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5 - CODIFICATION

Product type*

Size

Modi

fication

 

code 

(1)

Coils

Supply and return

 

air plenum*

valves

Valve motors

Control

Sensors

Filter and access

Fresh air

Motor wiring 

(1)

Product reference

4

2

B

J

1

9

E

A

T

A

A

A

A

A

A

W

Digit

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

(1)  Fixed values

Digits 5/6

1

9

2

9

3

9

Digit 8

A

2 pipes right

B

2 pipes left

C

4 pipes right

D

4 pipes left

E

2 pipes/2 wires right, low 

pressure (PTC 2 wired stages)

F

2 pipes/2 wires left, low 

pressure (PTC 2 wired stages)

G

2 pipes/2 wires right, high 

pressure (PTC 5 wired stages)

H

2 pipes/2 wires left, high 

pressure (PTC 5 wired stages)

J

2 pipes/2 wires right, high 

pressure (PTC 4 wired stages)

K

2 pipes/2 wires left, high 

pressure (PTC 4 wired stages)

Digit 14

F

F5 access from below

G

F5 side access

H

F5 access from above

K

F6 access from below

L

F6 side access

M

F6 access from above

S

Activated carbon f 

UVPCO (access from below)

T

Activated carbon f 

UVPCO (side access)

U

Activated carbon f 

UVPCO (access from above)

Digit 15

-

None

A

125 mm Ø 

fresh air spigot 

only

B

8,3 l/s (30 m

3

/h)

C

16,6-44,4 l/s 

(21/28/36)

E

Motorised fresh 

air valve 

adapter Ø 125 

mm

X

SPECIAL

Digit 10

-

None

C

2-way valve

D

3-way valve

J

2-way valve + 

flexible piping

K

3-way valve + 

flexible piping

Digit 12

-

None

A

NTC

D

NTC + IAQ board

K

NTC + fuse holder

L

NTC + IAQ board + fuse holder

Digit 13

-

None

A

Return air sensor

B

Supply air sensor

C

Change-over sensor

D

A + B

E

A + B + C

F

A + C

G

B + C

H

CO

2

 sensor

J

A + CO

2

K

B + CO

2

L

C + CO

2

M

A + B + CO

2

N

A + C + CO

2

P

B + C + CO

2

Q

A + B + C + CO

2

Digit 11

0

None

A

230 V on/off

C

3 points 230 V

14

Summary of Contents for 42BJ ULTRA

Page 1: ...I N S TA L L AT I O N I N S T R U C T I O N S Original document INDIVIDUAL COMFORT MODULE FOR VARIABLE AIR VOLUME SYSTEMS 42BJ MCI LEC Sizes 1 9 2 9 4 9 ...

Page 2: ...2 ...

Page 3: ...n conditions 9 2 4 Caution for the control of the 42BJ ICM LEC 9 2 5 Regulations 9 3 INSTALLATION OF THE UNIT 10 3 1 Installing the unit in the false ceiling 10 3 2 Installation procedure 10 3 3 Remocal procedure 10 4 COMPONENTS 11 4 1 Fan motor assembly 11 4 2 Water coil 11 4 3 Duct connection spigots 11 4 4 Optional air filter and filter access air filter replacement 11 4 5 Constant volume fresh...

Page 4: ...B C D E F G H I 4 ...

Page 5: ...m m 50 mm l s m3 h A B MR60 17 60 4 4 4 4 MR75 21 75 4 3 4 3 MR85 24 85 3 3 3 2 MR90 25 90 3 2 2 2 MR100 28 100 2 1 2 1 MR105 29 105 2 1 1 1 MR110 31 110 1 1 1 1 MR120 33 120 3 3 MR130 36 130 2 1 MR140 39 140 1 1 MR160 44 160 L M N O 5 ...

Page 6: ... A 2 wV In Out In Out Cold Hot Ø 16 61 75 75 10 5 4 Ø 1 2 gas 25 82 5 69 188 A 3 wV In 42BJ A 1 9 151 mm 2 9 190 mm 42BJ MCI LEC 4 9 Out Ø 16 75 61 4 Ø 1 2 gas 163 5 192 225 69 2 wV In In Out Cold Hot Out Ø 16 75 61 4 Ø 1 2 gas 163 5 192 62 5 69 3 wV In In Out Cold Hot 6 ...

Page 7: ...g device for installation in a false ceiling H I Levelling the unit J Condensate drain pipe K Several units connected to one condensate collector L Fresh air controller modification M Fan motor assembly removal 12a Door 12b Locking screw 12C Fan fixing screw N Electric heater removal O Underfloor installation P Coil water inlet outlet positions sizes 1 9 and 4 9 In Water in Out Water out Hot Hot w...

Page 8: ...acteria and chemicals in order to avoid problems due to corrosion and scaling The water circuit must include all the necessary elements for the treatment of the water filters additives intermediate exchangers purges drains isolating valves etc according to the analysis results The results must be in accordance with the values shown below Total hardness in mmol l 1 mmol l 1 5 Chloride CL 10 mg litre...

Page 9: ...rown green yellow and its cross section and type must comply with the specifications set out by the applicable EN or IEC standard Refer to the selection sheet or the name plate to determine the maximum input current These devices are not supplied by Carrier In general terms the following rules must be applied Upstream over voltage protection Unit without electric heater T2A Unit with electric heat...

Page 10: ... over the whole horizontal pipe run Install a 50 mm minimum siphon to prevent gases and odours from flowing back into the ceiling void If several units are connected to a common collector a device must be installed Fig 10 Before operating the unit ensure that the water flows into the internal condensate drain pan by pouring some water into it If problems are detected check the drain pipe slope and l...

Page 11: ...d all air from the coil during refilling ATTENTION It is advisable to tighten the valve body to the coils with caution 15 N m is sufficient to ensure they are not damaged 4 2 2 Coil inlet outlet positions Fig 15 Water inlets outlets sizes 1 9 2 9 Water inlets outlets size 4 9 ATTENTION Carefully observe the direction indicated by the arrow on the valves based on the connection side and the valve typ...

Page 12: ...e actuators must be connected to the power supply to open the valves via a command from the wall thermostats or from the BMS 4 6 2 Actuator replacement procedure The actuators on both the chilled water and the hot water valves may be replaced if either develops a fault Disconnect the power supply to the unit before carrying out any work on a unit Disconnect the actuator power supply cable equipped...

Page 13: ...umeric controller 4 10 Adjustable feet accessories for installation in a false floor void 4 10 1 Introduction An ICM may be installed in a floor void Adjustable feet with built in vibration absorbers are available as accessories for installation on site For further information please contact your local Carrier representative 4 10 2 Procedure for fitting see Figs 14 and 15 a Install angle bracket 1 u...

Page 14: ... high pressure PTC 4 wired stages Digit 14 F F5 access from below G F5 side access H F5 access from above K F6 access from below L F6 side access M F6 access from above S Activated carbon filters UVPCO access from below T Activated carbon filters UVPCO side access U Activated carbon filters UVPCO access from above Digit 15 None A 125 mm Ø fresh air spigot only B 8 3 l s 30 m3 h C 16 6 44 4 l s 21 ...

Page 15: ...15 ...

Page 16: ...7 2021 replaces No 14281 11 2011 The manufacturer reserves the right to modify the product specifications without prior notice Manufacturer Carrier S C S Rte de Thil 01120 Montluel France Printed in the European Union ...

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