‘mains’ power on at main Isolating Switch.
2. Make sure that all external controls are (off) not calling
for heat at this stage.
3. Switch the boiler on by pressing the Power button on the
Front Control Panel – see figure 9.
4. Check to see that the correct installation water pressure
is approx (1.0/1.5 bar) and correct as necessary. (Sealed
Systems).
5. Vent the heating circuit and the externally fitted Pump
according to the manufactures installation instructions.
6. Make sure the system water pressure is maintained at
the correct pressure while venting the system. Continue
venting until a continuous stream of water is evident at
all radiators and the pump.
7. Top up system and re-tighten all vent screw points.
8. Turn on external controls to call for heat.
9. Set the temperature of the boiler to your desired tempera-
ture (normally 65
0
C).
Summary of Contents for SlimJim
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