Lennox ROOFTOP FLEXY FCA 60 Installation and operating instructions

INSTALLATION
OPERATING &
MAINTENANCE MANUAL
ROOFTOP
FLEXY™
English
August 2003

IOM / ROOF-TOP FLEXY™ Series - Page 1
CONTENTS
The present manual applies to the following ROOFTOP versions :
FCA 60 - FCA 70 - FCA 85 - FCA 100 - FCA 120 - FCA 140 - FCA 160 - FCA 190
FCK 60 - FCK 70 - FCK 85 - FCK 100 - FCK 120 - FCK 140 - FCK 160 - FCK 190
FHA 60 - FHA 70 - FHA 85 - FHA 100 - FHA 120 - FHA 140 - FHA 160 - FHA 190
FHK 60 - FHK 70 - FHK 85 - FHK 100 - FHK 120 - FHK 140 - FHK 160 - FHK 190
FDA 60 - FDA 70 - FDA 85 - FDA 100 - FDA 120 - FDA 140 - FDA 160 - FDA 190
FDK 60 - FDK 70 - FDK 85 - FDK 100 - FDK 120 - FDK 140 - FDK 160 - FDK 190
FGA60-FGA70-FGA85-FGA100-FGA120-FGA140-FGA160-FGA190
FGK 60 - FGK 70 - FGK 85 - FGK 100 - FGK 120 - FGK 140 - FGK 160 - FGK 190
FXA25-FXA30-FXA35-FXA40- FXA55 - FXA70 - FXA85 - FXA100-FXA110 - FXA140 - FXA170
FXK 25 - FXK 30 - FXK 35 - FXK 40 - FXK 55 - FXK 70 - FXK 85 - FXK 100 - FXK 110 - FXK 140 - FXK 170
The technical information and specifications contained in this manual are for reference only. The manufacturer reserves the right to modify these without
warning and without obligation to modify equipment already sold.
Ref.FLEXY_IOM/0803-E
NOTES FOR UNIT FITTED WITH GAS BURNER :
THE UNIT MUST BE INSTALLED IN ACCORDANCE WITH LOCAL
SAFETY CODES AND REGULATIONS AND CAN ONLY BE USED IN
WELL VENTILLATED AREA.
PLEASE READ CAREFULLY THE MANUFACTURER'S INSTRUCTIONS
BEFORE STARTING THIS UNIT.
THIS MANUAL IS ONLY VALID FOR UNITS DISPLAYING THE
FOLLOWING CODES: GB IR GR DA NO FI IS
In case these symbols are not displayed on the unit, please refer to the
technical documentation which will eventually detail any modifications
required to the installation of the unit in a particular country.
INSTALLATION
OPERATION
MAINTENANCE MANUAL

Page 2 - IOM / ROOF-TOP FLEXY™ Series
CONTENTS
IMPORTANT NOTICE......................................................................................... 3
INSTALLATION
TRANSPORT- HANDLING .............................................................................................. 4
INSTALLATION ............................................................................................................... 12
INSTALLATION ONAROOFMOUNTINGFRAME........................................................... 13
INSTALLATION ONPOSTS ............................................................................................ 15
COMMISSIONING........................................................................................................... 16
OPERATION
VENTILATION ................................................................................................................. 21
AIRFLOWBALANCING.................................................................................................. 23
FILTERS .........................................................................................................................39
FANSTARTOPERATION................................................................................................. 40
FXAIRFLOW BALANCING ............................................................................................. 41
HOTWATERCOILS ....................................................................................................... 44
GAS BURNERS.............................................................................................................. 45
CONTROL FUNCTIONS
USING THE KP 17 COMFORT DISPLAY........................................................................ 57
USINGTHEKP02MAINTENANCEDISPLAY................................................................. 58
USINGTHEKP07REMOTEGRAPHICALDISPLAY ...................................................... 72
BMS CONTACTS KIT ...................................................................................................... 81
CLIMATIC™PARAMETERS............................................................................................ 82
CONTROLINTERFACECLIMALINK/CLIMALOOK......................................................... 88
WIRING DIAGRAMS
ELECTRICALWIRINGDIAGRAMSLISTOFITEMS ....................................................... 96
ELECTRICALWIRINGDIAGRAMS .............................................................................. 100
TROUBLESHOOTING
SAFETYANDERRORCODES..................................................................................... 117
MAINTENANCEDIAGNOSTIC ..................................................................................... 123
MAINTENANCEPLAN .................................................................................................. 126
WARRANTY .................................................................................................................. 129
CERTIFICATES
ISO 9001 CERTIFICATION ........................................................................................... 130
PEDCERTIFICATION OF CONFORMITY..................................................................... 131
GLASWOOLFIRECLASS ........................................................................................... 132
33KWGAS BURNER CE CERTIFICATION OF CONFORMITY ................................... 133
60KWGAS BURNER CE CERTIFICATION OF CONFORMITY ................................... 134
120KWGAS BURNER CE CERTIFICATION OFCONFORMITY................................. 135
180 kWGASBURNERCECERTIFICATION OF CONFORMITY ................................. 136
INSULATIONFIRECLASS ........................................................................................... 137
CONTENTS

IOM / ROOF-TOP FLEXY™ Series - Page 3
IMPORTANT NOTICE
IMPORTANT NOTICE
All work on the unit must be carried out by a qualified and authorised employee.
Non-compliance with the following instructions may result in injury or serious accidents.
Work on the unit:
• The unit shall be isolated from the electrical supply by disconnection and locking using the
main isolating switch.
• Workers shall wear the appropriate personal protective equipment (helmet, gloves,
glasses, etc.).
Work on the electrical system:
• Work on electric components shall be performed with the power off (see below) by
employees having valid electrical qualification and authorisation.
Work on the refrigerating circuit(s):
• Monitoring of the pressures, draining and filling of the system under pressure shall be
carried out using connections provided for this purpose and suitable equipment.
• To prevent the risk of explosion due to spraying of coolant and oil, the relevant circuit shall
be drained and at zero pressure before any disassembly or unbrazing of the refrigerating
parts takes place.
• There is a residual risk of pressure build-up by degassing the oil or by heating the
exchangers after the circuit has been drained. Zero pressure shall be maintained by
venting the drain connection to the atmosphere on the low pressure side.
• The brazing shall be carried out by a qualified brazier. The brazing shall comply with stan-
dard NF EN1044 (minimum 30% silver).
Replacingcomponents:
• In order to maintain CE marking compliance, replacement of components shall be carried
out using spare parts, or using parts approved by Lennox.
• Only the coolant shown on the manufacturer's nameplate shall be used, to the exclusion of
all other products (mix of coolants, hydrocarbons, etc.).
CAUTION:
In the event of fire, refrigerating circuits can cause an explosion and spray coolant gas and oil.

Page 4 - IOM / ROOF-TOP FLEXY™ Series
TRANSPORT - HANDLING
Figure 1
DELIVERY CHECKS
On receipt of a new equipment please check the following
points. It is the customer's responsibility to ensure that the
products are in good working order:
- The exterior has not been damaged in any way.
- The lifting and handling equipment are suitable for the
equipment and comply with the specifications of the handling
instructions enclosed here-in.
- Accessories ordered for on site installation have been
delivered and are in good working order.
- The equipment supplied corresponds to the order and
matches the delivery note.
If the product is damaged, exact details must be confirmed
in writing by registered post to the shipping company within
48 hours of delivery (working days). A copy of the letter must
be addressed to Lennox and the supplier or distributor for
information purposes. Failure to comply will invalidate any
claim against the shipping company.
RATING PLATE
The rating plate provides a complete reference for the model
and ensures that the unit corresponds to the model ordered.
It states the electrical power consumption of the unit on start-
up, its rated power and its supply voltage. The supply voltage
must not deviate beyond +10/-15 %. The start-up power is
the maximum value likely to be achieved for the specified
operational voltage. The customer must have a suitable
electrical supply. It is therefore important to check whether
the supply voltage stated on the unit's rating plate is
compatible with that of the mains electrical supply. The rating
plate also states the year of manufacture as well as the type
of refrigerant used and the required charge for each
compressor circuit.
STORAGE
When units are delivered on site they are not always required
immediately and are sometimes put into storage. In the event
of medium to long-term storage, we recommend the following
procedures :
- Ensure that there is no water in the hydraulic systems.
-Keeptheheat exchanger coversinposition(AQUILUXcover).
- Keep protective plastic film in position.
- Ensure the electrical panels are closed.
- Keep all items and options supplied in a dry and clean
place for future assembly before using the equipment.
MAINTENANCE KEY
On delivery we recommend that you keep the key which is
attached to an eyebolt in a safe and accessible place. This
allows you to open the panels for maintenance and
installation work.
The locks are ¼ turn +
then tighter (figure 2).
CONDENSATE DRAINS
The condensate drains are not assembled when delivered
and are stored
in the electrical panel with their clamping collars.
To assemble them, insert them
on the condensate tray outlets
and use a screwdriver to
tighten the collars (figure 3).
Figure 3
Figure 2

IOM / ROOF-TOP FLEXY™ Series - Page 5
TRANSPORT - HANDLING
DIMENSIONS AND WEIGHTS
Condensation Airflow configuration
WEIGHT (kg) SLING
std std high
Standard Centrifugal 12345678 gas gas 1 2 3
FC/FH 060 - Cooling only and heat pump
X - X------X2825 2255 1470 630 1060 - - 2210 - -
X - - - - X - - X - 2825 2255 1470 630 1090 - - 2210 - -
X - - X X - X X - - 2825 2285 1470 630 1090 - - 2210 - -
- X X------X2875 2255 2070 630 1230 - - 2590 1855 -
- X - - - X - - X - 2875 2255 2070 630 1260 - - 2590 1855 -
- X - X X - X X - - 2875 2285 2070 630 1260 - - 2590 1855 -
FG 060 - GAS
X - X------X2825 2255 1470 630 - 1210 1280 2210 - -
- X X------X2875 2255 2070 630 - 1380 1450 2590 1855 -
FC/FH 070 - Cooling only and heat pump
X - X------X2825 2255 1470 630 1075 - - 2210 - -
X - - - - X - - X - 2825 2255 1470 630 1100 - - 2210 - -
X - - X X - X X - - 2825 2285 1470 630 1100 - - 2210 - -
- X X------X2875 2255 2070 630 1245 - - 2590 1855 -
- X - - - X - - X - 2875 2255 2070 630 1270 - - 2590 1855 -
- X - X X - X X - - 2875 2285 2070 630 1270 - - 2590 1855 -
FC/FH 070 - GAS
X - X------X2825 2255 1470 630 - 1230 1300 2210 - -
- X X------X2875 2255 2070 630 - 1400 1470 2590 1855 -
FC/FH 085 - Cooling only and heat pump
X - X------X3785 2255 1495 630 1220 - - 2830 2330 -
X - - - - X - - X - 3785 2255 1495 630 1270 - - 2830 2330 -
X - - X X - X X - - 3785 2285 1495 630 1275 - - 2830 2330 -
- X X------X3835 2255 2080 630 1435 - - 3230 2430 1870
- X - - - X - - X - 3835 2255 2080 630 1485 - - 3230 2430 1870
- X - X X - X X - - 3835 2285 2080 630 1490 - - 3230 2430 1870
FC/FH 085 - GAS
X - X------X3785 2255 1495 630 - 1320 1390 2830 2330 -
- X X------X3835 2255 2080 630 - 1535 1605 3230 2430 1870
FC/FH 100 - Cooling only and heat pump
X - X------X3785 2255 1495 630 1280 - - 2830 2330 -
X - - - - X - - X - 3785 2255 1495 630 1320 - - 2830 2330 -
X - - X X - X X - - 3785 2285 1495 630 1320 - - 2830 2330 -
- X X------X3835 2255 2080 630 1495 - - 3230 2430 1870
- X - - - X - - X - 3835 2255 2080 630 1545 - - 3230 2430 1870
- X - X X - X X - - 3835 2285 2080 630 1545 - - 3230 2430 1870
FC/FH 100 - GAS
X - X------X3785 2255 1495 630 - 1380 1450 2830 2330 -
- X X------X3835 2255 2080 630 - 1595 1665 3230 2430 1870
HEIGHT(mm) HOOD (mm) WIDTH (mm)
LENGTH(mm)

Page 6 - IOM / ROOF-TOP FLEXY™ Series
TRANSPORT - HANDLING
DIMENSIONS AND WEIGHTS
WEIGHT (kg) SLING
std std high
Standard Centrifugal 12345678 gas gas 1 2 3
FC/FH 120 - Cooling only and heat pump
X - X------X3585 2255 1470 630 1530 - - 2700 - 2080
X - - - - X - - X - 3585 2255 1470 630 1580 - - 2700 - 2080
X - - X X - X X - - 3585 2285 1470 630 1600 - - 2700 - 2080
- X X------X3635 2255 1930 630 1805 - - 3000 2410 1880
- X - - - X - - X - 3635 2255 1930 630 1855 - - 3000 2410 1880
- X - X X - X X - - 3635 2285 1930 630 1875 - - 3000 2410 1880
FG 120 - GAS
X - X------X4035 2255 1470 630 - 1840 1890 3000 - 2310
- X X------X4085 2255 1930 630 - 2115 2165 3300 2700 2080
FC/FH 140 - Cooling only and heat pump
X - X------X3585 2255 1470 630 1630 - - 2700 - 2080
X - - - - X - - X - 3585 2255 1470 630 1680 - - 2700 - 2080
X - - X X - X X - - 3585 2285 1470 630 1700 - - 2700 - 2080
- X X------X3635 2255 1930 630 1905 - - 3000 2410 1880
- X - - - X - - X - 3635 2255 1930 630 1955 - - 3000 2410 1880
- X - X X - X X - - 3635 2285 1930 630 1975 - - 3000 2410 1880
FG 140 - GAS
X - X------X4035 2255 1470 630 - 1920 1970 3000 - 2310
- X X------X4085 2255 1930 630 - 2000 2050 3300 2700 2080
FC/FH 160 - Cooling only and heat pump
X - X------X3595 2255 2070 900 2050 - - 2700 - 2090
X - - - - X - - X - 3595 2255 2070 900 2120 - - 2700 - 2090
X - - X X - X X - - 3595 2285 2070 900 2140 - - 2700 - 2090
- X X------X3645 2255 2070 900 2275 - - 2700 - 2090
- X - - - X - - X - 3645 2255 2070 900 2345 - - 2700 - 2090
- X - X X - X X - - 3645 2285 2070 900 2365 - - 2700 - 2090
FG 160 - GAS
X - X------X4045 2255 2070 900 - 2410 2460 3000 - 2320
- X X------X4095 2255 2070 900 - 2635 2685 3000 - 2320
FC/FH 190 - Cooling only and heat pump
X - X------X3595 2255 2070 900 2175 - - 2700 - 2090
X - - - - X - - X - 3595 2255 2070 900 2245 - - 2700 - 2090
X - - X X - X X - - 3595 2285 2070 900 2265 - - 2700 - 2090
- X X------X3645 2255 2070 900 2400 - - 2700 - 2090
- X - - - X - - X - 3645 2255 2070 900 2470 - - 2700 - 2090
- X - X X - X X - - 3645 2285 2070 900 2490 - - 2700 - 2090
FG 190 - GAS
X - X------X4045 2255 2070 900 - 2540 2600 3000 - 2320
- X X------X4095 2255 2070 900 - 2765 2825 3000 - 2320
HEIGHT(mm)
CASQUETTE (mm)
Condensation Airflow configuration
WIDTH (mm)
LENGTH(mm)

IOM / ROOF-TOP FLEXY™ Series - Page 7
TRANSPORT - HANDLING
HANDLING
The equipment can be moved using the lifting holes on the
top of the unit.
The "sling" length is the value that we recommend for safe
handling of the equipment.
Some units can only be supported by four slings at right-
angles. Others require different lengths (see figures 4).
It is essential that all lifting holes are used and that the slings
are all of the same size to avoid damaging the equipment.
Sling length = 2210 mm
for angle = 45°C
FC.../FH.../FD.../FG...060 &070
LENGTH HEIGHT WIDTH AUVENT WEIGHT (kg)
lateral ventil standard
MODELS mm mm mm mm mm kg
FX 025 4070 1635 1055 490 600 950
FX 030 4070 1635 1055 490 600 980
FX 035 4750 2255 1290 490 600 1400
FX 040 4750 2255 1290 490 600 1450
FX 055 4750 2255 1290 490 600 1600
FX 070 5050 2255 1725 890 600 1800
FX 085 5050 2255 1725 890 600 1900
FX 100 5050 2255 1725 890 600 2000
FX 110 5650 2255 2000 860 - 2620
FX 140 5650 2255 2000 860 - 2620
FX 170 5650 2255 2000 860 - 2650
DIMENSIONS AND WEIGHTS
Figure 4 for all handling
drawings - pages 7 to11

Page 8 - IOM / ROOF-TOP FLEXY™ Series
TRANSPORT - HANDLING
FC.../FH.../FD.../FG...060&070 with centrifugal fans
Sling length = 2590 mm
for angle = 45°C
Sling length = 2330 mm
for angle = 64,5°C
FC.../FH.../FD.../FG...085 &100
Sling length = 2430 mm
for angle = 45°C
FC.../FH.../FD.../FG...085&100 with centrifugal fans
Sling length = 3230 mm
for angle = 45°C
Sling length = 2830 mm
for angle = 45°C
Sling length = 1870
mm
for angle = 45°C
Figure 3 for all handling drawings - pages 7 to11

IOM / ROOF-TOP FLEXY™ Series - Page 9
TRANSPORT - HANDLING
Sling length = 2080 mm
for angle = 45°C
FC.../FH.../FD...120& 140
Sling length = 2700 mm
for angle = 45°C
Sling length = 2410 mm
for angle = 45°C
FC.../FH.../FD... 120 & 140 with centrifugal fans
Sling length = 2080 mm
for angle = 45°C
FG... 120 & 140 with gas burner
Sling length = 2700 mm
for angle = 45°C
Sling length = 3000 mm
for angle = 45°C
Sling length = 1880 mm
for angle = 45°C
Figure 3 for all handling drawings - pages 7 to11

Page 10 - IOM / ROOF-TOP FLEXY™ Series
TRANSPORT - HANDLING
Sling length = 2700 mm
for angle = 45°C
FG... 120 & 140 with gas burner and centrifugal fans
Sling length = 3300 mm
for angle = 45°C
Sling length = 2080 mm
for angle = 45°C
Sling length = 2090 mm
for angle = 45°C
FC.../FH.../FD...160& 190
FC.../FH.../FD... 160 & 190 with centrifugal fans
Sling length = 2700 mm
for angle = 45°C
Sling length = 2320 mm
for angle = 45°C
FG... 160 & 190
FG... 160 & 190 with centrifugal fans
Sling length = 3000 mm
for angle = 45°C
Figure 3 for all handling drawings - pages 7 to11

IOM / ROOF-TOP FLEXY™ Series - Page 11
1
1
2
TRANSPORT - HANDLING
FX 25 & 30
Sling length 1 = 3000 mm
Sling length 2 = 2350 mm
1
1
2
FX 35 - 40 - 55
Sling length 1 = 3700 mm
Sling length 2 = 2850 mm
1
1
2
Sling length 1 = 3900 mm
Sling length 2 = 3000 mm
FX 70 - 85 - 100
1
1
2
Sling length 1 = 4300 mm
Sling length 2 = 3250 mm
FX 110 - 140 - 170

Page 12 - IOM / ROOF-TOP FLEXY™ Series
PRELIMINARY CHECK
Before installing the equipment, the following items MUST be
checked :
- Is there sufficient space for the equipment?
- Is the surface on which the equipment is to be installed
sufficiently solid to withstand its weight ? A detailed
study of the frame must be made beforehand.
- Do the supply and return ductwork openings excessively
weaken the structure?
- Are there any obstructing items which could hinder the
operation of the equipment?
- Does the electrical power available correspond to the
equipment's electrical specifications?
- Is drainage provided for the condensate?
- Is there sufficient access for maintenance?
- Installation of the equipment could require different
lifting methods which may vary with each installation
(helicopter or crane). Have these been evaluated ?
- Ensure that the unit is installed in accordance with the
installation instructions and applicable codes.
- Check to ensure that the refrigerant lines do not rub
against the cabinet or against other refrigerant lines.
Ingeneral,makesurenoobstacles(walls,treesor roof ledges)
are obstructing the duct connections or hindering assembly
and maintenance access.
INSTALLATION
Figure 5
INSTALLATION REQUIREMENTS
The surface on which the equipment is to be installed must
be clean and free of any obstacles which could hinder the
flow of air to the condensers:
- Avoid uneven surfaces
- Avoid installing two units side by side or close to each
other as this may restrict the airflow to the condensers.
Before installing a packaged rooftop unit it is important to
understand :
- The direction of prevailing winds.
- The direction and position of air flows.
- The external dimensions of the unit and the dimensions
of the supply and return air connections.
- The arrangement of the doors and the space required to
open them to access the various components.
Figure 5 shows the required clearances and dimensions.
CONNECTIONS
- Ensure that all the pipework crossing walls or roofs are
secured and insulated.
- To avoid condensation problems, be sure all pipes are
insulated according to temperatures of fluids and type of
rooms.
NOTE : The AQUILUX protection sheets fitted to the finned
surfaces must be removed prior to start up.
MODELS ABCD
FC/FH/FG/FD
60 !!
!!
!140 1400 2000 1400 2300
160 & 190 2000 2000 2000 2300
FX
25 & 30 * 1100 * 1700
35 !!
!!
!55 * 1300 * 2300
70 !!
!!
!100 * 1700 * 2300
110 !!
!!
!170 * 2000 * 2300
* : according to connection

IOM / ROOF-TOP FLEXY™ Series - Page 13
2
INSTALLATION ON A ROOFMOUNTING FRAME
As levels are adjustable, observe the following
recommendations for correct installation of the equipment.
Above all, ensure that all the adjustable returns are
facing outward (1 - figure 6).
They are usually turned inside-out for transport.
Place the roof mounting frame on the trimmer beam by
first lining up the inlet and then the outlet. (2 - figure 7).
After levelling the frame, fix the surface flaps onto the
trimmer.
1
Figure 6
Figure 7
Figure 8

Page 14 - IOM / ROOF-TOP FLEXY™ Series
INSTALLATION ON A ROOFMOUNTING FRAME
When the frame is correctly positioned, it is
essential to secure the assembly with welding
seam (20 to 30 mm for every 200 mm) along
the outside, or by using an alternative method
(1 - figure 9).
Assembly joint (1 - figure 10)
Insulate the frame before installation. We recommend the minimum
application of 25 mm thick insulation.
Check that the covering is continuous and watertight (2 - figure 10).
CAUTION : To be effective, it must finsh behind the lip (3 - figure 10)
Before installing the equipment, make sure that the assembly seal is not damaged.
Once in position, the bottom of the equipment must be horizontal and against the roofcurb as shown on figure 11.
The installer must comply to local authority standards and specifications.
1
2
3
Figure 10
Figure 11
1
Figure 9

IOM / ROOF-TOP FLEXY™ Series - Page 15
INSTALLATION ON POSTS
The unit can be fitted on corner posts using the frame provided. The minimum height of the posts should be 400mm.
Figure 12

Page 16 - IOM / ROOF-TOP FLEXY™ Series
THIS WORK MUST ONLYBE CARRIED OUT
BY TRAINED REFRIGERATION ENGINEERS
Before connecting the power :
- Ensure that the power supply between the building and
the unit meets local authority standards and that the
cable specification satisfies the start-up and operating
conditions.
- Ensure that the electrical connections in the control
panel and on the motors are secure.
- Ensure that all drive motors are secure.
- Ensure that the adjustable pulley blocks are secure and
that the belt is tensioned with the transmission correctly
aligned.
- Using the electrical wiring diagram, check the conformity
of the electrical safety devices (circuit breaker settings,
presence and rating of fuses).
At this point attach the manometers to the refrigerant circuit
Powering up the system with the unit isolating
switch
- Close the blower circuit breaker and the 24V control.
- Power up the unit by closing the isolator switch. At this
point the blower should start unless the CLIMATIC™
does not energise the contactor. In this particular case
the blower can be forced by bridging the COM and NO
wires on the connector J1 on the CLIMATIC controller.
Once the fan is running check the rotation direction.
Refer to the rotation arrow on the fan.
- The fan and other components direction of rotation is
checked during an end of line test. They should
therefore all turn in the same direction.
- If they run in the opposite direction, disconnect the
power supply to the machine at the building's mains
switch, reverse two phases of the incoming supply to the
machine and try again.
Using CLIMATIC™
- Check the voltages recorded against the rated values, in
particular on the system supply fans.
- If the readings on the fans are outside the limits, this
indicates excessive air flow which will affect the
thermodynamic performance. Refer to the "Air flow
balancing" section.
COMMISSIONING
1. Check the configuration
- You will need a KP02 maintenance controller or
CLIMALOOK with KP 14 interface.
1Liquid crystal display
2Raise/lower keys
3"FILTER" Led (flashing red)
4"ADDRESS" key
5"MODE" key
6"VALUE" key
7"UNIT RUNNING" led
8"MODE" led
9"GENERAL ALARM" led.
- The jumpers are
factory set and the
configuration switches
are adjusted
depending on the
option selection and
the type of unit.
- Close the 24V control circuit breakers
- The CLIMATIC™ is starting. Wait for 30 seconds.
1.1 Check and adjust the factory configuration
- Reset the DAD smoke detector (if fitted)
Figure 14
Figure 13
Figure 16
Figure 15

IOM / ROOF-TOP FLEXY™ Series - Page 17
Check the setpoints on CLIMATIC™ (LF 20).
COMMISSIONING
C0 Password technician Level 63
C98 Type of Unit Refer to configuration table LF20
C99 Type of Unit [off] Flexy [on] Linea On or OFF
C103 Humidity and enthalpy management Option [off] LINEA
[on] only Flexy with Advanced Pack
C77 (Linea) Authorisation of defrost. Threshold of temperature
of refrigerant fluid ( in°C) 1.0°C for R407c -3.0°C for R22
C79 Defrost cycle end value indicating the nr of Start-ups of the
condenser fan to signify the end of defrost Linea set to1 Flexy set to 3
C101 Activation of all seasons control option [ON] / [OFF] if fitted
C73 All seasons control option on FLEXY -
Otherwise – unloading 50% of the compressors in cooling
mode
Set to 20.0°C for Linea
Set to 12°C for Flexy
C74 If option all seasons control – shut down condenser fans -
Otherwise - 100% unloading of compressors in cooling
mode -
Set to 12.0°C for Linea
Set to 5.0°C for Flexy
C49 Threshold of activation of the power exhaust fan according
to the position of the economiser damper (in %) Set to 50%
C46 Number of minutes of anticipation per degrees. This allows
an anticipated start-up in the morning mode depending on
the outside temperature. Set to 0
C83 Maximum usable power for electric heat (in %)
C90 Choice of operating mode for KP17 [ON] = KP17 in ON / OFF mode
C91 Identification number for the J-Bus connections
C93 Identification number for the connections link between
boards
C94 Number of boards linked on the bus
C95 Selection of the operating mode for KP017
C96 Selection of exchange mode for room temperature and
humidity-
C97 Selection of exchange mode for outdoor temperature and
humidity
C100 Activation of the dual-speed option for fan supply (Flexy)
C101 Activation of the all seasons control option
C102 Activation of the optimised defrost option
C05 Fault reset Set to ON
C06 Remote control, On / Off Unit Set to ON ( the unit should start)

Page 18 - IOM / ROOF-TOP FLEXY™ Series
Configuration table LF20
COMMISSIONING
F.A050 11
F.A060 12
F.A070 13
F.A085 14
F.A100 15
F.A120 16
F.A140 17
F.A160 18
F.A190 19
FXA025 20
FXA030 21
FXA035 22
FXA040 23
FXA055 24
FXA070 25
FXA085 26
FXA100 27
FXA110 28
FXA140 29
FXA170 30
F.K050 111
F.K060 112
F.K070 113
F.K085 114
F.K100 115
F.K120 116
F.K140 117
F.K160 118
F.K190 119
FXK025 120
FXK030 121
FXK035 122
FXK040 123
FXK055 124
FXK070 125
FXK085 126
FXK100 127
FXK110 128
FXK140 129
FXK170 130
Switches on KP01
1 = on .......................Option : pressure pick-up on air 500 pa (on FLEXY™ off = sensor 1000 pa)
2 = on | 3 = off...................Option : hot water coil
2 = off | 3 = on ...................Option : electrical heater
2 = on | 3 = on ...................Option : gas burner
4 = on .......................Option : cycle reversing valve, compressors (heat pump)
5 = on .......................Option : heating of great power / or / pump (except freezing of the hot water coil)
6 = on .......................Option : fresh air, economiser
7 = on .......................Option : fresh air, all fresh air
8 = on .......................Option : KP02 / KP17
POWERING THE UNIT
- Power up the unit by closing the isolator switch (if fitted).
- Close all circuit breakers and power up the unit, remove
the bridge on connector J14 if fitted.
- If now only one of the components rotates in the wrong
direction, disconnect the power supply at the machine's
isolator switch (if fitted) and reverse two of the
component's phases on the terminal within the electrical
panel.
- Check the current drawn against the rated values, in
particular on the supply fan.
- If the readings on the fan are outside the specified limits,
this usually indicates excessive air flow which will affect
the life expectancy and the thermodynamic performan-
ces of the unit. This will also increase the risks of water
ingress into the unit. Refer to the "air flow balancing"
section to correct the problem.
At this point attach the manometers to the refrigerant circuit.
RUN TEST
Start unit in cooling mode
Thermodynamic readings using manometers and prevailing
environmental conditions.
No rated values are given here. These depend on the
environmental conditions both outside and inside the building
during operation. However, an experienced refrigeration
engineer will be able to detect any abnormal machine
operation.
Safety test
- "Dirty filter" detection test : vary the set-point value in
respect to the air pressure value. Observe the response
of the CLIMATIC™.
- Same procedure for detecting "Missing filter" or "Air flow
detection".
- Check the smoke detection function (if fitted).
- Check the Firestat by pressing the test button(if fitted).
- Disconnect the circuit breakers of the outdoor fans and
check the high pressure cut-out points on different
refrigerant circuits.
Reverse cycle test
This test is designed to check the good operation of the 4-
way reversing valves on heat pump reversible systems. Start
the reverse cycle by adjusting the cold or hot temperature
threshold data according to the indoor and outdoor conditions
at the time of test.