INS UCTIONS

Maneurop® VTZ&

Compressor Drive™

8510223 P01-A © Danfoss Commercial Compressors March 2006 Danfoss CommercialCompressors

-1 0.5% slope4m/sormore

LPmax.4m

11

max.4m0.5% slope Evaporator

4m/sor more-Fig.lFig.3

Fig.2

Suction pipe selection VTZ038 VTZ054 VTZ086 VTZ121 VTZ171 VTZ215 VTZ242

R404A Mini riser (A) 1/2" 1/2" 5/8" 3/4" 7/8" 1"1/8 1"1/8

-10/+45°C Max riser (B) 5/8" 3/4" 7/8" 1"1/8 1"3/8 1"3/8 1"3/8

Suet. Header (Cl 3/4" 7/8" 1"1/8 1"3/8 1"5/8 1"5/8 1"5/8

For the application envelopes of the different va-riable speed compressors and applicable refrige-

Application Envelopesrant refer to the Danfoss Commercial Compres-sors dedicated application guidelines.

• InstallationMake always sure that there is no possibility ofexhaust hot air by-pass from the drive. This willlead to overheating thermal trip of the inverter.

The wiring of a variable speed system is to bedone in a very professional way.The main precautions on assembly has to be

done in relation with the present drawings.Generally speaking shielded cables have to beused all over the frequency converter and va-riable speed compressor, except network line tofrequency converter.

3 PhaseQPowerInput

91 (L1)92 (L2)93 (L3)

95 PE -

Motor cable must be screened/armoured. Usethe accessory decoupling plate. Make sure theearth wire is connected to the earth terminal

• Control cablesControl cables must be screened/armoured. Usethe clamp from the accessory bag to connect

connected on both end of the cable: freqlll,ncyconverter and compressor.

on this plate and install the screened part of themotor cable as shown on the above drawings.Earth wire and screen cable part must be earth

the screen to the decoupling plate for controlcables.

Analogoutput

Analoginput

I

Digital Ioutput I

II-.J50 53 54 55

> > 0 :2~o~~8

~ <5

60 61«EoN

~

to externalfault relay

,/ Reference / Ramps'/Parameter 3.01- bar'/Parameter 3.02 - -1 bar'/Parameter 3.03 - +12 bar'/Parameter 3.10 - suction pressure adjus-

tement required as a percentage of the sensorpressure range (28% for 3.4 bar - -1OCCR404Aj

To switch from open loop to process loop cablesignal connections have to be done has shownbelow.

The only parameters modifications are:,/ Load / motor

,/ Parameter1.o0-Configuration mode: Process

'/Parameter 3.15-Reference ressource 1-nofunction

'/Control: Analog signal 4-20 mA for -1 /12 baris connectected on input 54

'/Control Input 54: switch it on I position(switch located back to the local control panel)

Analogueoutput

Analogueinput

IDigital Ioutput I

II-.J

19 20 29 32 33 39 42 45 50 53 55 60 61::2' « « > > :2 «

E E E_~ =:5 0 0 0<=> ~ 0 0

'"a- 0 N N :;:- 0 N'-' .!: :± :± +1 :±3S 8;; <=> <=> <=> <=>-§ c0

0 '"a- i'l0 .s;~ '""0