HOLLAND HEATER HHO 8L User manual

Installation and User manual
HHO 8-10-12L
Oil fired air heater
Introduction
Holland heats the world
EN

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Dear customer,
Thank you for purchasing our oil fired air heater. This installation and user manual contains all
information to get familiar with this product. In order to ensure that your new equipment will always
work properly and efficiently and to ensure your personal safety, we recommend to read through this
installation and user manual thoroughly and to take particular note of the warning and safety
instructions before starting the machine for the first time.
This oil fired air heater (HHO 8-10-12L) is ideal for heating and/or CO2enrichment in greenhouses and
plastic tunnels. The heaters are also excellent for heating poultry sheds or pig sties. Particularly in
their first stages of life, young animals need a lot of heat, whether they are poultry or pigs. Optimum
temperatures right from the start have a decisive impact on their development, health and general
performance. The heaters can also be used for heating or frost protection in areas used for the
storage and/or preservation of potatoes and tuberous crops. However these products should not be
destined for human consumption.
The HHO 8-10-12L creates the right conditions for your room. This heater is available for use with
kerosene/paraffin oil or diesel. No chimney is needed. The heater is installed exactly where it will be
most effective in generating heat. Another positive feature is that the "open combustion" system
increases the relative humidity in the room.
The HHO 8–10-12L devices have connections for floating contacts. This allows them to be controlled
via thermostats or 24 Volts signal current. There is also the possibility for manual heating and
ventilation. The heaters are secured with a burner controller which has a photocell flame security and
maximal thermostat. If for some reason the appliance does not ignite or the flame is extinguished, the
oil supply is immediately cut off. One solenoid valve unit ensures high levels of safety. No oil can
escape unburnt.
This manual is intended for the technical installer and end user of the HHO 8-10-12L. The information
you need can be found through the table of contents in the manual.
This is the original installation and user manual. To obtain more information or to order other manuals,
contact Holland Heater.
Take good care of this manual and store it near the heater!
The oil used as fuel must be purified, never use polluted fuels or
certain Bio fuels, This will harm the heater directly!
Copyright 2012 by Holland Heater
Holland Heater De Lier B.V.
Leehove 2
2678MC De Lier
The Netherlands
Tel: [phone]
Fax: [phone]
E-mail: [e-mail]
Website: www.hollandheater.nl

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Table of Contents
General information..................................................................................................................... 4
IDisclaimer.............................................................................................................................................. 5
II Product description ..............................................................................................................................5
III Used symbols...................................................................................................................................... 6
IV Identification of the air heater ............................................................................................................ 6
VOrdering spare parts.............................................................................................................................6
1Precautions and warnings ...................................................................................................... 7
2Technical specifications.......................................................................................................... 9
2.1 General product specifications ..........................................................................................................9
2.2 Main sections and components....................................................................................................... 10
2.2.1 The 8 and 10L versions .................................................................................................................. 10
2.2.2 Differences between 8-10L version and 12L version of the heater............................................... 11
2.5 Burner set........................................................................................................................................ 14
2.6 Oil atomising nozzle ........................................................................................................................ 15
2.7 Air inlet chamber............................................................................................................................. 16
2.8 Photocell ......................................................................................................................................... 16
3Installation .......................................................................................................................... 17
3.1 General............................................................................................................................................ 17
3.2 Connecting the oil supply ................................................................................................................ 19
3.2.1 The tank is higher than the heater ................................................................................................. 19
3.2.2 The tank is lower than the heater .................................................................................................. 19
3.2.3 Use of an extra oil pump ................................................................................................................ 20
3.2.4 Use of oil boxes .............................................................................................................................. 20
3.2.5 Mobile Heater with tank ................................................................................................................ 21
3.3 Oil lines ........................................................................................................................................... 23
3.4 Electrical connections...................................................................................................................... 24
4Operation............................................................................................................................ 26
4.1 First use (single pipeline system) .................................................................................................... 26
4.2 First use (return pipeline system) ................................................................................................... 27
4.3 Regular use...................................................................................................................................... 29
4.4 Room thermostat ........................................................................................................................... 29
5Maintenance ....................................................................................................................... 30
5.1 General............................................................................................................................................ 30
5.2 Cleaning........................................................................................................................................... 31
6Environment and discharge.................................................................................................. 33
6.1 Environment.................................................................................................................................... 33
6.2 Discharge......................................................................................................................................... 33
7.1 Burner controller response to failures ............................................................................................. 34
7.2 Burner relay status indicator ........................................................................................................... 34
7.3 Burner relay malfunction indicator.................................................................................................. 35
7.4 Malfunctions and potential solutions .............................................................................................. 36
Appendices ................................................................................................................................ 38

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General information
I Disclaimer
Holland Heater
All rights reserved. Nothing in this version may be copied and/or made public by means of printed
matter, photocopy, microfilm or any other way, without preceding written permission of Holland Heater.
This also includes related drawings and schemes.
Holland Heater has the right to change parts at any moment, without preceding or direct knowledge of
the customer. The content of this manual could also be changed without preceding notification. This
manual is valid for the standard version of the oil fired air heater. Holland Heater can not be held
responsible for possible damage or injury resulting from the deviant specifications of the standard
version delivered device.
This manual has been written with all possible care, but Holland Heater can not be held responsible
for possible failures in this manual or the consequences thereof.
II Product description
Intended use
The HHO 8-10-12L may only be used for the purpose for which it is intended. The HHO 8-10-12L has
been developed for:
•heating and/or CO2enrichment in greenhouses and plastic tunnels;
•heating poultry sheds or pig sties;
•heating or frost protection in areas used for the storage and/or preservation of potatoes and
tuberous crops. (Not destined for human consumption)
Proper use of the equipment also entails observing the manufacturer's conditions of operation,
maintenance and installation.
Unintended use
Use of the equipment for any other purpose as described above shall be regarded as improper use.
The manufacturer will not be liable for any damage resulting from improper use; the user shall bear
the sole risk thereof. A few remarks in addition to this statement:
•Diesel fuel may not be used in poultry or pig sties, petrol is recommended.
•The Heater may not be connected to a hose or ventilation duct. (see chapter 3.1 page 15)

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III Used symbols
Warning of a general danger
Warning of dangerous voltage
IV Identification of the air heater
An identification plate can be found on the
delivered air heater. It contains information about
the producer, model, serial number etc.
The image on the right is an example of what
the identification plate could look like.
V Ordering spare parts
When ordering spare parts, always indicate the following:
•Code no. and description of part or item number with description and manual number for
uncoded parts;
•Number of original invoice;
•Electricity supply, e.g. 230/400 V, 3 ph, 50 Hz.

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1 Precautions and warnings
General
•Never use polluted fuels or certain Bio fuels, This will harm the heater directly!
•Regular proper cleaning of the heater avoid uncontrolled fire!
•Before using the heater, read the safety instructions and make sure that the
heater, fuel lines, oil tank, electrical supply and room thermostat are connected as
described.
•Any unlawful alterations to the heater will rule out manufacturer liability for any
resultant damage.
•Always follow local- and national regulations.
•Installation and maintenance should only be carried out by persons who have the
training, knowledge or practical experience to ensure that the installation and
maintenance is done properly.
•When fueled with diesel this heater is not suited for heating and/or CO2
enrichment in greenhouses or plastic tunnels where plants or crops are being
grown.
•The HHO 8-10-12L is a heater for use in mentioned rooms. Use of the equipment
for any other purpose shall be regarded as improper use. The manufacturer will
not be liable for any damage resulting from improper use; the user shall bear the
sole risk thereof.
•No account is taken with general hazard of fire in this manual. Consult the fire
insurance company and/ or the local fire brigade for more information.
•With storing manure, gasses are formed which are partly dissolved.
These poisonous and explosive gases (e.g. Sulphur hydrogen and methane) can
be released during stirring and rinsing. With a source of ignition a big explosion
may occur.
To prevent a hazardous situation shut off the heaters completely before stirring or
rinsing. Also observe the following points:
•Close the doors when manure is stored outside;
•Ventilate the room thoroughly.
•Note the distance of the heater to feeding and drinking equipment and to plants in
glasshouses concerning dehydration.
•Always use oil-resistant lines with the correct line clips!
•The "ventilate" mode is particularly useful in the summer. However, make sure
that there is enough oil in the tank, since the oil pump could seize if it is not being
lubricated by the oil.
•It is advised to use a room thermostat with a differential of ± 2C. It will activate
the heater when the room temperature drops 1C below the set temperature, and
deactivate when the room temperature rises 1C above the set temperature.
Using a thermostat of this kind will reduce the likelihood of failures and improve
the performance of the heater.

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Safety
•Any work extending beyond the scope of equipment maintenance must be
performed by a qualified technician only.
•Never remove the safety grill or inspection hatch while the heater is active or
could be activated.
•Do not press the lockout-reset button more than once in case of a failure.
If the heater keeps locking out, isolate it from the mains electrical supply by
removing the mains plug from the socket and contact a qualified technician.
•Before starting up the appliance, examine all electrical wiring for any visible
defects and change any damaged wiring.
•Never remove the plug from the socket while the heater is active and always allow
the heater to cool down. The heater ventilates for about one and a half minute
when the heater has been switched off before the oil valve closes and stops the
burning.
•Never use the heater when components are removed or missing.
•Covering electric motors can cause high temperatures to build up, which can
destroy the electrical equipment and cause fires.
•Never use polluted fuels or certain Bio fuels, This will harm the heater directly!
Electrical
•Have any plug devices that are damaged or destroyed replaced by a qualified
electrician.
•The heater must always be connected to the mains electrical supply via an
earthed socket.
•Always plug the heater directly into a socket. Do not use an extension cord.
•Always disconnect the appliance from the mains before performing any
maintenance.
•Do not connect the burner controller to the three-phase mains.

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2 Technical specifications
2.1 General product specifications
Oil-Fired Warm Air Heater
Model HHO -
8L
10L
12L
Output kcal/h
kW
BTU
69000
80
27300
86000
100
341200
103000
120
409450
Fuel consumption l/h
Kg/h
8
6,2
9,6
7,8
12
9,4
Air output m3/h
cfm.
7700
4543
7700
4543
7700
4543
Motor speed rpm
1400
1400
1400
Electric Tension 50-60Hz V
230
230
230
Electric current 230V-50Hz A
5,1
5,1
5,1
Power 230V-50Hz W
1150
1150
1150
Sound pressure dBA
73
73
76
Weight Kg
47
47
55
Throw ventilator m
40
40
40
Height (A) mm
591
591
591
Width (B) mm
664
664
664
Length (C) mm
1268
1268
1368
Diameter mantle mm
524
524
524
Distance centre brackets mm
765
765
865
Material
The shell and burner chamber are made of stainless steel 430 BA. The materials used are capable of
withstanding the maximum loads.

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2.2 Main sections and components
2.2.1 The 8 and 10L versions
Pos.
Name
Item nr.
Pos.
Name
Item nr.
1.
Oil pump
(see 2.4)
12.
Grill
2.
Engine bracket
13.
LeMac Fan Engine
490031
3.
Oventrop Oilfilter
(see 2.4)
14.
Heater support bracket
4.
Edge profile
15.
Fan 20” 28º
490035
5.
Inspection hatch
16.
Mounting plate for oilfilter
6.
Burnerset
(see 2.5)
17.
Mounting plate for electrobox
(see 2.3)
7.
Max. thermostat sensor
510173
18.
Air inlet chamber
8.
Burnerchamber support
19.
Photocell
(see 2.8)
9.
Burnerchamer shell
20.
Burnerchamber backplate
10.
Hoist ring M6
21.
Main shell
11.
Air outlet cone
22.
Heatshield

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2.2.2 Differences between 8-10L version and 12L version of the heater
The differences between a 8L heater or a 10L heater is just a different fuel nozzle. However the
differences between a 10L and a 12L heater are somewhat more elaborate.
The main difference is that the 12L heater has a bigger burnerchamber (6) not only is it longer the
diameter is also larger. As a result the dimensions of some related parts change as well. First and
foremost is the main shell, the 12L burnerchamber is 10cm longer and so is the main shell (3). The
diameter of the burnerchamber is 37mm larger and as a result the burnerchamber backplate (2) and
the heatshield (7) are aswell.
Because the diameter of the burnerchamber is larger and the (inner) diameter of the main shell is the
same as the 10L, the burnerchamber supports (4) decreased in size.
The most significant change to facilitate a 12L input is the addition of a extra protection shell (5) to
prevent the main shell (3) from getting to hot. Also the air scoops of the air inlet chamber (1) got larger
to provide the flame with more oxygen.
Apart from these differences the 3 heaters are similar, the names of the other components of the 12L
can be found in paragraph 2.2.1
8-10L
12L

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2.3 Electrical components
Pos.
Name
Item nr.
Pos.
Name
Item nr.
1.
Fault indication lamp
510146
7.
Max.thermostat
510173
2.
Ignition transformer
100046
8.
Max.thermostat bracket
3.
Mountingboard components
9.
Main operating switch
510140
4.
Circuit breaker
510069
10.
Burner controller
490032
5.
Timer
490056
11.
Reset button
510135
6.
Relay
510125
12.
Terminal Strip

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2.4 Pump pressure
The heater's pump pressure is set at the manufacturer but it is advisable to check the pump pressure
during maintenance. Always check the pump pressure during a failure and also when the flame
appearance is barely visible. To do so, use a pressure gauge with a measuring range of 0 to 16 bar or
0 to 25 bar.
Install the pressure gauge including the screw to adjust the pump pressure as shown in the image
below:
Pos.
Name
Item nr.
1.
¼ x 6 mm coupling 90º screw-in 2x
560061
2.
Oil pump
100009
3.
Adjustment screw pump pressure
4.
¼ x 6 mm coupling straight screw-in
560062
5.
Oil line pump > nozzle
6.
Oil line pump > oil filter
7.
Oil line oil filter > pump
8.
⅜ x 6 mm coupling straight screw-on 2x
490070
9.
Input from fuel tank
10.
Output for air bleeding/ return
11.
Oil filter Oventrop
490044
The correct pump pressures for the various models of heater are shown in the table below
Type
HHO 8L
HHO 10L
HHO 12L
Kerosene
9 bar
9 bar
9 bar
Diesel
8 bar
8 bar
8 bar
Pressures of up to 1 bar above or below the correct pressure are acceptable. The pump pressure can
therefore often best be set on the basis of observed combustion performance.
NOTE:
If the heater has an unpleasant smell and the flame appearance is too small, the oil supply is
low and the pressure should be increased. If the flame appearance is reddish and flames are
coming out of the heater, the oil supply is too high and the pressure should be reduced.
However, these problems are not necessarily down to incorrect pump pressure alone. A defect
nozzle could also be the cause of the problems. See chapter 7 “Failures” for more information
about troubleshooting.

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2.5 Burner set
The burner set is a vital part of the heater. Its function is to light the oil coming out of the nozzle, and it
must be capable of doing so under adverse conditions. It is therefore very important that it is properly
adjusted. If the burner set is badly adjusted, the ignition spark
may form in the wrong place or may not form at all. This will
cause the heater to lock out.
When the heater is activated, it is possible to see that the burner
set system starts operating. Between the two ignition electrodes
a well-defined spark should be visible.
Under the influence of the air current, the spark should form in
front of the nozzle. If a strong spark is visible and it is in the right
place, the burner set should function properly.
Carefully adjust the ignition electrodes. If the porcelain sleeve of
the electrode breaks or cracks, the whole electrode needs to be
replaced.
Pos.
Name
Item nr.
1.
⅛ x 6mm coupling 90º screw-in
560056
2.
Magnetic valve
100019
3.
Ignition electrodes
490054
4.
Mounting plate
5.
Nozzle block
100028
6.
Nozzle
(See 2.6)
7.
Burner disk
490057

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2.6 Oil atomising nozzle
Note the position of the parts before replacing them.
The oil atomizing nozzle and the pump pressure together determine the output of the heater. After a
few years, a worn nozzle may deliver too much or too little oil. This could lead to combustion
problems.
If too little oil is being delivered, and the pump pressure is correct, check to see whether there are any
blockages in the fuel system, dirt in the oil filter or in the nozzle filter. If no blockages are found, the
nozzle should be replaced.
If too much fuel is being delivered, and the pump pressure is correct, check to see whether there are
any leaks in the heater. If no leaks are found, replace the nozzle.
•Replace the oil atomizing nozzle with a genuine nozzle of the same make and type. The
heater is designed and adjusted to suit that particular make and type of nozzle.
•After a new nozzle has been fitted, check the adjustment of the ignition electrodes and the
burner disk.
The correct nozzles for the various models of heater are shown in the table below.
Heater
model
Make of
nozzle
Discharge
(US-gal/h)
Flow
ltr/h
Nozzle
model
Item no.
DANFOSS
HHO 8L
2,00
8
60S
HHO 10L
2,25
9,6
60S
490041
HHO 12L
2,75
1
60S
490082
The burner disk
The burner disk is attached to the nozzle block. The burner disk ensures
that the fuel and air are thoroughly mixed and trained to form a spiral jet.
If the heater is used in a particularly dusty area, the burner disk can
become very dirty. This in turn can lead to combustion problems. The
burner disk should therefore be cleaned with a wire brush so that its
blades are free of dirt. After cleaning, check that the whole burner set
assembly is properly adjusted before replacing it.

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2.7 Air inlet chamber
The air inlet chamber is the square housing mounted to the burner chamber. The burner set is
attached onto the air inlet chamber.
The air inlet chamber has four air inlets that provide air (oxygen) that is needed for the combustion
process. The inlets are adjusted at the manufacturer and need no further attention, although the
openings should be cleaned with compressed air once they become dusty (see paragraph 5.1). Do
not adjust the openings, altering the air supply will likely lead to ignition- or burning problems.
2.8 Photocell
The photocell is mounted in a holder attached to the back of the combustion chamber. The photocell's
function is to check whether there is a flame in the combustion chamber when the heater is activated
and while it is operating. If no flame is detected during activation or when the heater is in operation,
the heater will lock out. However, if the photocell is dirty or faulty, it may not detect a flame even when
there is one, causing the heater to lock out.
8-10L
12L

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3 Installation
3.1 General
Mind the following precautions before installing the heater:
Mounting
•The heater must be properly secured using the suspension eyes or (if it is being fixed down)
using the tunnel brackets on its bottom. Secure the heater using chain or steel cable of at
least 4 mm in diameter.
•The heater must be as close to the horizontal as possible, and certainly not inclined at an
angle of more than fifteen degrees.
•The heater must not be connected to a duct system and it is forbidden to use the heater at a
location where inflammable objects are placed.
Oil connection
•The oil used as fuel must be purified!
•Never use polluted fuels or certain Bio fuels, This will harm the heater directly!
•Check the fuel supply lines regularly for leaks and loose fittings.
•The oil tank must meet the relevant environmental standards and must be contained within a
spillage sump. The capacity of the sump must be at least the same as the capacity of the tank.
The sump must be protected from the rain.
•The bush in the spillage sump through which the primary fuel line passes must be watertight
and oil-tight by line clips.
•The main fuel pipe must be thick-walled and made of stainless material.
•The diameter of the main fuel pipe must be at least 3/4" (20 mm).
•The oil tank and each of the oil boxes must be fitted with a manual oil valve.
•The fuel line must be secured to the heater and to the oil tank with suitable line clips.
•Oil lines should not be left on the ground, lead them along a steel construction or wall without
sharp bends.
Electrical
•Make sure to use a well earthed socket.
•Always unplug the heater before performing maintenance.
•Never take the plug out of the socket while the heater is still working, always let it cool down.
•Have the heater repaired by a certified dealer during failures.
•Press the reset button three times maximum during a failure. Is there still a failure, unplug the
heater and consult a qualified technician.

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Safety
•Never use polluted fuels or certain Bio fuels, This will harm the heater directly!
•Never remove the grill or service hatch when the heater is or might start running.
•Never use the heater when parts are removed.
•To avoid oxygen depletion, the room in which the appliances are installed must have enough
ventilation:
-Either by a mechanical extractor device or ventilation system that extracts at least
10
m3of air per hour for every 1 kW of installed output.
-Or it must have adequate natural ventilation; if the room has two openings, a
ventilation factor of 1.0 (i.e. one change of room air per hour) can be achieved
naturally. The openings must have a free opening area of at least 60 x B cm2,
where B is the installed output in kW. The overall output of the installed appliances
must not exceed 1 kW per 20 m3of room volume if natural ventilation is used.
•Always replace defect or faulty parts with original ones or with the same specifications.
•Make sure there is enough space around the heater:
-The area around the heater should be at least 1 m free from obstacles.
-The area in front of the heater should be at least 3 m free from flammable objects.

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3.2 Connecting the oil supply
Note the distance of the heater to feeding and drinking equipment and to plants in
glasshouses concerning dehydration.
Legend of the images in the next four paragraphs:
A. Non-return valve D. Reduction regulator
B. Filter E. Vacuum valve
C. (Manual) Shut-off valve F. Oil box
Different circumstances require different ways of installation; paragraph 3.2.1 describes an installation
where the tank is higher than the heater, paragraph 3.2.2 describes an installation when the tank is
lower than the heater, paragraph 3.2.3 describes an installation with an extra oil pump and paragraph
3.2.4 describes an installation when using oil boxes.
3.2.1 The tank is higher than the heater
Install a vacuum valve (E). It prevents
spilling a complete tank of fuel in case of
a leak.
The vacuum valve has to be placed
before the oil line drops beneath the
highest level in the tank.
Always use a filter (B) when the oil or
the tank may be dirty.
3.2.2 The tank is lower than the heater
The pump draws the fuel directly from
the main tank.
Make sure the oil doesn’t flow back, use
a non-return valve (A) at the supply line
in the tank. Mind the height difference,
see the table in chapter 3.3.
The return oil line has to end at least
half way in the tank.
Always use a filter (B) when the oil or
the tank may be dirty. Use oil lines of
max. 3/8" (9,5 mm). Bigger diameters
could cause air bubbles.

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3.2.3 Use of an extra oil pump
Mind the pump pressure; use a
reduction regulator (D). The pressure on
the filter may not exceed 0,5 bar.
If necessary, use aluminum or brass
filter jars or oil conduits that can sustain
higher pressure and clamp them well on
the nipples!
Always use a filter (B) when the oil or
the tank may be dirty.
3.2.4 Use of oil boxes
The oil box (F) serves as a small
reservoir, the oil circulates between the
oil box and the heater.
Make sure the boxes are at least 10 cm
lower in relation to the underside of the
tank.
Connect a manual valve on each box
and bleed the boxes regularly!
The advantage of using an oil box is that
there is no need for return lines to the
main tank.