Houghton BELAIRE H3400 User manual

H3400
A3400
A3401
OWNERS MANUAL
CARAVAN AIR-CONDITIONER
MODEL
MODEL NUMBER:
SERIAL NUMBER:
DATE PURCHASED:
For your safety,please read this manual
carefully before using the product.

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 air-conditioner 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 user
and the air-conditioner.The user shall operate in strict compliance with the
instructions.

Table of Contents
Safety Notes
................................................................................................................................................
1
Product Introduction
....................................................................................................................................
2
Packing List
.................................................................................................................................................
3
Installation Guidance
...................................................................................................................................
4
Quick Start Guide
...................................................................................................................................
10
Remote control operation
..........................................................................................................................
11
Product Maintenance
.................................................................................................................................
18
Specifications
............................................................................................................................................
19
Exploded Diagram and Parts List
..............................................................................................................
20
Trouble Shooting Guide
............................................................................................................................
23
Circuit Diagram
.........................................................................................................................................
24

1
Safety Notes
Keep the air inlet and outlet of the inside and outside units of the air-conditioner
clear.
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 odour,
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 control 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 product specifications.
This appliance is not to be used by persons (including children)with reduced
physical,sensory or mental capabilities,or lack of experience and knowledge.Children
are not to play with this appliance and should be supervised at all times.
It may not be operated in vehicles while driving.
Only connect the LED lighting system to the DC power lead provided from the air-conditioner.
Connection to any other power supply may damage the LED lights.

2
Product Introduction
A.Purpose
HOUGHTON BELAIRE is designed to provide a comfortable environment inside a recreational vehicle or
caravan.
B.Achieving effective heating &cooling
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 air-conditioners,the user withshall consult
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 or awning.
●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 unnecessary electrical appliances within the caravan to reduce the heat load.
●Cook outside of the caravan when possible.
●Park the caravan in shade if possible.
●In case of exceptionally high temperatures,turn on the air-conditioner in advance during the morning.
●Adjust the set temperature of the remote control to prevent frequent starting or stopping of the unit.
C.Condensation
When warm,moist air within the caravan meets with a cold surface,condensation water may be formed.This is
also known as "sweating".In this case,make sure the following measures are taken:
●Close and seal all the doors,skylights,windows to reduce the entrance of warm moist air.
●Operate the inside fan on high fan speed,avoid low and auto fan speeds.
During the operation of the air-conditioner,condensate water will be produced and allowed to drain onto the roof.
This is normal.The amount of condensate water is a function of air humidity.High humidity inside the caravan will
result in more condensate being generated.Close doors,windows and hatches to reduce this to a minimum.
Please note that losses or damage caused by the condensate water are not within warranty scope.
D.Choosing and using a generator
●HOUGHTON BELAIRE requires a mains quality AC power source for correct operation.If you decide to supply
power using a generator then you are strongly recommended to consult with the generator supplier to confirm
suitability and sizing of the generator for your application.
Please note that losses caused to the product by the using of the generator are not within warranty scope.

3
Packing List
1
2
4
3
6
5
7
8
9
11
10
Installation parts list
Main parts:
1．BELAIRE air-conditioner outdoor unit × 1
2．Air inlet duct × 1
3．Roof mount ×1
4．Plenum mounting bracket ×1
5．Return air filter ×1
6．Plenum assembly ×1
Accessories &fixing devices:
7．M8 × 120mm hex head bolts × 4
8．Metal clamping bars × 4
9．Large M8 washers ×4
10．Plenum screw -ST4.2×19 pan head screws × 4
11．Countersunk head self tapping screws ST4.2×16 × 10 12
12．Truss head tapping screws ST4×10 ×4
Not shown:
Manual ×1
Remote control & bracket ×1
If you note that any items are missing or damaged then please contact Houghton or the local distributor.
●
●

4
Installation Guidance
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 installation hole is not preexisting then consult
your caravan manufacturer for the most suitable way
to cut the installation hole.
●The 360 360mm× /14 3/16 × 14 3/16"hole shall be
boarded up with wood sections that are at least
20mm /¾" thick.This boarding is to ensure that the
roof will not crush from the installation bolts and that
conditioned air does not enter the ceiling space.
Installation requirements
●The RV or caravan roof shall be able to support the air-conditioner ’s weight (45kg /99 lbs).
●Minimum thickness of roof is 25mm/1"; maximum thickness of roof is 70mm/23/4".
●If the roof’s thickness is greater than 70mm/23/4", you can purchase a "Thick roof kit"to suit your unit
from HOUGHTON or the local distributor.
Schematic diagram after fixing the blocks
Roof
Block
Roof
Installation instructions
●Thoroughly read and understand this manual before installation.
●Abide by the national wiring rules in your country.
●Do not add any other parts or modify the product in the installation.
●The installers shall be equipped with refrigeration technician qualification certificates and/or suitable
electrical trade qualifications.
●Consult with HOUGHTON or the local distributor in the case of unusual applications or installation
conditions that are not specifically covered by this manual.
≥20 360×
360mm
Block
Block
Block
14 3/16 × 14 3/16"

5
Note
Angle of inclination of the air-conditioner shall not be greater than 5°and the rear of the air-conditioner shall
not be higher than the front.
For advice on installations outside of these limits please contact HOUGHTON or the local distributor.
Before the installation,consider the installation position:
●The air-conditioner shall be installed in the center of
the roof to deliver even air flow within the caravan.
●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.
●Consider the installation position and ensure that
outlets are at least 400mm (16")away from cupboards,
walls &bulkheads that can redirect conditioned air
back to the return air intake.If an outlet is closer than
400mm from an obstruction,then it should be sealed
closed.Failure to do this will result in a unit that
frequently cycles on and off.
●360 × 360mm/14 3/16 × 14 3/16 " cutting position shall
avoid roof cladding joints where ever possible.
●There shall be a space of 100mm/4"minimum all
around the roof top unit to ensure suitable air flow and
access for maintenance.
●The figure below shows the minimum clearance distance required between the BELAIRE air-conditioner and any
obstructions on the roof and the clearance required on the ceiling for the plenum installation.Measure from the
reference position of the 360 × 360mm /14 3/16 × 14 3/16"square hole.Remember to add 100mm /4"clearance
around roof top unit perimeter.
Direction of travel
Plenum position
Position of rooftop unit
Square hole (360× 360mm)
Installation position
Front
Traveling direction of the caravan
Back
360
354
174
575
1122
850 515
360
Unit: mm

6
●Make sure the roof is clean,dry and free from oil or grease.
●Confirm orientation by starting with the "This side up"label 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 installation hole and remove any
sealant that has squeezed out to form an effective seal.
Installation of roof mount
Installation of outdoor unit
Direction of travel
Plenum position
Position of rooftop unit
Square hole (14 3/16 × 14 3/16")
This side up
This side up sealant path
14 3/16"
13 15/16"
6 7/8"
22 5/8"
44 3/16"
33 1/2" 20 5/16"
14 3/16"
Remove the outdoor unit from the carton and move it to
the installation position on the roof.
Put the outdoor unit over the installed roof mount and
adjust the position to make sure they mate and the four
bolt holes on the corners align.
●
●
Important - do not run sealant inside the mounting bolt holes. This will cause breaks in the seal.
Always run the sealant around the outside of the bolt holes as shown.
Unit: inch

7
Note
The outdoor unit weighs about 45kg /99 lbs
use appropriate manual handling precautions.
Use the M8 bolts and check if the holes are
aligned 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.
●It is the installers responsibility to ensure that
local wiring regulations are 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.
●
3 Pole terminal block
Connect the power supply
Connect the storage battery power supply
Note
Match the corresponding active ,neutral and
the ground wire 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 wall-mounted switch
●Connect M8 bolts,washers and fixing metal plates in
order shown.
●Lift the plenum mounting bracket toward the air-
conditioner.
●Insert M8 bolts,washers and metal clamping bars
into the 4 corner holes of the plenum mounting
bracket.Start the bolts into their receiving threads by
hand to ensure engagement.
●Ensure all bolts have started correctly for at least 2 or
3 rotations to avoid cross threading.
Installation of M8 bolts
(Applies to Units with LED lighting)
Locate the pair of 12V DC supply cables (Red &
Black pair ).Connect these cables to the 12V DC
supply from your vehicle.Connect red cable to +12V
and black cable to 0V.
DC supply shall be fused and regulated to
not exceed 15V.
Locate the pair of blue wires labelled " Wall Switch "
These wires can be connected to a NC or NO switch
to allow for control of LED lighting via a familiar
wall switch.
DO NOT APPLY VOLTAGE TO THESE LINES.
Red Black Bule Bule
●Ensure the metal clamping bars align with the
corresponding recess in the plenum mounting
bracket as the bolts are tightened.
●Evenly tighten up all four bolts.
Note
Tighten the bolts to 10-12 Nm (8-9 lbf ft)torque.
Do not exceed 12Nm(9 lbf ft).
Do not use Impact drivers to tighten the
hold down bolts. Impact drivers will apply
very high torques and damage the air-
conditioner. Use only torque limited tools
to tighten these bolts.
(Applies to Units with LED lighting)

8
●Grasp the free end of the air inlet duct and pull it
down until it touches the plenum mounting bracket.
Continue to pull the rim of the duct down until it
engages with the four latches on the plenum
mounting bracket.
●The duct is correctly connected when you hear the
four distinct clicking sounds of the latches and the
rim of the duct is parallel to the surface of the
bracket.
●Remove the air filter from the plenum by pushing
both tabs inwards and then downwards.
Connection of air inlet duct
Installation of the plenum assembly
1
2
3
●Connect the socket and plug of the display panel.
Please note that colors of the wires should be match.
(yellow to yellow,red to red etc),
●Connect LED light power cable.
●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.
( valid only for units with LED lighting )
●The plenum has two types of outlets, one type that
can be closed and another type that have directional
louvers. Assemble the plenum so that the closable
outlets are at the side and the directional outlets
align with the long axis of the vehicle.
●Fix the plenum assembly on the plenum mounting
bracket with four ST4.2 19× pan head screws.
The long axis of the vehicledirection
Click
●If required to fix the rim with the plenum mounting
bracket .using 4 ST4×10 truss head tapping screws

9
●Remove the screw caps from around the perimeter of
the plenum.
●Fix the plenum to the ceiling using the 8 countersunk
head screws.
●Replace the screw caps to the plenum.
●Replace the air filter as shown below.
The installation is completed.
Installation of the air filter
●Adjust direction and angle of louver by moving
blade around its axis.The 2 blades move together.
Louvers on opposite sides are symmetrical.
●Adjust direction and angle of louver by moving the
raised piece in the center of louver.
Adjust the louver
Louver swing
Louver swing
This next section is not compulsory - if required
to pull the plenum up to the ceiling and remove
any gaps.

10
Note
After selecting the COOL or HEAT mode,the compressor may delay starting
for 3 minutes.This is a feature to protect the compressor.
●Switch on the power to the air-conditioner at the isolation breaker.
●Using the remote control , start the air-conditioner by pressing " " button and then select fan
function by pressing the "MODE"button.
●Operate in low FAN,medium FAN and high FAN in turn to check normal operation.
●Select COOL mode,adjust the set point temperature to three degrees lower than the room temperature,
the unit will start to blow cool air after the compressor starts.
●Select HEAT mode,adjust the setting temperature to three degrees higher than the room temperature,
the unit will start to blow warm air after the compressor starts.
●Press the LIGHT key
，
turn on /off the plenum LED light.(Valid only for units with LED lighting)
●Press the DIM key,operate in 25%brightness,50%brightness,75%brightness and 100%brightness in
turn to check normal operation.(Valid only for units with LED lighting )
●Press the wall-mounted switch for LED lights to turn on or turn off the LED lights.
( valid only for units with LED lighting and wall-mounted switch )
●Turn off mains power supply,turn on the remote control,select the "LIGHT"key to turn on or turn
off the LED lights . ( valid only for units with LED lighting and storage battery )
Quick Start Guide

11
Remote control operation
Standard remote control

C
12
Plenum display
Touch screen key
Temperature
display
Mode display
Remote control for units with LED lighting

13
1.Operation of the remote control
Turn on
●Press the on/off key,the unit turns on,the plenum buzzer beeps once and the running mode and temperature will
be displayed.
FAN mode
●Press the key,select the mode,Press the key to select Low/Medium/High fan speeds.The
plenum will display and the indoor environment temperature.
Low Medium High
COOL mode
●Press the key,select the mode.Press the down ▼key to decrease the room temperature.Press the
"FAN "key to select a different speed.The plenum will display and the setting temperature.
MODE FAN
MODE FAN
" "
" "
" "
" "
" "
MODE FAN
MODE " "
" " " "
" "

14
DRY mode
●Press the key,select the mode,Press the down ▼key to set the temperature 1℃lower than the
room temperature ,and the plenum will display and the setting temperature.
HEAT mode
●Press the key,select the mode.Press the up ▲key to increase the room temperature.Press the
FAN key to select different speed.and the plenum will display and the setting temperature.
AUTO mode
●Press the key,select the mode.Press the up or down key to adjust the set point
temperature .Press the FAN key to select different fan speed.The plenum will display and or
and and the setting temperature.
MODE FAN
MODE FAN
MODE
" "
" "
" "
" "
" "
" "
" "
" " " "
MODE
MODE
MODE " "
" "
" " " "
" "
" "
" "
" "
" "

15
Celsius and Fahrenheit degree change
●In any mode，Press the ℃/℉ key to select temperature units of Celsius or Fahrenheit.
Turn off
●Press the on/off key again，unit turns off and the plenum and remote control will be blank.
°C /°F
" "
Note
When in the AUTO mode,according to the difference between the setting temperature and the
environmental temperature ,the plenum will display and (automatic heating), or
and (automatic cooling)in the same time.
" "
" "
" "
" "
" "

16
LED lighting function
●Press the " LIGHT "key,the plenum LED lighting will turn on.
●When LED lighting is on,press the "DIM "key to select 25% / 50% / 75% / 100%brightness.The plenum LED
lighting will display different levels of brightness.
●Press the "LIGHT"key again，the plenum LED lighting will turn off.
WIFI function ( valid only for units with WIFI function)
●Turn on the remote control ,enter into WIFI connection mode by pressing the "℃/℉"and "LOCK"keys simultaneously
for 6s. The indicator light on plenum will show "SC "and rapidly blink.Connect WIFI with mobile,open the APP,add
device, click"confirm".Please refer to WIFI operation instruction for detailed instructions.
Timing function
●Set clock and timer.
1Press the "SET TIME"key,the Hour digit will flash.Press "▲"or"▼"key to set hour.Press the "HOUR/MIN"key,
the Minute digit will flash.Press"▲"or"▼"key to set minute.Clock setup is done.
2Press the "SET TIME "key,until "ON"shows on the upper right side of the clock and hour digit flashes.Then press
the "HOUR/MIN"key,and "▲"or"▼"key,to set the desired time to turn the unit on.
3Press the SET TIME"key,until "OFF"shows on the lower right side of the clock and hour digit flashes.Then press
the "HOUR/MIN"key,and "▲"or"▼"key,to set the desired time to turn the unit off.
4Clock and timer is now set.Keep on pressing the SET TIME"key to check again clock and programmed time to turn
unit on and off.When all setup is done,after 10 flashes,it will return to clock display.
●Timing to turn on :Press the"TIMER"key until "ON"flashes and shows the time to turn on.When "ON"is displayed
after its 10 flashes,and only current clock is displayed,then the setup of timing to turn the unit on is done.
●Timing to turn off :Press the "TIMER"key until "OFF"flashes and shows the time to turn off.When"OFF"is displayed
after its 10 flashes,and only current clock is displayed,then the setup of timing to turn the unit off is done.
●Timing to turn on and off :Press the "TIMER"key until "ON"and "OFF"flashes simultaneously and shows the time to
turn off.When "On"and "OFF"are displayed after their simultaneous 10 flashes,and only current clock is displayed,then
the setup of timing to turn the unit on and off is done.
●Turn off timing function:Press the "TIMER"key,when it only shows the clock,the timer function is turned off.
●Simple method to reset the timer function :remove battery from the remote control ,and then replace , The remote
control will be restored to the factory settings,and the timer function is turned off.
"
"
When only DC power supply, the will "--". Only LED lighting work when the air-conditioner is in
DC mode;
When the DC voltage of the battery is less than 10.8 V, the LED lighting is fixed at 25% brightness and can not be
adjusted.When the DC voltage of the battery returns to 11.4 V or more,the LED lighting can be adjusted
normally.
plenum display show
brightness
●
●

17
2.Plenum operation
Note
Operation of the air- conditioner using the plenum control can be be prevented by pressing
"LOCK"on the remote control.Press the "LOCK"key on the remote control again to unlock.
Tips
Basic air-condition features can be accessed via the plenum control.This is useful if the remote control has been
lost or is not functioning .
●Press the touch screen key on the plenum.The selected mode will cycle through "OFF ->COOL ->FAN
->HEAT "modes with each touch.The set point temperature is 24°C with high fan speed.
●The plenum display will show symbols for each function：
COOL ,DRY ,FAN ，HEAT ,AUTO .
" "
" "
" " " " " "
" "
C
●The remote control should be operated by directing it towards the plenum,which will
beep once when a signal is received.
●When the unit is on,press the "DISPLAY"key on the remote control,the plenum control
LED display can be turned on and off.
●When the unit is on,press the "LOCK"key on the remote control to prevent operation of
the plenum touch key.Press "LOCK"again to unlock this function.
●When run on heating mode in low ambient temperatures the unit will periodically defrost the
outside coil.The plenum will display "dF"during defrost operation and then return to
heating once the defrost is completed.
●
If the device is left unused for long time,please remove the batteries from the remote
control.
●The air-conditioner features power cut memory and automatic starting-up after power is restored.
When the ambient temperature is lower than 0℃/32℉,the heating capacity is reduced.
●
C