Houghton H2000C User manual

1

Safety Notices
Dear user, thank you for choosing a HOUGHTON caravan air-conditioner. For your
ease of use and safe maintenance we have included the following symbols in this manual:
All the contents with this “Prohibition” logo are about the actions that
shall be prohibited, or else the machine may be damaged or the user’s
personal safety may be endangered.
All the contents with this “Warning” logo are about the safety of the
product and the user, the user shall operate in strict compliance with the
instructions.

Table of Contents
Safety Notes................................................................................................................................................ 1
Product Introduction ...................................................................................................................................3
Packing List ................................................................................................................................................ 3
Installation Guidance..................................................................................................................................4
Instructions for Use...................................................................................................................................10
Operation Instruction of the Remote Controller....................................................................................... 11
Product Maintenance ................................................................................................................................ 14
Specification Parameters........................................................................................................................... 15
Exploded Diagram and Parts List.............................................................................................................16
Trouble Shooting Guide............................................................................................................................ 18
Circuit Diagram ........................................................................................................................................ 19

1
Safety Notes
Keep the inlet and outlet of the inside and outside units of the caravan air conditioner
smooth.
Do not spray any paint or insecticide on the surface of the air-conditioner.
Immediately turn off the air-conditioner and isolate power supply if there is any
unusual odor,smoke or fire detected, Contact after-sales-service personnel in case of unit
fault and fire.
Make sure the external electric supply socket of the caravan air-conditioner is
effectively grounded in accordance with your local regulations. Failure to ground the
unit correctly may cause electric shock or fire.
The caravan air-conditioner shall be switched on for electric leakage detection
after installation.
If you are not to use the air-conditioner for a long time, please isolate the power
supply.
Clean the filter of the air-conditioner regularly, A dirty filter will decrease air flow
and lead to poor heating and cooling performance.
Use the remote controller to operate the air-conditioner.
Install the air-conditioner in compliance with the instructions of this
manual ,Incorrect installation methods or alteration of the product may cause damage to
the product or personal injuries to the user.
Be careful when installing the unit on the roof of the caravan ,crawl boards may be
required.
There may be wires between the roof and the ceiling. When cutting into the roof,
make sure the power is isolated prevent risk of electric shock .
Installation and maintenance of the air-conditioner must only be performed by
personnel with appropriate trade qualifications and holding current licenses for such
work.
Do not over-tighten the power connection terminals.
Ensure that your electrical supply and wiring is correctly sized for the power
demand of the air conditioner. Refer to the specification requirements of the product

2

3
Product Introduction
A. Purpose
HOUGHTONBELAIRE is designed to provide a comfortable environment inside a recreational vehicle or caravan.
B. How to provide an efficient operation
Many factors will affect the total heat load within the caravan and many factors can also affect the working efficiency
of the air-conditioner. Before purchasing HOUGHTON BELAIRE, the user shall consult with the caravan manufacturer to
understand the total heat load of the caravan and to choose the correct air-conditioner for the application.
The following measures are very useful to reduce the heat load within a caravan or RV and improve the performance of
the air-conditioner.
Close all the doors, skylights and windows, draw the curtains and open the sunshade.
Adjust the caravan’s position to make sure the sunshade is on the southern side in the northern hemisphere or on the
northern side in the southern hemisphere. This will reduce the exposure to direct sunshine.
Turn off the unnecessary electrical appliances within the caravan to reduce the heat-load.
Please cook outside of the caravan.
Park the caravan at a shade place.
In case of exceptional high temperature, turn on the air-conditioner in advance during the morning.
Adjust the set temperature of the remote control to prevent from frequent start or stop of the unit.
C. Condensation
For the areas where the air humidity is comparatively low, when the warm moist air within the caravan meets with the
cold wind from the outlet, condensate water may be caused, which is also called as “sweating”. In this case, make
sure the following measures are taken:
Close all the doors, skylights, windows and draw the curtains to reduce the warm moist air incoming.
In the operation of the air-conditioner, a large number of condensate water will be produced on the roof as the warm
moist air is exhausted by the operation of the air-conditioner. The size of the condensate water is decided by the air
humidity. In this case, do not adjust the wind speed to low or auto mode but adjust it to high speed mode to increase
the circulation of the air and reduce the condensation degree.
Please be noted that losses caused by the condensate water are not within warranty scope.
D. Choosing and using of generator

4
HOUGHTON BELAIRE requires an AC power source. and may require for generator driving in some remote areas.
Requirements for generator include: efficient power source, stable currency, output waveform: sine wave, that shall
meet the driving requirements of the compressor. The user shall consult with the generator supply and fully refer to
their suggestions.
Please be noted that losses caused to the product by the using of the generator are not within warranty scope.

5
Packing List
Installation parts list
Main parts:
1．BELAIRE air-conditioner outdoor unit×1 1
2．Outlet air duct ×1
3．Chassis reinforced support ×1
4．Plenum mounting bracket ×1
5．Return air filter ×2
6．Plenum assembly ×1
2
4
2
5
4
2
5
4
2
6
5
4
2
3
2

6
Installation Guidance
Accessories & fixing devices:
7．M8 x 120 mm bolts ×4
8．Fixing metal plate ×4
9．Large washer ×4
10．Plenum screw ×4
11．Countersunk head tapping screw ×4
8
9
10
7
Installation requirements
The RV or caravan roof shall be able to support the air-conditioner’s weight (28kg).
The opening part of the roof shall be able to support the air-conditioner’s weight and allow for the
corresponding operations.
Minimum thickness of roof: ≥25mm; maximum thickness of roof: ≤125mm。
If the roof’s thickness is beyond the above requirements, you can purchase the enhanced length of the
outlet air duct and M8 installation bolts from HOUGHTON or the local distributor.
Installation instructions
Read this Manual thoroughly before installation and understand the guidance.
Abide by the national circuit operation rules in the installation.
Do not add other parts or restructure the product in the installation.
The installers shall be equipped with refrigeration technician qualification certificates.
Consult with HOUGHTON or the local distributor in the case of unusual applications or installation
conditions that are not specifically covered by this manual.
11

7
Load bearing of roof:
The roof shall be able to bear the weight of the
air-conditioner and shall be level without accumulating
water. It is suggested that the caravan manufacturer
confirms the suitability of the roof for load bearing.
If the roof is not preserved with holes, they shall be
punched from the top of the roof to the inside and use
them as leading to punch through the ceiling. It is
suggested to consult with the caravan manufacturer to
get the best punching method.
The 400x400mm hole shall be boarded up with wood
sections that are at least 20mm thick. This boarding is
to ensure that the roof will not crush from the
installation bolts and that air conditioned air does not
enter the ceiling space.

8
Note
Angle of inclination of the air-conditioner shall not be larger than 5° and the back part of the
air-conditioner shall not be higher than the front part.
For advice on installations outside of these limits please contact with HOUGHTON or the local distributor.
Installation position
Before the installation, consider the installation position:
The air-conditioner outdoor unit shall be installed at
the center of the roof to make sure balance of the air
flowing.
The installation position of the outdoor unit shall be
consistent with the traveling direction of the caravan.
When installing ensure that there is sufficient room for
the plenum assembly to be installed.
The installation positions shall be kept away from the
skylights, heaters or light positions that may affect the
air flows.
400x 400mm cutting position shall be kept away from
connecting position at the roof.
There shall be a space of 100mm minimum all around
the roof top unit to ensure suitable air flow and access
for maintenance.
The left lower figure shows the minimum clearance distance required between the BELAIRE air-conditioner and any
obstructions on the roof.
Moving direction of the caravan
Front
Back

9
Installation of chassis reinforced
support
The right lower figure shows the minimum distance of the installation position of the panel, measure in reference to 400x
400mm holes.
Make sure the roof is clean and dry and free from oil & grease.
Confirm orientation by starting with the “this side up” logo upwards.
Turn the part over and on the reverse side of “this side up”, apply silicone sealant uniformly over the path shown.
Turn the part over again and make sure “this side up” is up. Press down firmly over the 400×400mm hole and remove
any sealant that has squeezed out to form an effective seal.
400x400
Sealant path
This side up
This side up

10
Remove the outdoor unit from the carton and move it to the installation position on the roof.
Put the outdoor unit over the chassis reinforced support and properly adjust the position to make sure they mate and the
four bolt holes on the corners align.
Installation of outdoor unit
Note
The outdoor unit weighs 28Kg,
lift the outdoor unit at the same time
with another person .
Use the M8 bolts and check if
the holes are consistent with the
holes of the plenum mounting
bracket. If not then use a long screw
driver inserted up through the two
holes to assist with alignment.

11
Note
Match the corresponding active (brown),
neutral (blue) and the ground wire (yellow
green) and firmly tighten up the screws to
make sure the power line is not loose or
improperly connected, otherwise a short
circuit or fire could be caused.
Connect the power supply
Pay attention to the local wiring regulations that need
to be followed when connecting to mains supply.
Look upward from inside the caravan, and locate the
terminal block as shown in the figure below.
Connect the external power lines to the 3-pole terminal
block and note the positions of the active, neutral and
ground.
Connect M8 bolts, washers and fixing metal plates in
order as the following figure.
Lift the plenum mounting bracket toward the machine.
Insert M8 blots, washers and fixing plates to the holes
of the 4 corners. Start the bolts off using finger effort.
Ensure all bolts have started correctly for at least 2 or 3
rotations to avoid cross threading.
Ensure the metal fixing plates align with the
corresponding recess in the plenum mounting bracket
as the bolts are tightened.
Evenly tighten up all four bolts .
3 Pole terminal block
Installation of M8 bolts
Connection of outlet air duct

12
Grasp the free end of the flexible air duct and pull it
downwards towards the top of the mounting bracket.
Pull the air duct down until it engages with the plenum
mounting bracket. The duct connects to the bracket
with four catches that will clicks when secure.

13
Installation of the plenum assembly
When you have heard 4 clicks and the end of the duct
is firmly parallel to the top side of the bracket then you
have successfully connected.
Connect the socket and plug of the display panel wires
and the controller wires; please notice that colors of
the wires should be matching ( yellow to yellow, red
to red, etc );
Attach the plenum assembly to the plenum mounting
bracket by engaging the two parts. You will hear four
clicks to as the parts connect together.
Click
These two faces
are parallel
Loop
II

14
Fix the plenum assembly on the plenum mounting
bracket with 4 provided pan head screws;
Take out the return air filter and fix the plenum to the
ceiling with 4 provided countersunk head screws;
Finally, fit both return air filter into the plenum
properly and the installation is all completed.

15