Carrier 42AM Series Manual

INSTALLATION, OPERATION AND
MAINTENANCE INSTRUCTIONS
Translation of the original document
Heating unit
42AM - 42AMA
Rated cooling capacity 2 - 24 kW
Rated heating capacity 12 - 140 kW
50Hz

2

1 - RECEIPT OF THE UNIT ................................................................................................................................................................4
2 - HANDLING ....................................................................................................................................................................................4
3 - TECHNICAL CHARACTERISTICS ...............................................................................................................................................5
3.1 - ROTOREX fan motor assembly ................................................................................................................................................5
3.2 - CORROBLOC fan motor assembly with AC motor ...................................................................................................................5
3.3 - EC fan motor assembly.............................................................................................................................................................6
4 - HEAT EXCHANGER......................................................................................................................................................................7
4.1 - Water/superheated water/steam coils .......................................................................................................................................7
5 - DIMENSIONS.................................................................................................................................................................................8
5.1 - 42AM air heater.........................................................................................................................................................................8
5.2 - 42AMA Destratier ....................................................................................................................................................................8
6 - SETUP ...........................................................................................................................................................................................9
6.1 - 42AM air heater ........................................................................................................................................................................9
6.2 - 42AMA Destratier ....................................................................................................................................................................9
6.3 - Wall-mounting the 42AM air heater...........................................................................................................................................9
6.4 - Ceiling-mounting the 42AM air heater.....................................................................................................................................10
7 - WATER CONNECTIONS ............................................................................................................................................................. 11
7.1 - Screw connections (AIR HEATER used for heating)............................................................................................................... 11
7.2 - Condensate drain connection (AIR HEATER used for cooling or in reversible mode)............................................................ 11
8 - ELECTRICAL CONNECTIONS...................................................................................................................................................12
9 - POWERING UP ...........................................................................................................................................................................12
10 - MAINTENANCE.........................................................................................................................................................................12
11 - FREQUENTLY ASKED QUESTIONS........................................................................................................................................ 13
12 - TESTS AND WARRANTY .........................................................................................................................................................13
13 - ASSEMBLY OPTIONS...............................................................................................................................................................14
14 - CONTROL..................................................................................................................................................................................15
15 - WALL BRACKET.......................................................................................................................................................................16
16 - FILTER BOX ..............................................................................................................................................................................17
17 - DIFFUSER ON DOOR ...............................................................................................................................................................17
18 - DIFFUSER FOR LARGE SPACES............................................................................................................................................18
19 - FINAL SHUTDOWN...................................................................................................................................................................18
The images in these documents are solely for illustration and are not contractual. The manufacturer reserves the right to change the design at any time without notice.
CONTENTS
3

Thank you for purchasing an AIR HEATER or a DESTRATIFIER from the CARRIER 42AM range. We trust that this unit will give you
complete satisfaction.
To ensure correct operation, all connections (electrical, hydraulic, etc.) must be made in accordance with industry practice and the
regulations in force in the country of use.
Your unit must be maintained as recommended in this manual
1 - RECEIPT OF THE UNIT
The unit is supplied with a label on the packaging detailing all the specications of the unit used to identify it (type, model etc.).
Each device bears a name plate. The reference number shown on the name plate must be quoted in all correspondence.
It is the recipient's duty to inspect the contents of the packages upon receipt:
■In the event of missing items, the customer must provide the exact number of parcels delivered.
■All damaged or missing items must be reported on the delivery note in the presence of the driver before the delivery note is signed.
IMPORTANT: In accordance with Article 133 of the French Code of Commerce, these claims must be reported to the carrier by
registered letter within three business days of receipt. The terms "conditional" and "pending unwrapping" shall have no value. The
customer must unwrap the goods in the presence of the driver. Damage/shortages must be noted at time of delivery and described in
detail. An air heater operating with more than 10% fresh air is not compliant with the Regulation (EU) No. 1253/2014.
2 - HANDLING
Handle the unit with care.
The unit can be installed with a forklift truck using the slings. These should be positioned on the 2 lifting rings as shown in the diagram
below.
50°
max
4

3 - TECHNICAL CHARACTERISTICS
3.1 - ROTOREX fan motor assembly
1 Ph/230 V AC motor
Use Model Motor Rotation
speed
Nom.
current
Abs.
pressure IP Thermal cut-
out Class Operating
temp
HEATING
42AM-AC35
1 Ph/230 V
50Hz
1330 rpm 0.70 A 150W 44 NO
F
-40°C / +60°C
42AM-AC40/
42AMAAC40 1400 rpm 1.30 A 300W
54 YES
6.3 A - 165 °C -40°C/+70°C
42AM-AC45/
42AMAAC45 1380 rpm 2.01 A 480W
42AM-AC50/
42AMAAC50 1403 rpm 2.78 A 630 W
42AM-AC63/
42AMAAC63 913 rpm 2.60 A 580 W
3 Ph/400 V AC motor
Use Model Motor Rotation
speed
Nom.
current
Abs.
pressure IP Thermal cut-
out Class Operating
temp
HEATING
42AM-AC35
3 Ph/400 V
50Hz
HS - ∆ 1385 rpm 0.35 A 110W 44 NO
F
-40°C / +60°C
LS - 1175 rpm 0.15 A 70W
42AM-AC40/
42AMAAC40
HS - ∆ 1404 rpm 0.50 A 260 W
54 YES
6.3 A - 165 °C -40°C/+70°C
LS - 1176 rpm 0.30 A 170 W
42AM-AC45/
42AMAAC45
HS - ∆ 1385 rpm 1.13 A 550 W
LS - 1040 rpm 0.64 A 380 W
42AM-AC50/
42AMAAC50
HS - ∆ 1391 rpm 1.51 A 770 W
LS - 1176 rpm 0.90 A 520 W
42AM-AC63/
42AMAAC63
HS - ∆ 1000 rpm 1.30 A 590W
LS - 750 rpm 0.63 A 250 W
42AM-AC64 HS - ∆ 870 rpm 1.30 A 590W
LS - 750 rpm 0.63 A 250 W
3.2 - CORROBLOC fan motor assembly with AC motor
3 Ph/400 V CORROBLOC AC motor
Use Model Motor Rotation
speed
Nom.
current
Abs.
pressure IP Thermal cut-
out Class Operating
temp
HEATING
42AM-AC35
3 Ph/400 V
50 Hz
HS - ∆ 1260 rpm 0.5 A 200W
65
"YES
6.3 A - 165
°C"
F -40°C/+70°C
LS - 950 rpm 0.2 A 120 W
42AM-AC40 HS - ∆ 1350 rpm 0.8 A 300W
LS - 1000 rpm 0.4 A 200W
42AM-AC45 HS - ∆ 1230 rpm 1.0 A 500 W
LS - 810 rpm 0.5 A 310 W
42AM-AC50 HS - ∆ 1350 rpm 1.6 A 660 W
LS - 1060 rpm 0.9 A 450W
42AM-AC63 HS - ∆ 905 rpm 1.26 A 530 W
LS - 650 rpm 0.6 A 300W
5

3.3 - EC fan motor assembly
1 Ph/230 V EC motor
Use Model Motor ROTATION
SPEED
I NOM
(A)
P. (W)
ABS IP Protection Class Operating
temp.
HEATING
42AM-EC30
1 Ph/230 V
50/60 Hz
1500 rpm 0,80 85 54 TACH B -25 °C/+55 °C
42AM-EC35 1480 rpm 1,35 165 54 TACH B -25 °C/+50 °C
42AM-EC40/
42AMAEC40 1760 rpm 2,2 500 55 NF 250 VAC/2 A F -25 °C/+60 °C
42AM-EC45/
42AMAEC45 1500 rpm 2,2 500 55 NF 250 VAC/2 A F -25 °C/+60 °C
42AM-EC50/
42AMAEC50 1440 rpm 3,25 740 55 NF 250 VAC/2 A F -40 °C/+60 °C
42AM-EC63/
42AMAEC63 1020 rpm 3,2 730 55 NF 250 VAC/2 A F -40 °C/+60 °C
COOLING
42AM-EC30
1 Ph/230 V
50/60 Hz
1500 rpm 0,80 85 54 TACH B -25 °C/+55 °C
42AM-EC35 1040 rpm 0,65 73 54 TACH B -25 °C/+55 °C
42AM-EC40/
42AMAEC40 1760 rpm 2,2 500 55 NF 250 VAC/2 A F -25 °C/+60 °C
42AM-EC45/
42AMAEC45 1500 rpm 2,2 500 55 NF 250 VAC/2 A F -25 °C/+60 °C
42AM-EC50/
42AMAEC50 970 rpm 1,1 250 55 NF 250 VAC/2 A F -25 °C/+60 °C
42AM-EC63/
42AMAEC63 770 rpm 1,0 240 55 NF 250 VAC/2 A F -25 °C/+60 °C
Note: Warning: if the EC motor is being used without a control, please respect the rotation speeds (with control voltage) listed below
Use Model Rotation speed Maximum control voltage (V)
HEATING
42AM-EC30 1500 rpm 10
42AM-EC35 1359 rpm 9
42AM-EC40/
42AMAEC40 1605 rpm 7,7
42AM-EC45/
42AMAEC45 1507 rpm 9,9
42AM-EC50/
42AMAEC50 1325 rpm 8,1
42AM-EC63/
42AMAEC63 1000 rpm 7,7
COOLING
42AM-EC30 1280 rpm 8,5
42AM-EC35 1095 rpm 9,5
42AM-EC40/
42AMAEC40 1111 rpm 5
42AM-EC45/
42AMAEC45 1018 rpm 5
42AM-EC50/
42AMAEC50 974 rpm 10
42AM-EC63/
42AMAEC63 772 rpm 10
3 - TECHNICAL CHARACTERISTICS
6

4 - HEAT EXCHANGER
4.1 - Water/superheated water/steam coils
Copper tube
Aluminium honeycomb ns
Hot water/cold water coil 30 35 40 45 50 63
Number of heating rows 2 1 3 1 3 1 3 1 3 1 3
Number of cooling rows 2 3
Coil capacity (L) 0,8 0,68 1,66 0,96 2,28 1,38 3,22 2,18 4,55 2,97 6,4
Connection diameter 1/2” ¾" 1" 1’’ ¼
Fin Aluminium honeycomb
Connection type Threaded unions 243 GCU F/M
Maximum operating pressure 13 bar
Test pressure 24 bar
Max T° 110°C
Superheated water coil 30 35 40 45 50 63
Number of heating rows 1
Coil capacity (L) 1,19 1,69 - 2,66 3,69
Connection diameter 33.7 mm 42.4 mm - 42.4 mm
Fin Aluminium honeycomb
Connection type Smooth 316L stainless steel tube (to be welded)
Maximum operating pressure 16 bar
Test pressure 24 bar
Max T° 200°C
Steam coil 30 35 40 45 50 63
Number of heating rows 1
Coil capacity (L) 0,97 1,22 - 1,95 2,86
Connection diameter 26,9 33,7 - 48,3
Fin Aluminium honeycomb
Connection type Smooth 316L stainless steel tube (to be welded)
Maximum operating pressure 16 bar
Test pressure 24 bar
Max T° 200°C
7

5 - DIMENSIONS
5.1 - 42AM air heater
Size 42AM-
AC30
42AM-
AC35
42AM-
AC40
42AM-
AC45
42AM-
AC50
42AM-
AC63
42AM-
AC64
A
mm
395 460 555 618 714 874 872
B600 646 700 813 918 1050 1050
C286 286 286 286 336 336 295
D- 101 142 142 142 142 126
E* 126 126 143 143 188 200 -
Weight
(kg)
1 row - 21 30 40 50 62 60
2 rows 18 - - - - - -
3 rows - 26 34 44 56 72 -
E* = EC FMA (42AM-EC)
5.2 - 42AMA Destratier
Size 42AMAAC40 42AMAAC45 42AMAAC50 42AMAAC63
A
mm
586 666 747 907
B183 212 225 273
C143 143 143 143
D370 470 570 705
E* 143 143 188 200
F552 632 712 872
Weight kg 17 22 25 33
E* = EC FMA (42AMEC)
8

6 - SETUP
6.1 - 42AM air heater
To ensure correct air diffusion and to comply with the EN 294 standard relating to safety
zones, you are recommended to position AIR HEATER units at a height of:
■Between 2.5 and 4.5 metres when wall-mounted
■Between 4.5 and 10 metres when ceiling-mounted.
The rear of the unit must be at a sufcient distance from the wall to facilitate removal of
the fan motor assembly when necessary.
6.2 - 42AMA Destratier
It is recommended that destratiers are positioned at a height of 5 to 15 metres.
The rear of the unit must be at least 145 mm away from any walls to facilitate removal of the fan
motor assembly when necessary.
6.3 - Wall-mounting the 42AM air heater
Installation using wall-mounting support kit
Installation mainly for HEATING purposes
Installation using low wall-mounting support kit
Installation mainly for COOLING or REVERSIBLE purposes
Size 42AM-EC30 42AM-AC35
42AM-EC35
42AM-AC40
42AM-EC40
42AM-AC45
42AM-EC45
42AM-AC50
42AM-EC50
42AM-AC63
42AM-EC63 42AM-AC64
BFilter box wall bracket
CWall bracket (Code 7181226)
DDrain sleeve in cooling mode, outer diameter 32
Xmm 310 260
Ymm 390 340
Distance to allow between the wall bracket legs for mounting the AIR HEATER
Dimensions mm 512 558 610 710 808 943 943
Min: 0.15 m
Min: 0.15 m
Min: 2.5 m
Max: 4.5 m
Min: 4.5 m Max: 10 m
Min: 0.145 m
Min: 5 m
Max: 15 m
9

6 - SETUP
Installation with wall-mounting kit + additional kit on IPN
IPN Serrated washer L8 + H M8 nuts
H M8 x 70 screw + L8 plain washer
Plastic end piece
Support tube H M8 x 50 screw
+ serrated washer
Mounting bracket
kit
Wall-mounting kit
Additional kit for IPN
Assembly procedure:
1. Pre-assemble the clamping plates on the brackets using the
Ø 8 mm serrated washers and the H M8 nuts (not tightened).
2. Fit the bracket assemblies onto the support tubes by sliding
them over the end.
3. Fix the legs of the wall bracket (7181226) using the 4 H M8x70
screws, the 4 x Ø 8 mm plain washers, the 4 x Ø 8 mm serrated
washers and the 4 x H M8 nuts, allowing the distances detailed
above.
4. Move the support assembly onto the IPN and slide the bracket
assemblies so that the lips are clamped onto the IPN. Tighten
the bracket nuts to lock the assembly in place.
5. Fix the AIR HEATER unit using the 4 x H M8 x 50 screws
supplied with the wall bracket.
Size 42AM-EC30 42AM-AC35
42AM-EC35
42AM-AC40
42AM-EC40
42AM-AC45
42AM-EC45
42AM-AC50
42AM-EC50
42AM-AC63
42AM-EC63 42AM-AC64
Distance mm 512 558 610 710 808 943 943
Code for additional kit for fastening on an IPN
Reference 7181228 7181230
6.4 - Ceiling-mounting the 42AM air heater
Installation with ceiling-mounting kit
Installation only possible for HEATING applications.
Ceiling mounting using uids at temperatures above 90°C is prohibited if the heat exchanger is still supplied with uid when
the ventilation is switched off. (Motor warranty invalidated if the motor is damaged due to the thermal inertia of the coil)
Bracket identical on all 4 sides
M8 metric screws
M8 insert
To be provided by the client:
-M8 threaded rods
-Lock nuts underneath the inserts
Assembly procedure:
1. Remove the 8 x M8 screws. (Upper and lower section of the AIR HEATER)
2. Fit the ceiling brackets and ret the M8 screws in their original locations.
10

7 - WATER CONNECTIONS
7.1 - Screw connections (AIR HEATER used for heating)
The side of the AIR HEATER hydraulic connection may also be positioned to the left or right of the air ow direction simply by turning
it (for HEATING applications). Ensure that the cable glands on the motor terminal box are facing downwards to ensure the assembly
is correctly sealed.
The hydraulic connection on the AIR HEATER LP water version is screwed in using threaded unions. The coil supply pipes and the
general supply pipes must be connected and tightened according to good working practice, namely, using two adjustable wrenches
to avoid any torsion of the coil collector.
CARRIER shall in no way be held liable for damage to the coil if these installation instructions are not followed and the warranty shall
be invalidated.
Two keys are used to ensure the counter torque; the unit's
connection tube will not be pierced.
If only one key is used, the connection tube may twist and be
pierced.
This is not covered by the CARRIER warranty
7.2 - Condensate drain connection (AIR HEATER used for cooling or in reversible mode)
For COOLING applications, the condensate drain pan is integrated into the AIR HEATER. This is of antibacterial design thanks to its
diamond pointed based.
M5 CBLX screw
Lower groove
2nd gasket
1st gasket
Upper groove
Condensate drain
pipe
Procedure for tting the union on the pan:
1. Position the 1st gasket into the lower groove on the union
2. Position the 2nd gasket into the upper groove on the union
3. Fix the assembly onto the condensate drain pan using the M5 CBLX screw supplied in the threaded insert xed onto the pan.
Condensate drain pan connection
Once the union is tted with these gaskets, t the pipe onto the union (outer diameter 32 mm). The gaskets provide an adequate seal
for the union.
Nevertheless, it is important to ensure that this connection between the union and the pipe does not bear all the weight of the drain
column tted with a siphon which must be installed according to good working practice (risk of detachment).
11

8 - ELECTRICAL CONNECTIONS
Before connecting the unit to the mains, ensure that the voltage matches that given on the unit's data plate (230V - 50 Hz for
single-phase and 400V - 50 Hz for three-phase).
The unit must be connected to earth.
CIAT shall not be liable for incidents resulting from faulty or non-existent earthing.
■42AM air heater and 42AMA destratier:
-Direct connection to AC Single-Phase and AC Three-Phase fan motor assembly
-Diagram 7433969
-AC single-phase fan motor assembly
-42AM-AC + 1-speed proximity switch + RTR + Autotransformer connection → Diagram 7528225
-42AM-AC + 1-speed proximity switch + AC thermostat (type A 33TA-AC01 thermostat) + Autotransformer connection
→ Diagram 7528226
-EC single-phase fan motor assembly
-Direct connection → Diagram 7489644
-42AM-EC +1-speed proximity switch + 3V-EC thermostat (type C 33TC-EC01) connection → Diagram 7528227
-42AM-EC+SINGLE-PHASE EC BOX wiring diagram → Diagram 7512267
-42AM-EC+SINGLE-PHASE EC BOX eld connection → Diagram 7568152
■42AM air heater:
-3-phase fan motor assembly
-2-speed in MANUAL mode schematic diagram (42AM-AC + 2-speed proximity switch + LS/HS switch + Industrial 1-stage
thermostat) → Diagram 7433975
-2-speed in AUTO mode schematic diagram (42AM-AC + 2-speed proximity switch + Industrial 2-stage thermostat)
→ Diagram 7433972
9 - POWERING UP
When switching on for the rst time:
-Remove the bridge on the terminal strip (see "Motor connection" diagram [7433969]).
-Ensure that the motor rotates in the right direction (see marking indicating the fan's normal direction of rotation).
-Measure the current consumed by the motor:
• If this is equal to or less than the current indicated on the unit's data plate, the installation is in good working order.
• If the operating current consumed is greater than that indicated on the data plate, stop the motor immediately and check the
installation and the connections. If the motor appears to be the source of the fault, contact the supplier.
10 - MAINTENANCE
Although no specic servicing is required for CARRIER DESTRATIFIERS and AIR HEATERS, the following operations should be
carried out once a year:
-Retighten all the electrical connections
-Retighten all the screws on the unit
-Clean the propeller with a slightly damp cloth
Clean the coil by blowing it with air
Clean the casing and the diffuser using a slightly damp cloth
-These actions must be carried out by qualied personnel, with the power switched off
12

11 - FREQUENTLY ASKED QUESTIONS
Questions/Problems Possible causes Remedies
The heating capacity is insufcient
The propeller is not turning in the right direction.
The ow rate (or the water temperature)
supplied by the AIR HEATER is not sufcient.
See the information on the "Switching on" page
Refer to the pages on "Heat, air and sound
performance" relating to your AIR HEATER unit
and compare your data to the information in the
table.
The ow rate is not as it should be
The propeller is not turning in the right direction.
The coil is fouled
The lter is clogged
See the information on "Switching on"
See the information on "Maintenance"
Wash the lter using an environmentally-friendly
detergent or replace the lter.
The unit is making an unusual noise
The propeller is dirty which unbalances it,
creating an awkward noise.
The fan motor assembly is not sufciently
secured to the casing and the assembly
vibrates.
See the information on the "Maintenance" page
See the information on the "Maintenance" page
The fan motor assembly is consuming more
current than the value indicated on the data
plate
The propeller is not turning in the right direction. See the information on the "Switching on" page
The fan motor assembly is not turning
The coil is fouled (or the lter is clogged), the
motor therefore overheats and the thermal
cut-out cuts the electrical supply to the motor.
Clean the coil (or the lter) according to the
information on "Maintenance" and wait for the
thermal cut-out to cool down.
I ordered an AIR HEATER for HEATING
purposes. I want to change my installation to
also provide COOLING for my premises.
Is this possible?
-
Yes. It is essential that the supply air speeds on
the coil be controlled however to avoid the
creation of droplets (this can be done easily
using the 5-speed autotransformer with a fan
motor assembly with 1-PHASE).
It is also important to allow condensate to drain.
12 - TESTS AND WARRANTY
All our units are tested and proven before leaving the factory.
They are guaranteed against all manufacturing defects. CIAT shall not be held liable for any type of corrosion.
The motors are not covered by the warranty in cases of incorrect electrical connection or inadequate protection.
Under no circumstances must the tter carry out work on the motor. This will invalidate any future claims on the warranty.
CARRIER's products carry the CE mark, demonstrating that they may be sold throughout the European Union. This mark is
your assurance that the products are safe to use.
13

13 - ASSEMBLY OPTIONS
Assembly option (assembly accessories, modules for return, for diffusion, distribution)
Wall bracket and Additional IPN kit Ceiling bracket
Model Wall bracket
product code
Additional IPN
kit product code
Assembly
diagram Model Code Assembly diagram
42AM-EC30
7181226
7181228
7194594
42AM-EC30
7282116 7193136
42AM-AC35
42AM-EC35
42AM-AC35
42AM-EC35
42AM-AC40
42AM-EC40
42AM-AC40
42AM-EC40
42AM-AC45
42AM-EC45
42AM-AC45
42AM-EC45
42AM-AC50
42AM-EC50
7181230
42AM-AC50
42AM-EC50
42AM-AC63
42AM-EC63
42AM-AC63
42AM-EC63
42AM-AC64 42AM-AC64
Filter box Diffuser on door
Model Code Assembly diagram Model Code Assembly diagram
42AM-EC30 7417083
7193132
Appendix F
42AM-EC30 7417084
7204354
Appendix H
42AM-AC35
42AM-EC35 7185105 42AM-AC35 42AM-EC35 7185133
42AM-AC40
42AM-EC40 7185106 42AM-AC40 42AM-EC40 7185134
42AM-AC45
42AM-EC45 7185107 42AM-AC45 42AM-EC45 7185135
42AM-AC50
42AM-EC50 7185108 42AM-AC50 42AM-EC50 7185136
42AM-AC63
42AM-EC63 7185110 42AM-AC63 42AM-EC63 7185137
42AM-AC64 7185110 42AM-AC64 7185137
Diffuser for large spaces
Model Code Assembly diagram
42AM-EC30 - -
42AM-AC35
42AM-EC35 - -
42AM-AC40
42AM-EC40 7185138
7204355
Appendix I
42AM-AC45
42AM-EC45 7185139
42AM-AC50
42AM-EC50 7185140
42AM-AC63
42AM-EC63 7185141
42AM-AC64 7185141
14

14 - CONTROL
SINGLE-PHASE EC BOX (for air heaters or destratier units tted with SINGLE-PHASE EC motors)
Thank you for purchasing the "SINGLE-PHASE EC BOX" electronic control solution for AIR HEATER or DESTRATIFIER units tted
with SINGLE-PHASE EC motors. Up to 6 AIR HEATER or 6 DESTRATIFIER units or even 3 AIR HEATER + 3 DESTRATIFIER units
can be controlled using a single box.
This box allows the following:
■Proportional variation of the supply air speed for the EC single-phase fan motor assembly (0-10 V FMA) according to the heating
requirements of your building.
Heat or cool as precisely as possible in accordance with your needs.
■Supply water to one or more heat exchangers according to your building's heat requirements (available with the optional valve kit).
Control your supply air temperature to improve comfort levels and maintain the range of the air streams.
■Choose between fresh air only or mix with frost protection via the servomotor to be installed on the 2-channel mixing box with built-
in lter (available with the fresh air kit damper servomotor + frost protection thermostat kit) or 100% recirculated air.
Adjust the fresh air rates in your building to meet current requirements or based on room occupancy levels (built-in
timer).
■ The internal timer can be congured on a weekly basis using 3 operating modes (Comfort, Eco, Frost protection), allowing you to
make environmentally-sound use of your air heaters.
The heating requirements of your building will depend on its occupancy level.
■Centralised management of the AIR HEATER units via the master controller allowing up to 10 SINGLE-PHASE EC BOX slave units
to be controlled (one EC BOX master or slave unit controls 6 AIR HEATER units or 3 AIR HEATER units + 3 DESTRATIFIERS).
 The display shows the operating status of each individual AIR HEATER unit (fresh air or return air, motor fault, risk
of frost, etc.)
■ All of the protective devices necessary to connect 6 units (air heaters or destratiers) as well as 6 valve kits.
Plug & Play solution
■A remote on/off control is available as well as a two separate fault summaries. Possibility to communicate via ModBus, JBUS or
Bacnet IP.
Networked solution
Refer to the instruction manual supplied in the packaging of your SINGLE-PHASE EC BOX for further information or contact your
CARRIER agent.
3 speed EC thermostat
■Functions
The EC control includes a temperature selector (range from 10°C to 30°C) that maintains the room temperature at the selected value.
■FAN operation
The user can use the fan speed selector button to set the fan's operating mode to manual or automatic.
In manual mode, three types of speed can be selected (low, mid, high) depending on the requirements or energy saving
mode. This energy saving mode is particularly useful for air conditioning in rooms at night or rooms left unoccupied for long
periods.
In automatic mode, the fan speeds are controlled by a microprocessor housed in the control unit, according to the temperature
selected. (see table below. 3 speeds possible depending on the heliotherme model)
Shunt 6 Shunt 7 Shunt 8 LOW MID HIGH
Heliotherme model
Heating Cooling
Closed Closed Closed →2 V 6 V 10 V 42AM-EC30/
42AM-EC45
42AM-EC50/
42AM-EC63
Closed Closed Open →2 V 4 V 6 V - -
Closed Open Closed →6 V 8 V 10 V - -
Closed Open Open →2 V 3 V 4 V - 42AM-EC40/
42AM-EC45
Open Closed Closed →8 V 9 V 10 V - -
Open Closed Open →5 V 6 V 7 V 42AM-EC40/
42AM-EC63 -
Open Open Closed →4 V 6 V 8 V 42AM-EC50 42AM-EC30
Open Open Open →3 V 6 V 9 V 42AM-EC35 42AM-EC35
15

15 - WALL BRACKET
Drain sleeve
in COOLING mode,
outer diameter 32 mm
Connection
diameter
I BIS lter box
HEATING operationHEATING/COOLING operation
FRONT view
HEATING operationHEATING/COOLING operation
Bracket supplied by CARRIER
Model A B C D E F G H Connection diameter X Y Z
42AM-EC30 600 395 286 506 115 0 290 52 G 1/2" union 260 340 110
42AM-AC35
42AM-EC35 646 459 286 506 100 53 357 51 G 3/4" union 310 390 110
42AM-AC40
42AM-EC40 700 555 286 506 100 53 451 52 G 3/4" union 310 390 110
42AM-AC45
42AM-EC45 813 618 286 506 100 53 510 54 G 1" union 310 390 110
42AM-AC50
42AM-EC50 918 714 336 556 149 53 600 57 G 1" 1/4 union 260 340 135
42AM-AC63
42AM-EC63 1050 874 336 556 149 51 758 58 G 1" 1/4 union 260 340 135
42AM-AC64 1050 874 336 556 149 51 758 58 G 1" 1/4 union 260 340 135
16

17 - DIFFUSER ON DOOR
Assembly procedure:
1. Remove the double deection grille tted as standard on the Air Heater if this is present
2. Remove the CBLX 4.85x14.5 screws (A) which secure the guard plate (B) on the diffuser (C)
3. Fit the diffuser support against the Air Heater and secure it in place using the CBLX screws (D) provided
4. Ret the guard plate (B) and secure it with the CBLX screws (A)
Diffuser on door
+ unit during assembly
ATTENTION: Use a suitable system to mount the diuser
Diffuser on door
+ Unit as assembled
16 - FILTER BOX
Assembly procedure:
1. Remove the galvanised mesh lter to facilitate handling.
2. Remove the 4 x M8 screws found at the ends of the air heater.
3. Fit the lter box in position on the unit.
4. Ret the 4 x M8 screws in their original positions to secure the lter box in place.
5. Ret the galvanised mesh lter, held in place by the 2 brackets and the 2 buttery screws.
Filter box during assembly
Blanking cover (diameter 22.2 mm) for
fan motor assembly cable routing
Assembled lter box
Buttery screw
M8 metric screws
Galvanised mesh lter
17

18 - DIFFUSER FOR LARGE SPACES
Assembly procedure:
1. Remove the double deection grille tted as standard on the Air Heater if this is present
2. Remove the 6 CBLX 4.85x14.5 screws (A) which secure the grille (B) on the support (C)
3. Fit the diffuser support against the Air Heater and secure it in place using the CBLX screws (D) provided
4. Ret the grille (B) and secure it with the CBLX screws (A)
5. Fit the matching grille blanking covers supplied with this accessory (E)
Extra height diffuser
+ Unit during assembly
Extra height diffuser
+ Unit as assembled
19 - FINAL SHUTDOWN
Shutting down
■Separate the units from their energy sources, allow them to cool then drain them completely.
Recommendations for disassembly
■Use the original lifting equipment.
■Sort the components according to their material for recycling or disposal, in accordance with regulations in force.
■Check whether any part of the unit can be recycled for another purpose.
Fluids to be recovered for treatment
■ Energy transfer uid depending on the installation, water, glycol/water mix, oil etc.
Materials to be recovered for recycling
■Depending on the installation: steel, copper, aluminium, plastics
Waste Electrical and Electronic Equipment (WEEE)
■ At the end of its life, this equipment must be disassembled and contaminated uids removed by professionals and processed via
approved channels for electrical and electronic equipment (WEEE).
-In France, CARRIER has formed a partnership with ECOLOGIC for the collection and recovery of professional waste governed
by European Directive WEEE 2012/19/EU. This partnership simplies the mandatory administrative procedures and ensures that
old equipment is recovered via an ofcial, structured channel. In terms of renovation work in France (mainland and overseas),
for every CARRIER unit installed, our partner will collect and dismantle your existing equipment (see conditions with Ecologic).
To request collection, please contact Ecologic:
Tel.: [phone] - E-mail: [email protected]
-For other countries, please refer to the legislation in force and the specic solutions available to ensure your waste is processed
legally.
18

19

Administrative number: EN7436983-07, 11.2019 - Replaces No.: EN7436983-06, 06.2019
The manufacturer reserves the right to make changes to the product specications without notice. Printed in the European Union.