Clima-Flex CliFC Series Guide

INSTALLATION, OPERATION AND
OPERATION MANUAL
CLIFC VARIABLE SERIE
HORIZONTAL VARIABLE FAN & COIL
400 / 600 / 800 / 1,000 / 1,200 /
1,300 / 1,600 / 2,000 CFM

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CLIFC VARIABLE - INSTALLATION, OPERATION AND MAINTENANCE MANUAL
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CLIFC VARIABLE - INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Content
Nomenclature.....................................................4
Standard features ..............................................5
Components.......................................................6
Operation............................................................7
Ubicación / Instalación......................................8
Performance & sound data...............................9
Dimentional data...............................................10
Electrical data ...................................................18
Maintenance......................................................19
Control...............................................................23

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CLIFC VARIABLE - INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Nomenclature
CLIFC H 400 0 3 1 R F 0 P D 1
Type
H - Horizontal
Capacity
Low Static
400 - 400 CFM
600 - 600 CFM
800 - 800 CFM
1000 - 1,000 CFM
1300 - 1,300 CFM
High Static
1200 - 1,200 CFM
1600 - 1,600 CFM
2000 - 2,000 CFM
Voltage
0 - 115 - 127 / 1 / 60
Cooling rows
3 - 3 rows
4 - 4 rows
6 - 6 rows
Heating rows
0 - 0 rows
1 - 1 row
2 - 2 rows
Conexión hidráulica
R - Right
L - Left
Fan type
F - EC Fan
Corrosion protection
E - Coil protection
0 - N/A
Plenum
P - With plenum
N - N/A
Filter
D - Disposable
N - N/A
Control
1 - VLD
2 - Microset
0 - N/A

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CLIFC VARIABLE - INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Standard features
Current air conditioning systems must comply with two fundamental characteristics: efficiently provide the comfort
required by the users and offer energy savings to reduce the environmental impact and operating costs.
To cope with this challenge Clima-Flex has developed a unit that provides comfort and energy savings at the same
time, the variable Fan & Coil unit available in vertical and horizontal configuration.
The standard features of the Variable F&C are:
It’s capable of operating in the entire range of the fan motor (from 1% to 100%), which allows it to adjust very
precisely to the demand at any given time. Modulating its operation and saving electrical energy.
It reduces moisture significantly during normal operation, even when the unit is in “standby” mode. By reducing the
humidity a more pleasant atmosphere is created for the users and the useful life of the elements of the room are
prolonged (carpet, bedding, wallpaper, etc.)
The equipment is small in size, easy to install, quick and simple to maintain. Low noise level, especially in moments
of low latent heat such as night. Flexible connection configuration (left or right). Configurable control range, with a
variation of less than +/- 1 ° F / ° C. Quick water connections that use flexible plastic hose. Hydronic operation

6 CLIMA-FLEX
CLIFC VARIABLE - INSTALLATION, OPERATION AND MAINTENANCE MANUAL
The Variable Fan & Coil is designed with efficiency and performance in mind to meet ASHRAE 90.1 and AHRI RFC
440. The manufacturing process meets UL 1995 ETL safety standard. Our manufacturing plant is ISO 9001:2015
quality certified.
• Aluminum / Copper coil: Allows for high-efficiency temperature transfer. Long lasting material that is easy to
maintain and repair. Our certified coils are manufactured and tested in-house.
• Centrifugal fans: Sturdy, reliable and silent.
• Electronic 2 or 3 way valve: With smart actuator to control water flow to the coil very precisely to maintain the
injection temperature.
• Programmable digital thermostat: With 5 daily time schedules and humidity sensor. Aesthetic design, easy to
use and multiple programming options.
• Temperature sensors: Analog readings for precise temperature control.
• Condensate tray: Includes anti-bacterial coating.
• Filter Casing: Includes filter holder box, easy access.
MAIN COMPONENTS DIAGRAM
Components
Aluminum / Copper coil
Condensate tray
Centrifugal fans
Disposable filters

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CLIFC VARIABLE - INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Operation
The variable Fan & Coil is controlled by a thermostat, the Set Point is defined to reach the desired comfort
temperature. The system performs calculations considering an average between the air injection sensor, the room
sensor and the rate at which the temperature changes, adjusting the operation of the system at different speeds to
satisfy the requested temperature as soon as possible.
As the temperature approaches the “Set Point” the system regulates the fan speed until reaching the desired
temperature, thus saving electrical energy by always operating at the minimum necessary capacity to meet and
maintain the Set Point. The modulating water valve keeps the injection temperature constant by regulating the
chilled water flow.
The Variable F&C reduces the humidity at all times automatically by keeping the temperature of the coil below the
dew point of the room, this causes any humidity present to condense and be removed by the condensate tray.
The entire system increases and reduces the speed of the fan to meet the changes of the demand. The logic of
operation starts from the premise that once the Set Point is reached the demand is lower and the system is not
required to operate at a higher capacity. When the demand (either cooling or heating) begins to decrease, the
system decreases the electricity consumption; because it decreases the energy delivered to the fan. The unit
becomes progressively quieter as it reaches the Set Point, being of special importance during night operation.
When the Set Point temperature is reached, the Variable F&C does not shut down, it keeps operating at a very
low percentage (5-10%) to maintain the temperature, because of this moisture is removed at all times helping to
maintain a more comfortable and healthy atmosphere for the users.
The Variable F&C system performs optimally in installations with a primary water circuit with variable pumping. Due
to its proven results to control humidity this equipment has had great acceptance in: offices, residences, hospital
rooms, banks and any place where temperature and humidity control is needed. The Variable F&C unit operates
under the following principle: “It operates at the minimum capacity required to maintain the set conditions at all times
and adjusts according to changes”.

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CLIFC VARIABLE - INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Ubicación / Instalación
Installation detail
500 mm
Service clearance
Support structure
Roof
Suspension rod
Nut
Sealing washer
Unit
Return Air

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CLIFC VARIABLE - INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Performance & sound data
Model Side Fan # Fans Voltage Phase Hertz RPM WATTS RLA A (H) A(M) A(L) dB W
(Lbs)
400 D Variable 1 115 1 50/60 815 38 0.5 0.5 ≤55 69
400 I Variable 1 115 1 50/60 815 38 0.5 0.5 ≤55 69
600 D Variable 1 115 1 50/60 1150 50 0.64 0.64 ≤55 76
600 I Variable 1 115 1 50/60 1150 50 0.64 0.64 ≤55 76
800 D Variable 1 115 1 50/60 1200 48 0.62 0.62 ≤55 89
800 I Variable 1 115 1 50/60 1200 48 0.62 0.62 ≤55 89
1000 D Variable 1 115 1 50/60 1200 48 0.62 0.62 ≤55 105
1000 I Variable 1 115 1 50/60 1200 48 0.62 0.62 ≤55 105
1300 D Variable 2 115 1 50/60 2240 120 3.6 2.21 ≤59 120
1300 I Variable 2 115 1 50/60 2240 120 3.6 2.21 ≤59 120
1200 D Variable 2 115 1 50/60 2330 310 6.2 2.51 ≤59 135
1200 I Variable 2 115 1 50/60 2330 310 6.2 2.51 ≤59 135
1600 D Variable 2 115 1 50/60 2330 310 6.2 3.59 ≤59 145
1600 I Variable 2 115 1 50/60 2330 310 6.2 3.59 ≤59 145
2000 D Variable 2 115 1 50/60 2330 310 6.2 5 ≤59 150
Air Return Water Capacity Air Injection
Modelo DB (°F) WB (°F) Ent (°F) Sal (°F) Total (BTU/h) Sensible (Btu/h) DB (°F) WB (°F)
400 80 67 45 55 13540 9370 55.75 54.51
400 80 67 45 55 13540 9370 55.75 54.51
600 80 67 45 55 21450 15060 57.26 55.57
600 80 67 45 55 21450 15060 57.26 55.57
800 80 67 45 55 27220 18950 57.11 55.38
800 80 67 45 55 27220 18950 57.11 55.38
1000 80 67 45 55 35610 24800 57.53 55.62
1000 80 67 45 55 35610 24800 57.53 55.62
1300 80 67 45 55 45220 31550 58.02 55.92
1300 80 67 45 55 45220 31550 58.02 55.92
1200 80 67 45 55 44710 31080 56.54 55.02
1200 80 67 45 55 44710 31080 56.54 55.02
1600 80 67 45 55 54990 38930 57.96 56.06
1600 80 67 45 55 54990 38930 57.96 56.06
2000 80 67 45 55 71490 49840 57.43 55.57

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CLIFC VARIABLE - INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Dimentional data
400 CFM MODEL
Connection Ø1/2"
MODEL
400
E
(FILTER
SIZE)
C
B
(INJECTION)
D
(RETURN)
37 5/8" 26 1/8" 32 1/8" 29"
A
(DRAIN
PAN
SIZE)
F
23 1/4"
30 3/4X10"
G
38 1/2"
GENERAL DIMENSIONS
NOTES: 1. Return plenums are insulated.
2. All plenums include throw-away filter.
3. Filter has separate filter access panel for
easier service.
4. All dimensions in inches.
C
O
I
L
PLENUM
PLENUM
Drain pan
IN
OUT
FILTER
Filter Fan
COIL
Pipe fastener
Plenum section
D
12"
11 1/4"
F
8 3/8" 7 3/8"
3/8"
C
R1/8"
10 3/4"
1 1/2"
6 3/4"
1"
10 1/4"
11"
8
1/4"
11 1/4"
F
8 3/4"
E
1"
A
B
Acces valve
for purge
RETURN
SUPPLY
1"
Male drain
connection Ø1"
Electrical
connection
Filter botto
m
access
9 3/4"
G
E
TOP VIEW
LEFT VIEW
RIGHT VIEW SUPPLY VIEW
RETURN VIEW

CLIMA-FLEX 11
CLIFC VARIABLE - INSTALLATION, OPERATION AND MAINTENANCE MANUAL
600 CFM MODEL
Dimentional data (Cont’d.)
Connection Ø1/2"
MODEL
600
E
(FILTER
SIZE)
C
B
(INJECTION)
D
(RETURN)
41 5/8" 30 1/4" 36 1/8" 33"
A
(DRAIN
PAN
SIZE)
F
23 1/4"
34 3/4X10"
G
42 1/2"
GENERAL DIMENSIONS
NOTES: 1. Return plenums are insulated.
2. All plenums include throw-away filter.
3. Filter has separate filter access panel for
easier service.
4. All dimensions in inches.
C
O
I
L
PLENUM
PLENUM
Drain pan
IN
OUT
FILTER
Filter Fan
COIL
Pipe fastener
Plenum section
6 3/4"
1"
10 1/4"
Access valve
for purge
RETURN
SUPPLY
Male drain
connection Ø1"
Electrical
connection
Filter botto
m
access
11"
8"
9 3/4"
10 3/4"
C
8 3/8" 7 3/8"
3/8"
B
11 1/4"
12"
FR1/8"
A
1"
1 1/2" 11 1/4"
F
8 3/4"
E
D
E
G
TOP VIEW
RIGHT VIEW SUPPLY VIEW LEFT VIEW
RETURN VIEW

12 CLIMA-FLEX
CLIFC VARIABLE - INSTALLATION, OPERATION AND MAINTENANCE MANUAL
800 CFM MODEL
Dimentional data (Cont’d.)
Connection Ø3/4"
MODEL
800
E
(FILTER
SIZE)
C
B
(INJECTION)
D
(RETURN)
47 5/8" 36 1/4" 42 1/4" 39"
A
(DRAIN
PAN
SIZE)
F
24 1/4"
40 3/4X10"
G
48 1/2"
GENERAL DIMENSIONS
NOTES: 1. Return plenums are insulated.
2. All plenums include throw-away filter.
3. Filter has separate filter access panel for
easier service.
4. All dimensions in inches.
C
O
I
L
PLENUM
PLENUM
Drain pan
IN
OUT
FILTER
Filter Fan
COIL
Pipe fastener
Plenum section
Access valve
for deposition
RETURN
INJECTION
Male drain
connection Ø1"
Electrical
connection
Filter botto
m
access
B
F
11 1/4"
13"
10 3/4"
12" 10 1/4" 1"
1 1/2" A
1"
C
8 3/8" 7 3/8"
R1/8"
3/8"
11 1/4"
F
8 3/4"
E
9 3/4"
6 3/4"
1"
D
E
G
8
1/4"
TOP VIEW
LEFT VIEW
SUPPLY VIEW
RIGHT VIEW
RETURN VIEW

CLIMA-FLEX 13
CLIFC VARIABLE - INSTALLATION, OPERATION AND MAINTENANCE MANUAL
1,000 CFM MODEL
Dimentional data (Cont’d.)
Connection Ø34"
MODEL
1000
E
(FILTER
SIZE)
C
B
(SUPPLY)
D
(RETURN)
53 5/8" 42" 48 1/8" 44 7/8"
A
(DRAIN
PAN
SIZE)
F
28 3/4"
2218X 1378"54 5/8"
G
GENERAL DIMENSIONS
NOTES: 1. Return plenums are insulated.
2. All plenums include throw-away filter.
3. Filter has separate filter access panel for
easier service.
4. All dimensions in inches.
C
O
I
L
PLENUM
PLENUM
IN
OUT
COIL
Plenum
section
D
17 1/2"
F
11 1/4"
3/8"
B
A
10 3/4"
14 3/8"
1 1/2"
1"
G
C
12 1/4"
7 3/8"
R1/8"
F
11 1/4"
E
E
10 1/4" 1"
16 1/2"
1"
1
1 7/8"
9 5/8"
6 3/4"
Fan
Filter
Drain pan Male drain
connection Ø1"
Filter botto
m
access
Pipe fastener
Supply
Return
RIGHT VIEW SUPPLY VIEW LEFT VIEW
RETURN VIEW
TOP VIEW
Electrical
connection

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CLIFC VARIABLE - INSTALLATION, OPERATION AND MAINTENANCE MANUAL
1,200 CFM MODEL
Dimentional data (Cont’d.)
MODEL
1200
E
(FILTER
SIZE)
C
B
(INJECTION)
D
(RETURN)
53 5/8" 42" 48 3/8" 44 7/8"
A
(DRAIN
PAN
SIZE)
G
28 3/4"
22 1/8"x13 7/8"
F
54 5/8"
GENERAL DIMENSIONS
NOTES: 1. Return plenums are insulated.
2. All plenums include throw-away filter.
3. Filter has separate filter access panel for
easier service.
4. All dimensions in inches.
C
O
I
L
PLENUM
PLENUM
IN
OUT
COIL
Plenum
section
TOP VIEW
SUPPLY VIEW LEFT VIEW
RIGHT VIEW
RETURN VIEW
Connection Ø1"
D
F
17 1/2" 11 1/4"
B
3/8"
R1/8"
7 3/8"
12 1/4"
G
13 3/4"
14 3/8"
1 1/2"
A
1"
8"
1"
10 1/4"16 1/2"
1"
1
1 7/8"
9 3/4"
11 1/4"
F
Fan
Filter Drain pan
Male drain connection Ø1
Filter botto
m
access
Pipe fastener
E
E
Filter
C
RETURN
SUPPLY
Electrical connection

CLIMA-FLEX 15
CLIFC VARIABLE - INSTALLATION, OPERATION AND MAINTENANCE MANUAL
1,300 CFM MODEL
Dimentional data (Cont’d.)
MODEL
1200
E
(FILTER
SIZE)
C
B
(INJECTION)
D
(RETURN)
53 5/8" 42" 48 3/8" 40 1/4"
A
(DRAIN
PAN
SIZE)
G
34 1/4"
45 1/4"x18 1/2"
F
54 1/8"
GENERAL DIMENSIONS
NOTES: 1. Return plenums are insulated.
2. All plenums include throw-away filter.
3. Filter has separate filter access panel for
easier service.
4. All dimensions in inches.
C
O
I
L
PLENUM
PLENUM
IN
OUT
COIL
Plenum
section
TOP VIEW
SUPPLY VIEW LEFT VIEW
RIGHT VIEW
RETURN VIEW
Connection Ø1"
F
11 1/8"
B
3/8"
R1/8"
7 3/8"
17 3/4"
19"
11 1/4"
F
Fan
Filter Drain pan Male drain
connection Ø1
Filter bottom
access
Pipe fastene
r
Filter
C
RETURN
SUPPLY
Electrical
connection
Fan bottom access
1" 22" 10 1/4" 1"
8"
G
13 3/4"
23"
Electrical connection
E
A
D
15"
E

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CLIFC VARIABLE - INSTALLATION, OPERATION AND MAINTENANCE MANUAL
1,600 CFM MODEL
Dimentional data (Cont’d.)
MODEL
1600
E
(FILTER
SIZE)
C
B
(INJECTION)
D
(RETURN)
47 5/8" 37 1/8" 43 1/4" 35 1/8"
A
(DRAIN
PAN
SIZE)
F
34 1/4"
22 1/4"x13 3/4"
G
49 1/8"
GENERAL DIMENSIONS
NOTES: 1. Return plenums are insulated.
2. All plenums include throw-away filter.
3. Filter has separate filter access panel for
easier service.
4. All dimensions in inches.
C
O
I
L
PLENUM
PLENUM
IN
OUT
COIL
Plenum
section
TOP VIEW
SUPPLY VIEW LEFT VIEW
RIGHT VIEW
RETURN VIEW
Fan bottom
access
F
ilter bottom
access
Fan
Male drain
connection Ø1"
Drain pan
Filter
Connection Ø1"
Pipe fastene
r
D
23"
11 1/4"
F
C
7 3/8"
17 3/4"
B
3/8"
R1/8"
F
11 1/4"
17 3/4"
19"
11 7/8"
1"
10 1/4"
22"1"
15"
E
E
A
G
RETURN
SUPPLY
Electrical connection

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CLIFC VARIABLE - INSTALLATION, OPERATION AND MAINTENANCE MANUAL
2,000 CFM MODEL
Dimentional data (Cont’d.)
MODEL
2000
E
(FILTER
SIZE)
C
B
(INJECTION)
D
(RETURN)
47 5/8" 37 1/8" 43 1/4" 35 1/8"
A
(DRAIN
PAN
SIZE)
F
34 1/4"
22 1/4"x13 3/4"
G
49 1/8"
GENERAL DIMENSIONS
NOTES: 1. Return plenums are insulated.
2. All plenums include throw-away filter.
3. Filter has separate filter access panel for
easier service.
4. All dimensions in inches.
C
O
I
L
PLENUM
PLENUM
IN
OUT
COIL
Plenum
section
TOP VIEW
SUPPLY VIEW LEFT VIEW
RIGHT VIEW
RETURN VIEW
17 3/4"
19"
E
1"
10 1/4"
22"1"
15"
11 7/8"
F
11 1/4"
Fan bottom
access
F
ilter bottom
access
Fan
Male drain
connection Ø1"
Drain pan
E
D
17 3/4"
7 3/8" 3/8"
R1/8"
C
F
11 1/4"
23"
B
RETURN
SUPPLY
Filter
Connection Ø1"
Pipe fastene
r
A
G
Electrical connection

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CLIFC VARIABLE - INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Electrical data
ALL MODELS

CLIMA-FLEX 19
CLIFC VARIABLE - INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Before attempting to perform any maintenance work whatsoever on the equipment, it
is essential that the equipment is disconnected and completely isolated from the main
power supply.
After disconnection of the main power supply, a minimum of 1 minute should be allowed
for any rotating parts to come to rest before access panels are removed.
However, care should still be taken as it is possible for airflow generated in other parts
of the system to cause the fan impellor to rotate (windmill effect) even when power is not
present.
Access panels are not fitted with Restraints.
Appropriate PPE should be worn and correct
tools should be used when undertaking these various maintenance tasks.
Access panels that are removed for maintenance operations should be placed at floor
level in a safe location until they are ready to be re-fitted. Replace access panels at the
same locations and in the same orientation as found, and ensure that the screw fixings
are fastened securely, but not over-tightened.
If failure of the equipment occurs or is suspected, then it should be taken out of service
until the appropriate maintenance or repair can be undertaken.
FILTERS
Filters must be properly maintained in order to ensure proper air cleaning efficiency and to maintain design
airflow. Acoustic output may also be adversely affected by dirty filters.
The length of time between cleaning of filters is dependent upon the air condition. A three month cycle is normal,
however more frequent maintenance may be required in some cases. There is one air filter fitted to the equipment in
the inlet air path, upstream of the heat exchange coil. The filter may be slid out to either side of the unit. Alternatively,
the crosshead screws which fix the filter retaining angle to the equipment body may be loosened to provide sufficient
clearance for the filters to be maneuvered out of their retaining channels.
Where the equipment includes for the filter to be fitted within a separate in-board filter section, remove the screws
securing the access panel and remove the filter. Initially, cleaning can be performed by gently tapping and removing
loose dust with an air line or vacuum cleaner.
Once removed, washable filters may be fully immersed in warm water with a mild detergent solution. Agitate the
water until all contaminants have been removed. The filter should then be rinsed in clear water, allowed to drain
and air dried before replacement. In the event of heavy soiling or damage to the filter media or wire support frame,
the entire filter should be changed. When refitting new filters into the equipment, it is important to ensure these are
fitted correctly in respect of airflow. The correct orientation is obtained when the wire frame is positioned towards
the heat exchanger, and the filter media completely covers the wire frame.
Maintenance
WARNING

20 CLIMA-FLEX
CLIFC VARIABLE - INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Maintenance (Cont’d.)
CONDENSATE DRIP TRAYS AND DRAINS
Drain lines should be checked to ensure that they are unobstructed and free draining.
Drain traps should be checked that they are fully primed and functioning correctly.
Drain trays should be checked to ensure they are free from debris. They should be periodically flushed out and
chemically treated as necessary to remove any contamination or debris.
To clean the drain tray, proceed as follows:
1.Disconnect the condensate drain pipework from the drain tray connection.
2.Use a moist cloth impregnated with mild soap or antibacterial solution to remove any debris or residue accumulation.
3.Make sure that there are no obstructions or debris in the pipework.
4.Reconnect the pipework to the drain tray connection.
WATER TO AIR HEAT EXCHANGE COIL
The finned surfaces of the heat exchange coil should be inspected for accumulation of dirt, dust, biological
contaminants.
The coil should also be inspected for evidence of leaks on the surfaces, connections to the coil tails, and all
externally visible copper tubes, headers and return bends. To inspect both faces of the coil, the fan access panels
and air filter should be removed.
Maintenance is performed as follows:
• Superficial dust or debris can be removed from the surface by gently brushing with a soft long haired brush.
Debris can then be vacuumed from the surfaces and other Areas
• Remove stubborn deposits or biological contaminants by careful application of a damp cloth. The cloth should
be dampened using warm water mixed with a mild detergent solution compatible with the materials used in the
construction of the coils (copper tubes, aluminum fins).
• Compressed air may be used to blow through the coil fins, however care should be taken to ensure that any
residue, debris or water from washing does not contaminate the fan assemblies or electrical connections within
the fan chamber.
Residual water should be dried immediately with a cloth, and must not be allowed to Saturate
• If there is any evidence of leaks, the coil block should be removed, and either repaired or replaced.
Any treated water within the coil fluid circulation system should not be drained into any waste water
disposal system without Local Authority approval.
It is the responsibility of the user and the maintenance personnel to ensure that all Local Authority and
prevailing environmental legislation / guidelines are adhered to.