Danfoss CTM 6 Installation guide

Installation guide

Multi Ejector
type CTM 6

Refrigerant:

R744 with oil

032R9797

Ambient temp. range:

-10 °C – +50 °C / 14 °F – 122 °F

Connector positions

CTM 6

Pressure
transmitter

B

(Pgc)

Pressure
transmitter

)

(P

D

0

Pressure
transmitter

)

(P

rec

Max. Working Pressure:

140 bar / 2031 psi

Ejector Ejector Ejector Ejector Ejector Ejector
1 2 3 4 5 6

Media temp. range:

-10 °C – +50 °C / 14 °F – 122 °F

Max. OPD: 90 bar / 1305 psi
Min. OPD: 0.1 bar / 1.45 psi

ENGINEERING

TOMORROW

Label

Strainer

English

High pressure inlet

A

Suction inlet

C

Receiver

EF

032R9797

The CTM Multi Ejector valve is approved for use only with

WARNING!

DISCLAIMER

WARNING!

General installation

•

• Coils available in 110-120V AC and 230V AC, 50/60Hz.

• It is recomended to place shut-off valves on all 3 connections.

• C and D connections can be moved from one side to the other if needed. Please be aware of the torque
of the screws.

• Evacuating the ejector is recommended to do on the outlet and on the high pressure side.

• Pressurizing the ejector should be done from the suction side first (Suction inlet C).

• It is recommended to install ejector after suction filter (Suction inlet C).

© Danfoss | DCS (rm) | 2019.11

Danfoss controller type AK-PC 78x, AK-CC 550A or

AK-CC 750A and AK-SM 8xx.

Danfoss expressly disclaims, and any responsibility or
liability, whether based on contract, breach of warranty,
tort, statute or otherwise, shall be excluded, if the CTM
Multi Ejector valve is used with any controller other than
a Danfoss controller type AK-PC 78x, AK-CC 550A or

AK-CC 750A and AK-SM 8xx.

For further information on AK-PC,
please see separate document.

• Do not disassemble / assemble the parts unnecessarily to avoid risk of breaking the O-ring,
dirt in the valve etc.

• Avoid high mechanical stress in connection with tube mounting / welding.

• Do not remove connectors during welding / brazing.

Always place the ejector with the coils upwards so the check valve inside can use gravity to close.

DKRCC.PI.VM0.A2.02 | 1

Mounting: With coils upwards

CTM Multi Ejector needs to be fixed to the
rack frame using 4 holes in the aluminum
block do avoid stress on the connectors

Brazing Welding

Danfoss

32F876.10

N

2

Danfoss
032F842.11

N

2

Max. 75 °C / 167 °F

Max. 700 °C / 1300 °F

Recommendation for brazing

Recommendation: brazing nozzle 4 - 6 mm ( 5/32 in - 15/64 in)
Materials used for brazing:

• Flux: Metalli tenacity No. 5 Powder or Braze Tec

special h paste.

• Filler: Silver-Flo 55 (BS:AG 14/ DIN L-Ag55 Sn) or Silver-Flo

56 (AWS B Ag-7).

Recommendation for TIG welding

• Power approximately 60 A.

• Use Shield gas charge - Argon.

• Material for welding - approximately
2 mm thick stainless steel alloy.

Warnin g: Filler metals containing Phosphor i.e. BS: CP 1/ DIN L-Ag 15P or BS: CP 3/ DIN L-Ag P7 must not be used.

Coil

On Off

Click!

Danfoss

Danfoss

Warning

Be sure that the O-ring is in place.

32F1002.10

Mounting D IN plug / LED DIN plug.

© Danfoss | DCS (rm) | 2019.11

Danfoss
32F1004.10

Armature tubes are sensitive and have to be protected
during the installation:

• do not damage the armature tubes with strokes or
forces

• do not lift or handle the block by lifting the armature
tubes etc.

• avoid pull-forces on the wires connected to the coils

32F882.10

Warning

Never switch on power to the coil when it is
dismounted from the valve. There is a danger the coil
may be damaged and a risk of injuries and burns.

DKRCC.PI.VM0.A2.02 | 2

Danfoss
032F841.11

Max. 75 °C / 167 °F

Danfoss
32F1004.10