KONVEKTA KL40T/12V User manual

Konvekta AG
Am Nordbahnhof 5
34613 Schwalmstadt
Germany
✆+49 ( 0 ) 66 91 / 76 – 0
+49 ( 0 ) 66 91 / 76 – 200
[email protected]
www.konvekta.com
Operating Instruction
for KONVEKTA
Air Conditioning unit
KL40T / KL45T / KL46T
with Thermotronic
Versions:
 12 / 24 Volt DC
 Recirculated Air
ID#: BBA-KL40T12AD
Version: A07

BAKL40T12AD Edition: 01.03.2017 Page: 2/9
Contents
Page:
•Introduction.........................................................................................................................3
•Information on the operating instructions ........................................................................4
1. Technical data air conditioning unit...............................................................................5
1.1. Compressors .....................................................................................................................5
2. Intended Use ....................................................................................................................5
3. Generally information for a/c unit...................................................................................6
3.1. Operating Conditions .........................................................................................................6
4. Operation..........................................................................................................................6
4.1. Function of the keys...........................................................................................................7
4.2. Operation of a/c system.....................................................................................................7
4.3. Temperature adjustment....................................................................................................7
5. Maintenance / Service .....................................................................................................7
5.1. Oil change Compressor type KVX .....................................................................................8
5.2. Return air grid....................................................................................................................8
5.3. Condenser coil...................................................................................................................8
5.4. Troubleshooting.................................................................................................................8
6. Warranty Conditions........................................................................................................9
7. Waste disposal in accordance with legal provisions....................................................9
8. History of modification....................................................................................................9
Appendix:
•Maintenance Schedule Bus WP07050618

BAKL40T12AD Edition: 01.03.2017 Page: 3/9
Introduction
These operating instructions have been written for drivers, operators and the maintenance staff of
your air conditioning unit.
In this context, we refer implicitly to the compliance with our general installation guidelines.
These can be obtained from the KONVEKTA technical after sales service:
[e-mail].
Please observe our valid safety instructions, available under www.konvekta.de/asv.html. In
case of order placement or any other conclusion of contract the safety instructions get inte-
gral part of the contract.
These operating instructions have to be read carefully and made use of before the first start-up and
after that regularly by each person who is involved in handling the machine:
•Operation including troubleshooting and waste disposal of fuels and auxiliary agents.
•Servicing, inspection, repair
•Transport
This facilitates the handling and avoids trouble caused by improper operation. Working in compli-
ance with these operating instructions increases operation reliability and service life of the air condi-
tioning unit and reduces life cycle costs.
Please complete these instructions by adding the national provisions for prevention
of accidents and environmental protection.
These instructions are part of the air conditioning unit. Always have a copy at hand
in the driver’s cabin.
You will certainly understand that we will not recognize any warranty claims due to improper han-
dling, inadequate maintenance, applications that do not correspond with the determined use, utili-
zation of non-admitted fuels or the non-observance of safety provisions.
KONVEKTA will annul without notice all obligations concerning guarantee, service contracts etc.
regardless if granted by KONVEKTA or its distributors in case other than original KONVEKTA
spare parts or parts bought from KONVEKTA AG have been used for maintenance and repair.
These operating instructions contain all necessary information to operate your air conditioning unit.
In case you need more explanations please contact the next KONVEKTA service station.

On our website www.konvekta.com in category >service< you will find a survey of contact details of all our
service partners close to your location.

BAKL40T12AD Edition: 01.03.2017 Page: 4/9
Information on the operating instructions
These operating instructions are valid for the a/c-units type:
•KL40T/12V •KL45T/12V •KL46T/12V
•KL40T/24V •KL45T/24V •KL46T/24V
 When taking the unit into operation we recommend adding the following data. This will also be
important for your orders of spare parts, and in case of warranty .
Serial number of the unit: ...........................................
Order No.: .........................................
Year of construction: ................./ .............. ................. (MM/JJ)
Date of first operation: ................./ ............../ ................ (TT/MM/JJ)
The machine is in accordance with the EC machinery directive 2006/42/EC.
The unit contains or needs fluorinated greenhouse gas for operation and is subject
to identification requirements in accordance with F-Gas Regulation 517/2014.
Due to the fact that scope of supply depends on the order, equipment of your product may differ in
some parts of description.
In case your product is equipped with details not shown or described in the operating instruction,
your KONVEKTA -Service-Station will always be at disposal for informing you about correct opera-
tion.
In the course of further developments we reserve the right to technical modifications without notice.
Guarantee and liability conditions of KONVEKTA AG’s general business conditions are not en-
larged by the above notes.
Indications and photos should neither be copied and circulated nor used for competitor’s purposes.
All rights according to the copyright remain expressly reserved.
Manufacturer: KONVEKTA AG, Postfach 2280, D-34607 Schwalmstadt

BAKL40T12AD Edition: 01.03.2017 Page: 5/9
1. Technical data air conditioning unit
Type
:
KL40T
KL45T
KL46
Refrigerant
R134a
GWP
1.430
·
-
quantity
with front box
[kgs] approx. 2,5
3,3
2,5
3,3
2,5
3,3
Operating voltage
resp. [Volt DC] 12 24
12
24
12
24
Current consumption
(three-stage) at 13V:
(three-stage) at 26V:
[Ampere] 88
44
88
44
88
44
Cooling capacity
with KVX40
KVX30 or TM31
TM21
[Watt]
18.000
15.000.
12.000
18.000
15.000.
12.000
21.000
-
-
Evaporator
–
Air volume
*
,
free-
blowing
[m
3
/h]
three-stage 4.000 4.000 4.000
Measurements:
-
leng
th
[mm] 1.966 1.985 1.985
-
width
[mm] 1.368 1.336 1.336
-
hight,
-
depending on roof radius [mm] 221
188
234
188
234
188
Weight
of unit, Version:
-
Recirculated Air
[kgs ] approx. 65,5 78,5 81
* With standard fans and/or blowers
1.1. Compressors
Important:
To avoid leakages at the shaft seal of the compressor: The compressor should be started every
4 weeks for approx. 15 minutes! This also applies when the vehicle is not into operation for a longer
period or when the air conditioning unit is not used!
Compressor type depending on scope of delivery, see identification plate at compressor.
Type: KVX40/390 KVX30/325 HDC 33 TM21
Weight (kgs) approx. 33 24,5 15,5 9,7
Refrigerant oil
- Quantity (Liter)
Esteröl SE55
2
Esteröl SE55
2
ZXL 100PG
0,5
ZXL 100PG
0,18
Magnetic clutch
1)
- Weight (kgs)
12 / 24V DC
12
12 / 24V DC
7,6
12 / 24V DC 12 / 24V DC
1)
ø depending on vehicle type
2. Intended Use
The KONVEKTA air conditioner represents an air conditioning system that works with the ozone
friendly refrigerant R 134a and which creates a pleasant and individually adjustable room tempera-
ture by means of forced convection. The determined use includes also the observance of the Oper-
ating instruction and the proof of regular inspections as well.

BAKL40T12AD Edition: 01.03.2017 Page: 6/9
3. Generally information for a/c unit
Attention in case of roof top a/c units: Never switch on the a/c unit during car-wash!
The a/c unit is operational with running engine only.
At cooling operation the humidity inside the vehicle is decreased, which avoids steamed up
windows. The a/c unit works most effectively with windows and doors shut. If, however, the inte-
rior of the standing vehicle has been heated up severely by exposure to sunlight, short-time
opening of windows and doors may accelerate the cooling down process.
At high outside temperature and humidity condensate might drip off the evaporator and make a
puddle under the vehicle. This is quite normal and no sign for a leakage.
The filter in the return air grid (optional) retains pollution. If the external air is contaminated with
gas switch over to return air operation. The filter should be cleaned or replaced respectively on
a regular basis so that the capacity of the a/c unit is not affected.
If you think that the a/c unit is damaged, switch it off immediately. To avoid further damage
have it check at a KONVEKTA Service Station

. Only after that you can take unit into operation.

On our website www.konvekta.com in category >service< you will find a survey of contact details of all our
service partners close to your location
3.1. Operating Conditions
NOTE:
KONVEKTA uses components made of copper and aluminium, which last a whole unit lifetime un-
der normal environmental conditions. Should the units be operated under aggressive environmental
conditions, i.e. air containing salt-, phosphate- or ammoniac extremely, a corrosion of the cupper-
and aluminium components can not be ruled out. The cupper- and aluminium components of the
KONVEKTA systems are not suitable for such extreme application conditions. We indicate emphat-
ically, that corrosion is not subject to warranties for defects. KONVEKTA does not take over any
warranties for defect, neither for corrosion nor for consequential damage resulting there from, nor
for damages caused by cleaning the systems with highly compressed or corrosion advancing sub-
stances.
4. Operation
Danger of accident!
Focussing your attention on the road traffic is of top priority
Only operate your air conditioning unit when the traffic situation allows it
Make sure you can clearly recognize and read all operation- and display-elements at any
time

BAKL40T12AD Edition: 01.03.2017 Page: 7/9
4.1. Function of the keys
Operating elements are placed on dashboard:
4.2. Operation of a/c system
•Start vehicle engine (refer to orig. operating instruction of the vehicle).
•The air conditioner is switched on by means of switch „ S1- ventilation“ and „ S2- A/C“.
•Adjust air volume by means of switch „ S1- ventilation“ “Position „I“ resp. „II“.
•If only ventilation is requested, use „ S1- ventilation“
•By means of the „Potentiometer“ the required room temperature can be pre-chosen.
Note:
The compressor can only operate, if switch „S2- A/C“.is in position „I“. If the desired temperature
is higher than the existing temperature or adjusted temperature is reached, compressor switches
off and condenser blowers stop running. If the desired temperature is lower than the existing tem-
perature the compressor switches on.
4.3. Temperature adjustment
−The desired temperature is adjusted by means of the „Potentiometer“.
5. Maintenance / Service
Please arrange regular dates for maintenance works and services with a KONVEKTA service sta-
tion, as indicated in maintenance schedule bus no .: WP07050618.
- Only qualified staff is allowed to carry out these works! -
For general instructions on repair – and maintenance works please contact via email:
[e-mail]
Danger of accidents!
Qualified staff in charge of installation and maintenance have to be trained in accordance with EN
378-Part 4 and (EC) No.307/2008 and must strictly follow the legal provisions.
Any works or modifications at the air conditioner which are carried out improperly can lead to mal-
function and so endanger operational reliability. We recommend having all works and modifications
carried out at an authorized KONVEKTA Service Station.
Before carrying out any maintenance works at your air conditioning unit, carefully read the
KONVKETA safety provisions (TD00052A

)in order to avoid any dangers and accidents!

On our website www.konvekta.com in category >service< you will find a survey of contact details of all our
service partners close to your location.

Source of supply: KONVEKTA AG, P.O. Box 2280, D-34607 Schwalmstadt
S1
switch venti-
lation
position
II
- ventilation fast
position 0- OFF
position I- ventilation slow
S2 switch A/C position 0- OFF
position I - ON
Poten-
tiometer
temperature
control
room temperature
Potentiometer
S1 S2

BAKL40T12AD Edition: 01.03.2017 Page: 8/9
5.1. Oil change Compressor type KVX
First oil change at the first maintenance of the vehicle. Then approx. every 3 years. At every oil
change the oil suction strainer has to be cleaned. Observe the oil quantity according to the com-
pressor type (see chapter: “Technical data compressor”).
5.2. Return air grid
Clean the return air grid in the passenger area monthly. In case of enormous dirt weekly.
5.3. Condenser coil
Always keep condenser coil fins clean. Severe soiling cause’s excess pressure within the a/c-unit
system and it automatically stops working.
Attention: The condenser coil fins have to be cleaned with compressed air at least once a year,
in case of severe soiling more often.
5.4. Troubleshooting
Only qualified staff is allowed to carry out these works!
Trouble Cause Repair by authorized Service Station only
a/c is not
running
thermostat open −check inside temperature
1
−re-adjust thermostat
1
electric connection disconnected −check electric connections at switch-
board
relay defective −check relay, replace if necessary
defrost thermostat has switched off −check evaporator blower, replace if nec-
essary
outside temperature too low (possible
icing of evaporator)
−switch on „ventilation“ only
1
evaporator coil dirty −clean evaporator coil with compressed
air
magnetic clutch −check connections at magnetic clutch
compressor does not compress −check high and low pressure, replace
compressor if necessary
excess pressure (pressure too high) −check axial fans
−check fuses
−clean condenser coil with compressed
air
excess pressure caused by high out-
side temperature
−run unit until pressure has stabilized
1
leakage in a/c unit, lack of refrigerant −check a/c unit for leakages
−refill refrigerant
low pressure, screen of expansion
valve clogged
−clean screen; replace dryer
Loud noise at
compressor
defective bearing at compressor −replace either bearing or entire com-
pressor
slack V-belt −check V-belt at compressor drive
1
By operator

BAKL40T12AD Edition: 01.03.2017 Page: 9/9
6. Warranty Conditions
The current „General Warranty Conditions KONVEKTA AG“ will apply. A copy will be furnished by
the warranty department. Please contact [email protected]
7. Waste disposal in accordance with legal provisions
After the phase of use the last proprietor is responsible for the adequate waste manage-
ment. The environmental regulations in the exporting country must be observed.
The following list contains the most important regulating literature, valid for the Federal Rep. of
Germany:
•
Resolution for dangerous substances
•
Resolution for used oil
•
Law for waste circulation (KRW/AfgG))
•
Law of water balance
•
Resolution for the proofs of utilization
and removal
•
Resolution for the waste management of old
cars and the adaptation of road prescriptions
•
Criminal Code (StGB) 28th section
„criminal acts against the environment”
§326 - Environment jeopardizing waste
management
•
Resolution (EC) No. 2037/2000 of the Euro-
pean Parliament and of the Council for mate-
rials that affect the ozone layer
•
Law of chemicals § 27 - penal prescrip-
tions
•
Resolution to prohibit certain ozone destroying
halogen hydrocarbons.
The used refrigerant endangers the environment. When dealing with refrigerants the existing pre-
scriptions and regulations are to be followed. Only qualified staff is allowed to carry out these
works!
Water endangering substances - acc. to §§19g-19l - are solid, liquid, and gaseous substances.
e.g.: mineral and tar oils (cooling oils), halogen containing organic combinations (refrigerants).
8. History of modification
V
e
r
sion
D
ate
N
ame
R
emark
file
A00 13.03.2007 S. Pfluger source file BAKL40T12AD
A01 10.07.2007 B. Keßler Added KL45T and technical data BAKL40T12AD
A02 20.11.2007 B. Keßler Fact 1.1 has now been replaced BAKL40T12AD
A03 20.04.2009 B. Keßler Pkt 1.2 updated; TM31 replaced by HDC 33. BAKL40T12AD
A04 14.10.2014 B. Keßler Added KL46 BAKL40T12AD
A05 21.05.2015 B. Keßler 1.1 pressure switches deleted BAKL40T12AD
A06 28.06.2016 B. Keßler Technical Datsa updated BAKL40T12AD
A07 01.03.2017 B. Keßler Information on the operating instructions and
technical data expanded with F-gas-regulation
BAKL40T12AD