ACV HeatMaster 100 N User manual

20
SERVICE INTERVALS
ACV recommends that boilers should be serviced at least once a year.
The burner must be serviced and tested by a competent engineer.
If a boiler is subject to heavy use, it may require servicing more than
once a year - consult ACV for advice.
SERVICING THE BOILER
1. Turn OFF the on/off switch on the boiler control panel and isolate
external electrical supply.
2. Turn off the gas or oil supply to the boiler.
3. Remove the flue to gain access to the top of the boiler.
4. Remove the casing top panel and lift off the flue reduction collar
by undoing the fastening bolts.
5. Remove the turbulators from the flue pipes for cleaning.
6. Unscrew the burner chamber plate and remove the burner.
7. Brush the flue pipes .
8. Clean the burner chamber and the burner.
9. Re-assemble turbulators, flue reduction collar and flue, checking
that the gasket on the flue reduction collar is in good condition.
Replace gasket if necessary.
MAINTENANCE
Casing top panel
Chimney flue
Flue reduction collar
Burner chamber
Burner chamber plate Flue pipe and turbulators

21
MAINTENANCE
SERVICING THE SAFETY DEVICES
- Check that all thermostats and safety devices are working properly.
- Test the safety valves on the central heating and hot water circuits.
SERVICING THE BURNER
Oil burner
-Check and if necessary clean the main filter on the oil line.
-Check the alignment of the nozzle: check, clean or change the
nozzle and its filter, check that the electrodes and flame holder
are clean and correctly adjusted.
-Reassemble and check that the safety components are working
properly.
-Set the combustion parameters.
-Check the combustion (CO2, CO and burner pressure) and record
the values and any remarks in the Service Record on page 24.
Gas burner
-Check that the insulation and gasket on the burner chamber plate
are in good condition - replace if necessary.
-Check and clean the burner and electrodes.Replace electrodes if
necessary (under normal use once a year).
-Check that the safety components are working properly.
-Check the combustion (CO2, CO and gas pressure) and record
the values and any remarks in the Service Record on page 24.
DRAINING THE BOILER
Water flowing out of the drain cock may be
extremely hot and could cause severe scalding.
Keep people away from discharges of hot
water.
Draining the heating circuit
1. Turn OFF the on/off switch on the boiler control panel, isolate
external electrical supply, and turn off the gas or oil supply to the
boiler.
2. Close the isolating valves (4).
3. Connect a hose to the drain cock (7).
4. Open the drain cock to drain the primary circuit.
Draining the hot water circuit
1. Turn OFF the on/off switch on the boiler control panel, isolate
external electrical supply, and turn off the gas or oil supply to the
boiler.
2. Release the pressure in the heating circuit until the pressure
gauge indicates zero bar.
3. Close stop cock (1) and turn off tap (8).
4. Open valve (9) then valve (10) (first 9 then 10).
5. Let the water empty into the drain.
For the tank to be emptied, valve (9) must be situated
at ground level.
SPARE PARTS
Plese refer to the specific document available from ACV or your
distributor.
123
4
5
26
7
8
9
10
11
I
O
14 2
6
4
3
5
8
I
O
7

22
USER GUIDE
USING THE BOILER
Your system should be serviced at least once a year
by a qualified engineer.
If the boiler is subject to heavy use, it may require
servicing more than once a year - consult your service
engineer for advice.
Starting the burner:
In normal operation, the burner starts automatically
whenever the boiler temperature falls below the set
temperature.
Understanding the control panel
There are no user parts inside the control panel.
1. On/Off switch
This turns the HeatMaster on or off.
2. Control thermostat - 60 to 90 °C
When using the HeatMaster as a hot water generator only, the
temperature can be set between 60 °C and 90 °C.
If the HeatMaster is used for both hot water and central heating, the
control thermostat would normally be set at 80 °C to achieve optimum
operating conditions.
3. Summer/Winter switch
This turns the heating pump (if fitted) on or off.
4. Manual reset high limit thermostat
If the boiler temperature exceeds 103 °C this safety device will
activate and the high temperature indicator will light up. To reset -
first allow the boiler to cool to below 60 °C, unscrew the cap and
press the reset button using a pencil or similar pointed device,
replace the cap. If the fault persists, turn the boiler off and call an
engineer.
5.Time clock
This allows the HeatMaster to be timed on and off and operates on
a 24 hour sequence. Around the outside of the clock there are a
number of white tabs, these allow 15 minute switching periods. To
set the time clock simply push outwards the number of tabs required
for ON period.
Remember: TAB IN = HeatMaster OFF
TAB OUT = HeatMaster ON
6.Temperature and pressure gauge
This gauge indicates both the temperature of the HeatMaster and
the pressure within the primary circuit.
The temperature should not exceed 90 °C - if it does, switch the
boiler off and check the thermostat setting. If the fault persists, call
an engineer.
The pressure should not fall below 1bar, if it does the please see the
'Heating System Pressure' paragraph later in this section.
7. Low primary water pressure indicator
If this indicator lights up, the primary circuit of the HeatMaster requires
topping up with water. Please see the 'Heating System Pressure'
paragraph later in this section.
Control panel HeatMaster 60 N
I
O
Manual reset high
limit thermostat
Burner
lockout
indicator
Combined temperature
and pressure gauge
Time clock
Control
thermostat ON / OFF
switch
Primary circuit low
water pressure
indicator
High limit cutoff
indicator Summer / Winter switch
bar
1
8
1
7
1
6
1
5
1
4
1
3
1
2
1
1
1
0
9
8
7
6
5
4
3
2
1
2
4
2
3
2
2
2
1
2
0
1
9
GRASSLINGRASSLIN
I
O
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
Servicing socket
(230 V ˜ 50 Hz)
Fuse
Control thermostat
Relay base
Time clock
Combined temperature
and pressure gauge
Thermal reset high
limit thermostat
ON / OFF switch
Manual reset high
limit thermostat
Primary circuit low
water pressure indicator
Mains power
electrical connection
(multi-pin plug)
Control panel HeatMaster 150 Jumbo
I
O
Manual reset high
limit thermostat
Burner
lockout
indicator
Combined temperature
and pressure gauge
Time clock
Control
thermostat ON / OFF
switch
Primary circuit low
water pressure
indicator
Summer / Winter switch
High limit cutoff
indicator
Control panel HeatMaster 70 N and HeatMaster 100 N

B
A
HeatMaster 150 Jumbo
23
USER GUIDE
Heating system pressure
From time to time you may need to top up the heating
system pressure.This pressure is indicated by the combined
temperature and pressure gauge on the boiler control
panel.
The minimum pressure when the boiler is cold should be
1 bar.The precise operating pressure required depends on
the height of the building, and your installer will have
informed you of this value at the time of installation (see
Commissioning Section - Filling the hot water and heating circuits).
If the pressure falls below 1 bar, the boiler water pressure
switch will turn the boiler off until pressure is restored.
To re-pressurise, the system needs to be topped up with
water.
First, switch the boiler OFF on the on/off switch and isolate
the external electrical supply. Then remove the casing top
front panel by pulling it forward. The filling valves “A” and
“B” can now be seen. Open both valves and allow the
system to fill. When the combined temperature and
pressure gauge shows the required pressure, close both
valves. Replace the casing top front panel. Restore the
power supply and switch the boiler on.
Safety Valves
If water discharges from any of the safety valves, switch the boiler
off and call a service engineer.
B
A
HeatMaster 70 N and 100 N
B
A
HeatMaster 60 N

24
USER GUIDE
RESETTING THE PRESSURE JET OIL OR GAS
BURNER
• HM 60 N and HM Jumbo 150
➠the lockout indicator is situated on the burner.
• HM 70 N and 100 N
➠the lockout indicator is situated on the burner and on the
control panel.
The red warning light indicates an operating fault.Wait five minutes
before resetting the burner.To reset : press the button located on the
burner.
If the burner does not relight, call the service engineer after ensuring
that the fault is not due to a power cut or low oil in the tank.
RESETTING THE BG 2000-S PREMIX GAS BURNER
• HM 60 N BG 2000-S/60
➠the lockout indicator is situated on the burner.
• HM 70 N BG 2000-S/70 and HM 100 N BG 2000-S/100
➠the lockout indicator is situated on the burner and on the
control panel.
1. Remove the burner cover.
2. Press the red button to restart the burner.
3. If the burner lights, replace the cover.
4. If the fault persists, call a service engineer.
BURNER TROUBLESHOOTING
For all burners - please refer to the relevant servicing and
troubleshooting instructions in your burner's technical manual.

25
SERVICE RECORD
Date installed :
% CO2(min. load) :
% CO2(max. load) :
Gas LPG
Oil
Model :
Serial number :
Heating system pressure setting :
❏❏
❏Name and signature :
Flue gas T° :
Efficiency :
Gas pressure :
INSTALLATION DETAILS
Date serviced :
% CO2(min. load) :
% CO2(max. load) :
Gas LPG
Oil
Remarks :
❏❏
❏Name and signature :
Flue gas T° :
Efficiency :
Gas pressure :
SERVICE RECORD
Date serviced :
% CO2(min. load) :
% CO2(max. load) :
Gas LPG
Oil
Remarks :
❏❏
❏Name and signature :
Flue gas T° :
Efficiency :
Gas pressure :
Date serviced :
% CO2(min. load) :
% CO2(max. load) :
Gas LPG
Oil
Remarks :
❏❏
❏Name and signature :
Flue gas T° :
Efficiency :
Gas pressure :
Date serviced :
% CO2(min. load) :
% CO2(max. load) :
Gas LPG
Oil
Remarks :
❏❏
❏Name and signature :
Flue gas T° :
Efficiency :
Gas pressure :
Date serviced :
% CO2(min. load) :
% CO2(max. load) :
Gas LPG
Oil
Remarks :
❏❏
❏Name and signature :
Flue gas T° :
Efficiency :
Gas pressure :

26
SERVICE RECORD
Date serviced :
% CO2(min. load) :
% CO2(max. load) :
Gas LPG
Oil
Remarks :
❏❏
❏Name and signature :
Flue gas T° :
Efficiency :
Gas pressure :
Date serviced :
% CO2(min. load) :
% CO2(max. load) :
Gas LPG
Oil
Remarks :
❏❏
❏Name and signature :
Flue gas T° :
Efficiency :
Gas pressure :
Date serviced :
% CO2(min. load) :
% CO2(max. load) :
Gas LPG
Oil
Remarks :
❏❏
❏Name and signature :
Flue gas T° :
Efficiency :
Gas pressure :
Date serviced :
% CO2(min. load) :
% CO2(max. load) :
Gas LPG
Oil
Remarks :
❏❏
❏Name and signature :
Flue gas T° :
Efficiency :
Gas pressure :
Date serviced :
% CO2(min. load) :
% CO2(max. load) :
Gas LPG
Oil
Remarks :
❏❏
❏Name and signature :
Flue gas T° :
Efficiency :
Gas pressure :
Date serviced :
% CO2(min. load) :
% CO2(max. load) :
Gas LPG
Oil
Remarks :
❏❏
❏Name and signature :
Flue gas T° :
Efficiency :
Gas pressure :

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