Potterton Promax System He Plus User Manual
Fits a suitable protection device to the system controls if required. For frost protection the boiler must be turned on. 2.4 In Operation 1. The Potterton Promax 15 HE and 24 HE are high efficiency condensing boilers. In common with other condensing boilers its exceptional efficiency means. View online User's manual and important warranty information for Potterton Promax System HE Plus A Range Boiler or simply click Download button to examine the Potterton Promax System HE Plus A Range guidelines offline on your desktop or laptop computer. Baxi Potterton Promax Combi HE Plus A Range G.C.No 47 393 23 User Manual. 0 appliance operation. Baxi Potterton Water boiler. Baxi Potterton Promax Combi HE Plus A Range G.C.No 47 393 23 User Manual Page 9. If the system temperature falls below 5° C then the boiler will fire on its minimum setting until a flow. Potterton Boiler Manuals. At Direct Heating Spares we offer a wide range of Potterton boiler parts, This page contains links to all of the free Potterton boiler manuals we have on our system. Just click on the model or the Gas council number and the manual will download at the bottom of the page. After you have downloaded the manual double click on the download for the manual to open, if you want to save the download right click. If you require the user manual click through the link above and then proceed the same.
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3.0 Appliance Operation
© Baxi Heating UK Ltd 2013
3.1
Central Heating Mode (Fig. 2)
1. With a demand for heating, the pump circulates water
through the primary circuit.
2. Once main burner ignites the fan speed controls the gas
rate to maintain the heating temperature measured by the
temperature sensor.
3. When the flow temperature exceeds the setting
temperature, a 3 minute delay occurs before the burner
relights automatically (anti-cycling). The pump continues to
run during this period.
4. When the demand is satisfied the burner is extinguished
and the pump continues to run for a period of 3 minutes
(Pump Overrun).
3.2
Domestic Hot Water Mode (Fig. 3)
1. Priority is given to the domestic hot water supply. A
demand at a tap or shower will override any central heating
requirement.
2. The flow of water will operate the Hall Effect Sensor
which requests the 3 way valve to change position. This will
allow the pump to circulate the primary water through the
DHW plate heat exchanger.
3. The burner will light automatically and the temperature of
the domestic hot water is controlled by the temperature
sensor.
4. When the domestic hot water demand ceases the burner
will extinguish and the diverter valve will remain in the
domestic hot water mode, unless there is a demand for
central heating.
IMPORTANT: When the selector switch is in the ‘0’
(Off) position the electrical supply to the boiler is isolated.
The boiler will not operate and the integral timer will
require resetting once the selector switch is set to either
Position (i) or Position (ii).
3.3
Frost Protection Mode
1. The frost protection mode is integral to the appliance and
functions only with the selector switch (see Section 2.1) in
the domestic hot water and central heating position. If the
system temperature falls below 5° C then the boiler will fire
on its minimum setting until a flow temperature of 30° C is
reached. Further protection can be incorporated by using a
system frost thermostat.
3.4
Pump Protection
1. With the selector switch (see Section 2.1) in either the
central heating or central heating and domestic hot water
position, the pump will automatically operate for 1 minute in
every 24 hours to prevent sticking.
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5 6
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1
Primary Heat Exchanger
2
Burner
3
Ignition Electrodes
4
Flame Sensing Electrode
5
Gas Valve
6
Pump
7
Automatic Air Vent
8
Plate Heat Exchanger/Automatic By-pass
9
Flow Sensor with Filter & Regulator
10 Pressure Relief Valve
11 Boiler Drain Point
12 Heating Return
13 Cold Water Inlet On/Off Valve and Filter
14 Gas Inlet
15 Domestic Hot Water Outlet
16 Heating Flow
17 Pressure Gauge
18 Water Pressure Sensor
20 Fan
21 Diverter Valve Assembly
22 Diverter Valve Motor
23 Domestic Hot Water Flow Temperature Sensor
24 Safety Thermostat
25 Central Heating Temperature Sensor
26 Expansion Vessel
Key
Central Heating Circuit
Domestic Hot Water Circuit
Fig. 3
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5 6
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Fig. 2
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Promax Combi HE Plus A Range G.C.No 47 393 21, Promax Combi HE Plus A Range G.C.No 47 393 22
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© Baxi Heating UK Ltd 2013
8.0 Flue Options
Horizontal
Flues
(ii)
(i)
Plume Displacement Kit 60 /100 Ø
1M Extensions, 45° & 93° bends are
also available - see Section 9.0
(ii)
(i)
This bend is equivalent to
1 metre
Total equivalent length =
A+B+C+2x90°Bends
B
A
C
This bend is equivalent to
1 metre
8.1
Horizontal Flue Systems
1. The standard flue is suitable only for horizontal termination
applications.
Potterton Promax System 24 He Plus Manual
2. All fittings should be fully engaged. The approximate
engagement is 40mm. Apply soap solution to the seal on
each fitting to aid assembly.
3. Maximum permissible equivalent flue lengths are:-
(60/100)
(80/125)
Horizontal Concentric
10 metres
20 metres
4. Any additional “in line” bends in the flue system must be
taken into consideration.
Their equivalent lengths are:-
Concentric Pipes:
135° bend
0.5 metres
93° bend
1.0 metres
Twin Flue Pipe
135° bend
0.25 metres
91.5° bend
0.50 metres
4. The elbow connected to the boiler adaptor is not included
in any equivalent length calculations.
5. The illustrations opposite show examples of permissible
flue systems.
NOTE: Flue length is measured from point (i) to (ii) as
shown.
IMPORTANT: All flue systems must be securely
supported at least once every metre. Suitable pipe
supports are available as accessories.
NOTE: Horizontal flue pipes should always be installed with a fall of at least 1.5°
from the terminal to allow condensate to run back to the boiler.