Danfoss VZH Series User Manual

The compressor must only be used for its
designed purpose(s) and within its scope of
application (refer to «operating limits»).
Consult Application guidelines and da-
tasheet available from http://cc.danfoss.com
Under all circumstances, the
EN378 (or other applicable local
safety regulation) requirements
must be fullled.
The compressor is delivered under nitro-
gen gas pressure (between 0.3 and 0.7
bar) and hence cannot be connected as is;
refer to the «assembly» section for further
details.
The compressor must be
handled with caution in the
vertical position (maximum
oset from the vertical : 15°)
FRCC.EI.024.A1.02 © Danfoss Commercial Compressors 10/12
1
Oil injection control assembly
Put the clip-on coil (1) with the gasket (2) over
the valve body (3) on the compressor
3 2 1
4
5
6
Attach the connector (4) to the coil using the
delivered accessories (5) and (6).
24V or
220V
2 A max
Wire the connector as indicated and plug it to
the CDS303 relay 1 location.
Oil injection control dismantling
Remove the clip-on coil by using a screw
driver.
INSTRUCTIONS
VZH COMPRESSORS
Oil injection
control valve
Single version
Oil level
monitor
Manifold version
A: Model number
B: Serial number
C: Refrigerant
D: Supply voltage to CDS303 frequency converter
E: Housing service pressure
F: Factory charged lubricant
G: Compressor frequency & Max Must trip cur-
rent
E
F
C
D
A
B
G
15
25
35
45
55
65
75
Tc (°C)
30-90 rps
Te (°C)
-30 -20 -10 0 10 20
30-90 rps
25-100 rps
SH 6K
High P/R Low P/R
R410A

Danfoss VZH Series Specifications

General

Compressor Type	Scroll
Variable Speed	Yes
Refrigerant	R410A, R407C
Application	Air Conditioning
Cooling	Air Cooled

Summary

Introduction and Safety

Introduction

Provides an overview of VZH Variable Speed scroll compressors and their usage.

Handling and Storage

Guidelines for safely handling and storing the VZH compressor.

Safety Measures Before Assembly

Crucial safety precautions to observe prior to compressor installation.

Installation and System Preparation

Assembly

Steps and considerations for physically mounting and connecting the compressor.

Leak Detection

Procedures and warnings for detecting leaks in the refrigeration system.

Vacuum Dehydration

Instructions for evacuating the system to remove moisture.

Filling the System

Guidance on charging the system with refrigerant and charge limits.

Electrical Connections and Verification

Electrical Connections

Details on wiring the compressor and frequency converter.

Verification Before Commissioning

Checks required before starting up the compressor and system.

Operation and Maintenance

Start-up

Procedure for safely starting the compressor.

Check with Running Compressor

Monitoring parameters during compressor operation.

Maintenance

Recommended periodic checks for system reliability.

Warranty

Conditions and requirements for product warranty claims.

Disposal

Guidelines for the environmentally sound disposal of components.