Hounsfield Boilers Tuscan 12-19 User manual

HANDBOOK AND SERVICE LOG
MODEL
12/19
20/25
26/30
50/70
75/95
BOILER SERIAL NUMBER:

Warranty registration
Your boiler is guaranteed for five years, we have an industry leading “no-quibble” policy
which covers with the exception of service items.
For heat exchanger replacement after the warranty period, we have a discounted
pricing structure based on age, the full cost being charged in year eleven.
Terms and conditions of warranty
We use the very best materials and engineering practice in the construction of our
boilers, your boiler will provide many years service.
Properly engineered product doesn’t require reams of small print to and get out
clauses, our terms and conditions very concise:
1. Register the boiler with Hounsfield Boilers Ltd. You can do this on-line via our
web site or by returning the registration form enclosed with the boiler
documentation.
2. Ensure your boiler is serviced annually and keep records
3. Warranty work must be authorised by Hounsfield boilers Ltd.

Dear Home owner
Thank you for investing in a Hounsfield Boiler, we know you’ll be pleased with
your new purchase.
Please familiarise yourself with the controls and operation of your boiler set out in
this document.
Please ensure your boiler warranty is registered with Hounsfield Boilers Ltd. Our
warranty is industry leading, however we do ask that you follow our the terms and
conditions.
Our best sales generator is “word of mouth” please pass the additional brochure
supplied with your boiler to a friend or neighbour.
Kind regards
Andrew Hounsfield
[email protected]
T:01449 722461

Control thermostat
Controls the temperature of water within the boiler. For condensing boilers the temperature
is preset to a maximum 70⁰C, for non-condensing boilers 80⁰C. A lower set point will increase
boiler efficiency and in turn reduce fuel consumption.
Power neon
The green neon is illuminated when the heating system is switched on, via a room
thermostat or the domestic hot water cylinder thermostat.
Limit neon and limit reset button
The red neon is illuminated when the boiler has over heated. To reset wait for the boiler to
cool down, then press the reset button.
Lockout neon and lockout reset button
The amber neon is illuminated when burner ignition has failed, this is a safety feature. To
reset the burner, wait for two minutes then press the burner reset button.
Burner
reset
button
Vent
port
Priming the burner if you run out of oil
Use the 4 mm allen key located inside the boiler casing. Slacken the vent port plug, do not
remove it. Press the reset button, the firing sequence will commence, gradually open the
vent plug to purge air from the oil line. If ignition fails after a few attempts call your
service engineer, the injector nozzle probably needs replacing.
USER INFORMATION
Lockout Limit
Limit reset
Control
thermostat
Power

This section provides information for service engineers. Our burners are at the
forefront of burner technology, under no circumstances should any adjustments
be made without an electronic combustion analyser and associated equipment
and essentially the competence of a qualified professional.
WARNING
1. Burners are factory set and test fired, but will require commissioning after
installation.
2. A setting gauge is supplied with every boiler to check critical dimensions.
3. To change the factory set output a different gauge is required - see table.
DIFFUSER SETTING
- NOZZLE FACE TO REAR OF DIFFUSER
HEAD SETTING
HEAD ADJUSTMENT
SERVICE ENGINEER’S INFORMATION
SETTING GAUGE
16KW
BOILER MODEL 12/19
HEAD SETTING
DIFFUSER SETTING
ELECTRODE GAP 2 MM
(ENSURE ELECTRODES
ARE CENTRAL TO THE APERTURE)
FACTORY SET SHOULD NOT
REQUIRE ADJUSTMENT
WARNING
GAUGE FITS IN SLOT
CONTACT NOZZLE FACE
DIFFUSER

*FACTORY SETTING ** LABORATORY TEST RESULTS
BOILER MODEL 12/19 CONDENSING 20/25 CONDENSING 26/30 CONDENSING 50/70 NON CONDENSING 75/95 NON CONDENSING
OUTPUT
K/W 12 14 16*19 20 23*25 26 28*30 14 18*20 22 25*28
BTU/HR. 41000 480000 55000 65000 68000 78000 85000 89000 96000 102000 48000 55000 70,000 75000 85000 95000
NOZZLE DANFOSS 0.40/
80EH
0.40/80
o EH
0.45/
80o EH
0.55/80
oEH
0.6/80o
EH
0.65/80
oEH
0.75/80
oEH
0.75/80
oEH
0.75/80
oEH
0.85/80
oEH
0.45/
80o EH
0.55/80o
EH
0.6/80o
EH
0.65/80
oEH
0.75/80
oEH
0.85/80
oEH
OIL
PRESSURE
BAR 7 8 8 8 8 8.5 7.5 8 9 8.5 8 8 8 9 9 8.5
PSI 100 115 115 115 110 120 105 115 135 120 115 115 115 130 115 115
FIRING RATE kg/h ±4% 1.02 1.22 1.38 1.64 1.73 1.98 2.14 2.24 2.43 2.56 1.26 1.43 1.7 1.94 2.24 2.5
SETTING GAUGE PT.NO. BS0070 BS0071 BS0072 BS0073 BS0074 BS0075 BS0076 BS0077 BS0078 BS0079 BS0080 BS0081 BS0082 BS0083 BS0084 BS0085
HEAD SETTING ± 0.1 MM 25.5 26.5 28 29.5 31.5 32 33 36 35.8 36 27 28 29.5 31.5 34.5 36.7
DIFFUSER SETTING ± 0.1 MM 2 2 2 2 2 2 2 3 3 3 2 2 2 3 3 3
NOMINAL AIR SETTING 1 1.2 1.6 2.3 2.5 2.8 3.2 5 6 6.5 2 2.5 2.8 4 4.5 5.5
SMOKE NO. 0 0 0 0 0
CO2% 11.5 11.5 11.5 11.5 11.5
CO (PPM) ** 10.5 9.7 8 7.5 9 8.5 8 7 9.5 9 8.7 7 6 8.4 6.8 5.8
NOx (PPM)** 59.2 58 58.2 57.6 59.7 60.1 61 63 56.7 57.5 57.6 58 59 57 56.4 61
NOx to ERP calcs. (mg/kWh))** 106.8 105.2 104.7 103.6 102.4 104.3 109.7 111 109 109 107 109 109 108 107 112
FAN PRESSURE 2.3 2.3 2.25 2.25 2.2 2.5 2.6 3.6 3.8 3.6 3.2 3.3 3.6 3 3.3 3.6
ELECTRIC ABSORBED (W)** 131 130 130 129 128 129 134 170 165 160 160 162 165 165 162 165
EFFICIENCY NETT % 96-97 96-97 96-97 93 93
FGT DEG. oC @ NOMINAL 60oC
RETURN, 80OC FLOW 67 69 75 82 75 80 85 80 82 85 140 150 165 140 150 160
FGT DEG. oC @ NOMINAL 50oC
RETURN, 70OC FLOW 60 61 67 75 68 74 79 72 74 76 N/A N/A

Siemens electronic control box diagnostics codes Pt.no. LMO14.111C2EM compatible with mechanical box LOA24.171B27EM
1 Flashing yellow Ignition phase
2Solid green Normal operation
3Flashing green Poor flame - refer line 9 for corrective action
4 Flashing green & red False light on burner start up
5Flashing yellow-red Under voltage
6Solid red Lock-out - fault alarm
7 Flashing red A number of flashes with a pause between
communicates an error code - see below.
Pressing the reset button 3 seconds or more activates the
error code mode.
Pressing the reset button again for 3 seconds or more
activates the diagnostics mode.
To deactivate press the button for 1 second, or remove control
box to reboot.
8 Flickering red Diagnostics mode for connection to a computer
When a solid red light is illuminated, you can get information about what has caused the problem by pressing & holding the reset
button for 3 seconds. The number of flashes is is repeated with a pause between.
9 2 flashes No flame when ignition safety time expires
- lack of fuel supply
- faulty nozzle
- poor burner adjustment
- faulty solenoid coil
10 4 flashes False light during start
11 7 flashes Too many losses of flame during operation. check corrective action for 2 flashes
12 10 flashes Incorrect wiring, internal fault or simultaneous occurrence of two faults
13 Return to normal operation, press reset button for 1 second or remove control box to reboot

SERVICE LOG
YEAR DATE YEAR DATE
1 11
2 12
3 13
4 14
5 15
6 16
7 17
8 18
9 19
10 20
Service engineer’s contact details
Business / contact name:
Mobile: Tel.: Email:
LI0020 ISSUE 1