HygroMatik Basic-DS User manual

Steam Bath
45.0 °C
°C F E L
SPA
Manual
Controls
Basic- DS
Comfort- DS
Comfort Plus- DS
Steam Bath
45.0 °C
°C F E L
IMPORTANT: READ AND SAVE THESE
INSTRUCTIONS
ÁDS.CSAUÈ
DS.CSA
E-8881716

SPA
Page 2
Risk of electrical shock!
Hazardous electrical high voltage!
All electrical work to be performed by certified expert staff (electricians or expert personnel with eqivalent
training) only.
Certain computer programs contained in this product [or device] were developed by HygroMatik GmbH
("the Work(s)").
Copyright © HygroMatik GmbH [01.03.2017]
CSA: Basic-DS, Comfort-DS and Comfort Plus-DS
All Rights reserved.
HygroMatik GmbH grants the legal user of this product [or device] the right to use the Work(s) solely within
the scope of the legitimate operation of the product [or device]. No other right is granted under this licence.
In particular and without prejudice to the generality of the foregoing, the Work(s) may not be used, sold,
licensed, transferred, copied or reproduced in whole or in part or in any manner or form other than as
expressly granted here without the prior written consent of HygroMatik GmbH.
Information in this manual is subject to change or alteration without prior notice.
Current version of this manual can be found at: www.hygromatik.de/us

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1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Typographic Distinctions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Symbols in Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.3.1 Specific Symbols related to Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.4 Intended Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2. Safety Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1 Guidelines for Safe Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1.2 Unit control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1.3 Unit operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1.4 Mounting, installation, maintenance, repair and dismantling of the unit . . . . . . . . . . . . . . . . . . . 9
2.1.5 Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3. Comfort- DS / Comfort Plus- DS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1 General View of DS-Control and Operating Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2 Communication with the Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2.1 Function Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.3 DS-Comfort and DS-Comfort Plus Compared . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4. User Mode - Communication with the Control (Comfort-DS/ Comfort Plus-DS) . . . . . . . . . . . 14
4.1 Changing Steam Bath Parameters in User Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.1.1 Modifying the Temperature Set Value (G2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.1.2 Steam Bath Exhaust Fan (D1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.1.3 Essence Delivery System - Function (D2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.1.4 Light - Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.2 Overview of Steam Bath Operation and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.2.1 Steam Bath Installation (Schematic Layout) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.2.2 Steam Bath - Temperature Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.2.2.1 Temperature Profile in Steam Bath Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5. Operating Mode - Advanced Communication with the Control (Comfort-/Comfort Plus-DS) 20
5.1 Introduction to the Comfort- DS / Comfort Plus- DS Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.2 Software Menu and Parameter Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.2.1 Access to Operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.2.2 Function Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.3 Operating Mode - Description of Accessible Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.3.1 Language Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.3.2 Start-Up Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.3.2.1 Control Parameters Submenu (under Startup Menu) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.3.2.2 System Test Submenu (under Startup Menu) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.3.3 Electronic Name Plate Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.3.4 Parameter Setting Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6. Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6.1 Summary Table of Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6.2 Explanation of Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
6.2.1 Steam Bath Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
6.2.1.1 Steam Bath Mode D0 (Operating Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
6.2.1.2 Exhaust Fan D1 (Operating Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.2.1.3 Essence D2 (Operating Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.2.1.4 Light D3 (Operating Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.2.1.5 Supply Fan D4 (Operating Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.2.1.6 Limitation of operating time D5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.2.2 Steam Bath Parameters (G0 - G9, G13). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.2.2.1 Calibration °C Actual °C (G0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.2.2.2 Hysteresis Controller (G1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.2.2.3 Steam Bath °C Set Value (G2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.2.2.4 Hysteresis Exhaust Fan (G3). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

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6.2.2.5 Time Essence Injection (G4). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
6.2.2.6 Interval Time Essence Injection (G5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
6.2.2.7 Hysteresis Essence Injection (G6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
6.2.2.8 Hysteresis °C Max (G7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
6.2.2.9 Fan Run-On Time (G8) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
6.2.2.10 Power Retention (G9) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
6.2.2.11 Hysteresis Supply Fan (G13) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
6.2.3 Humidifier Operating Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
6.2.3.1 T0 Timer Mode (only available with Comfort Plus-DS Control) . . . . . . . . . . . . . . . . . . . . . . . 47
6.2.3.2 Values and Operational Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
7. Basic- DS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
7.1 Basic Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
7.1.1 Basic-DS Display Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
7.2 Basic-DS Main PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
7.3 Parameter Setting with Jumpers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
7.3.1 Brief Description of Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
7.3.2 Explanation of Jumper Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
7.3.3 Description of Potentiometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
7.3.3.1 Potentiometer P1 / Steam Generation Output Limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
7.3.3.2 Potentiometer P2 / Pump Run Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
7.3.4 Potentialfree Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
7.3.4.1 Collective Fault - Base Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
7.3.4.2 Humidification:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
7.3.4.3 Signal Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
8. Fault Messages (Comfort- DS / Comfort Plus- DS und Basic- DS). . . . . . . . . . . . . . . . . . . . . . 59
9. For the Installer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
9.1 Temperature Sensor Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
9.1.1 Temperature Sensor Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
9.2 Installation of Essence Injector with Peristaltic Pump (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . 63
9.2.1 Connection for Essence Injector with 24V Peristaltic Pump Type EP24 (Optional)* . . . . . . . . . 64
9.3 Fan Installation (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
9.3.1 Connection for 24V Steam Bath Exhaust Fan (Optional)* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
9.3.2 Connection for 24V Steam Bath Supply Fan (Optional)* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
9.4 Cabin Light Installation (Optional). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
9.4.1 Cabin Light Connection (Optional). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
9.5 Remote Switch / Safety Interlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
10. Potential Free Signal Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
10.1 Base Relay and Signal Relay PCB capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
10.1.1 Base Relay and Collective Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
10.1.2 Signal Relay PCB and Steam Bath Functions* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
11. Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
12. Faults and Messages / Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
13. Basic PCB Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
14. Terminal Assignments on the Unit Connector Strip and Wiring Diagram Legend. . . . . . . . 81
15. Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
16. Ordering Information / Table of Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
17. Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

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1. Introduction
Dear Customer,
Thank you for choosing a HygroMatik steam humidifier.
HygroMatik steam humidifiers represent the latest in humidifica-
tion technology.
In order to operate your HygroMatik steam humidifier safely, pro-
perly and efficiently, please read these operating instructions.
Employ your steam humidifier only in sound condition and as
directed. Consider potential hazards and safety issues and fol-
low all the recommendations in these instructions.
If you have additional questions, please contact us:
Tel.: [phone] / 895-0 (Main Number)
Tel.: [phone] / 895-293 (Technical Support Hotline)
Fax: [phone] / 895-33
e-mail: [email protected]
For all technical questions or spare parts orders, please be pre-
pared to provide unit type and serial number (see name plate on
the unit).
1.1 Typographic Distinctions
•preceded by a bullet: general specifications.
» preceded by an arrow: Procedures for servicing or
maintenance which should or must be performed in the
indicated order.
Installation step which must be checked off.
italics Terms used with graphics or drawings.
1.2 Documentation
Retention
Please retain these operating instructions in a secure, always
accessible location. If the product is resold, turn the documenta-
tion over to the new operator. If the documentation is lost, please
contact HygroMatik.
Versions in Other Languages
These operating instructions are available in several languages.
If interested, please contact HygroMatik or your HygroMatik dea-
ler.

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1.3 Symbols in Use
1.3.1 Specific Symbols related to Safety Instructions
According to ANSI Z535.6 the following signal words are used
within this document:
DANGER indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
WARNING indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
CAUTION indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
NOTICE is used to address practices not related to physical
injury.
1.4 Intended Use
HygroMatik steam humidifiers serve for steam production using
different tap water qualities or partial softened water (all humidi-
fier types) or fully demineralized water/cleaned condensate
(heater element humidifiers only).
Proper usage also comprises the adherence to the conditions
specified by HygroMatik for:
• installation
• dismantling
• reassembly
• commissioning
• operation
• maintenance
•disposal.

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Only qualified and authorised personnel may operate the unit.
Persons transporting or working on the unit must have read and
understood the corresponding parts of the Operation and Main-
tenance Instructions and especially the chapter 2. „Safety
Notes“. Additionally, operating personnel must be informed of
any possible dangers. You should place a copy of the Operation
and Maintenance Instructions at the unit‘s operational location
(or near the unit).
By construction, HygroMatik steam humidifiers are not qua-
lified for exterior application.
Risk of scalding!
Steam with a temperature of up to 212 °F is produced.
Do not inhalate steam directly in order to avoid respiratory
damage!

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2. Safety Instructions
These safety instructions are required by law. They promote
workplace safety and accident prevention.
2.1 Guidelines for Safe Operation
2.1.1 General
Comply with the accident prevention regulation „DGUV Regula-
tion 3“ to prevent injury to yourself and others. Beyond that,
national regulations apply without restrictions.
2.1.2 Unit control
Do not perform any work which compromises the safety of the
unit. Obey all safety notes and warnings present on the unit.
In case of a malfunction or electrical power supply disruption,
switch off the unit immediately and prevent from restart. Repair
malfunctions promptly.
Restricted use
This unit is not designed for the use by persons (also children)
with limited physical, sensory and mental abilities - or without
knowledge and experience - unless they are supervised or trai-
ned by a person, who is responsible for their safety.
Supervise children in order to ensure that they will not play with
the unit.
2.1.3 Unit operation
Risk of scalding!
In case of leaking or defective components, hot steam may exit
in an uncontrolled manner.
Switch off unit immediately.
Risk of material damage!
The unit may be damaged if switched on repeatedly following a
malfunction without prior repair.
Rectify defects in return!

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• The unit must not be operated on a DC power supply
• The unit may only be used connected to a steam pipe that
safely transports the steam (not valid device type Mini-
Steam)
• Regularly check that all safety and monitoring devices are
functioning normally
• Do not remove or disable safety devices
2.1.4 Mounting, installation, maintenance, repair and
dismantling of the unit
Explosion hazard!
Ignitable gas mixture may built up in the steam cylinder due to
improper installation of essence feeding.
It is the responsibility of the unit installer and the steam bath pro-
vider to ensure that no condensated essence may drip from the
steam pipe back into the steam cylinder. Essence line entry
point in steam line must allow a 5 to 10% decline of essence line
away from steam generator.
The HygroMatik steam humidifier is IP20 protected. Make sure
that the unit is not object to dripping water in the mounting loca-
tion.
When installation is made in a room without a drain, safety pre-
cautions must be taken in order for to shut off the humidifier‘s
water supply in event of a leak.
• Use genuine spare parts only
• After any repair work, have qualified personnel check the
safe operation of the unit
• Attaching or installing of additional components is per-
mitted only with the written consent of the manufacturer
• The operator is responsible for the disposal of unit compo-
nents as required by law

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2.1.5 Electrical
Risk of electrical shock!
Hazardous electrical high voltage!
Any work on the electrical system must only be performed by
qualified personnel.
Disconnect unit components from electrical power supply prior
to work.
After electrical installation or repair work, test all safety mecha-
nisms (such as grounding resistance).
Only use original fuses with the appropriate amperage rating.
Regularly check the unit‘s electrical equipment. Promptly repair
any damage such as loose connections or burned wiring.
Responsibility for intrinsically safe installation of the HygroMatik
steam humififiers (steam generators) is incumbent on the instal-
ling specialist company.

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3. Comfort- DS / Comfort Plus- DS
The display and operating panel enables local communication with the
steam generator.
3.1 General View of DS-Control and Operating
Panel
DS-Control Display and Operating Panel
The display is supplied as a four-line, lighted LC-display. Once the
humidifier is switched on, it shows:
1st Line: Operating mode of the steam bath steam generator and sta-
tus of fan, essence delivery and light.
2nd Line: active temperature in the cabin (°C)
3rd Line: normally blank
4th Line: function settings for the fan, essence delivery system and
light
The humidifier operational conditions steam production / humidifica-
tion / filling and blow-down can also be displayed and are indicated
by the three middle yellow LEDs on the operating panel (see graphic
below).
In case of a steam generator malfunction, the topmost red LED blinks.
The control automatically shuts off the steam generator.
The lowermost green LED indicates that the steam humidifier is
switched on and ready.
Steam Bath F E L
X.X °C
°C F E L

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LED colors:
red
yellow
yellow
yellow
green
A: Malfunction
B: Steady LED = humidification; blinking LED = maximum water
C: Filling
D: Blow-Down
E: Steady LED = ready; blinking LED = maintenance interval
3.2 Communication with the Control
Local communication with the Comfort / Comfort Plus control (data
input and output) is possible using the display and keypad.
Access modes for communication with the steam bath control are
divided into:
-theUser Mode (access for daily use), also see Section “User
Mode - Communication with the Control”
-theOperating Mode (access for initial operation and mainte-
nance), also see Section “Software Menu and Setting Param-
eters”
3.2.1 Function Keys
Keys are located below the display. Above
each key, a context-based action (software key) is shown on the lowest
line of the display (i.e. an “°C” key). The action is performed by press-
ing the key. The software keys in the display unit enable parameter
modification.
Keys

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3.3 DS-Comfort and DS-Comfort Plus Compared
Comfort- DS
Comfort Plus- DS
Encoder Knob
Unlike the DS-Comfort, the DS-Comfort Plus is equipped with an addi-
tional encoder knob for easy use.
Turning the knob left or right is equivalent to pressing the software keys
“up arrow“ or “down arrow“.
Pushing down the encoder corresponds to pressing the software key
“Enter”.
When using the encoder knob, an additional option for selection
appears in the menus and submenus: “Back”. If the underscore (cur-
sor) is located under “back” and the encoder knob is depressed, the
control jumps to the next higher menu.
In addition, the Comfort-Plus Control features a timer function (Param-
eter T0), also see Section “Humidifier Operating Parameters”.

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4. User Mode - Communication with the Con-
trol (Comfort-DS/ Comfort Plus-DS)
After switching on the steam humidifier, the user is placed in user
mode.
This mode includes the indicators and controls needed to modify the
following parameters:
- Temperature Set Value °C - (Key )
- Steam Bath Fan Function F - (Key )*
- Essence Delivery Function E - (Key )*
- Cabin Light Function L - (Key )*
*: no function for steam generators type C01 and C02
The active steam bath temperature is always simultaneously dis-
played.
For safety reasons, modifications to steam bath parameters in user
mode are temporary, i.e. they are lost when the steam humidifier is
switched off. Upon restart the unit operates with the previously entered
parameter settings.
Stable parameter modifications are done in operating mode, also see
Section “Operating Mode - Advanced Communication with the Con-
trol”.
4.1 Changing Steam Bath Parameters in User Mode
Risk of scalding!
Steam bath may achieve very high temperature.
Before changing steam bath parameters, consider the consequences!
Setting the desired steam bath temperature value too high may lead to
serious injuries.
Steam bath operation and installation is described in the next section.
4.1.1 Modifying the Temperature Set Value (G2)
In user mode, the temperature may be modified in increments of 0.5°C.
Example: To reduce the desired temperature value from 45°C/113°F
to 42°C/107.6F.
» Switch on steam generator. The display indicates the type of
operation and the active cabin temperature.
» Press once. The programmed temperature value
appears on the display.
Please note
Please note
Steam Bath
45 °C
°C F E l
Steam Bath
45 °C
45 °C
Menu

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» Hold down until the temperature value 42°C/107.6°F
appears on the display.
» Press once.
The new temperature set value is programmed. After a few seconds,
the program jumps back to the standard display. The display again
indicates the active cabin temperature.
Concerning Parameter G2, also see Section “Steam Bath Parameters
(G0 - G9, G13)” .
4.1.2 Steam Bath Exhaust Fan (D1)
Automatic - Function
On the automatic setting, the fan operation is a function of the steam
bath temperature. The control switches on the steam bath fan when
the set temperature level is reached and switches it off again when the
temperature falls below the set value, minus the hysteresis for the
steam bath fan (Parameter G3).
Also see Parameters “Temperature Set Value” (G2) and “Hysteresis
Steam Bath Fan” (G3). The automatic setting is preset in the factory
and is indicated on the display by an F.
More details to be found in the graph, also see Section “Steam Bath -
Temperature Control”.
Continuous Operation (Continuous On) - Function
With this setting the steam bath fan operates continuously regardless
of the temperature in the steam bath. Set this mode by pressing the
key once after start-up.
The display now indicates ffor continuous operation of the fan. If an F
is shown in the 1st line of the display, the fan is being controlled.
4.1.3 Essence Delivery System - Function (D2)
Automatic
The automatic setting for the Parameter “Essence Injector” (D2) is
indicated by an Ein the display; essence is injected according to the
programmed essence delivery interval (G5) and Injection Duration
(G4). The factory setting for the essence delivery interval is 5 minutes
and the setting for the essence injection duration is 2 seconds.
Steam Bath
45 °C
42 °C
Menu
Steam Bath
42 °C
Menu
Please note
Steam Bath
45 °C
°C FE l
Please note
Steam Bath F
45 °C
°C fE l
Steam Bath E
45 °C
°C F El

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Delivery System Off
By pressing the key once, the Essence Injector Parameter is set
continuously to off. This is indicated in the display by an eand results
in no essence delivery into the steam bath.
4.1.4 Light - Function
Light (on / off)
In the factory, the light in the steam cabin is switched off for initial oper-
ation. This is indicated by an lin the display. By pressing the key
once, the cabin light is switched on.
The display now shows an Lto indicate continuous operation of the
light. If an Lis present in the 1st line of the display, the cabin light is
operating.
4.2 Overview of Steam Bath Operation and Installa-
tion
The necessary steam for the operation of the steam bath is supplied by
the HygroMatik Steam Generator. The recorded temperature in the
steam bath is the only control variable for controlling steam production.
At the default setting, the steam bath achieves a temperature of about
45°C/113°F at 100% relative humidity. A steam bath air supply fan may
be used to deliver fresh air, and an exhaust fan to remove warm air
from the steam bath, in order to ensure continuous steam supply and a
stable temperature control.
Heat-Up Phase:
Steam is supplied to the still cold steam bath, increasing the relative
humidity to 100% at an initially constant temperature. Subsequent
steam delivery then increases the temperature; the relative humidity
remains at 100%.
Operating Phase:
When the desired temperature (plus hysteresis) is reached, steam pro-
duction is interrupted. If the steam bath temperature falls below the
desired value, steam is again delivered into the cabin.
The optional HygroMatik steam bath driving functions for light, fans
and essence injection may be ordered in 24 V or 230 V versions. How-
ever, for installation within the steam cabin, only safe low voltage is
allowed.
Steam Bath
45 °C
°C F el
Steam Bath
45 °C
°C F e l
Steam Bath L
45 °C
°C F e L
Please note

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4.2.1 Steam Bath Installation (Schematic Layout)
The illustration below depicts a schematic layout for a steam bath - it is
not an installation instruction.
Location Designation
1 Steam generator
2 Essence peristaltic pump
3 Essence reservoir
4 Essence line to steam hose
5 T-piece for essence feed into the steam hose
6Steamhose
7 Steam manifold in steam bath
8 bath supply fan
9 Temperature sensor
10 bath exhaust fan
11 Cabin light
Please note
8
6
2
3
4
5
7
10 11
91

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4.2.2 Steam Bath - Temperature Control
With any steam bath, a temperature sensor must be installed in the
cabin. The temperature sensor measures the temperature in the
steam bath and is connected to the steam generator.
The DS-Comfort or DS-Comfort Plus controls the HygroMatik steam
generator according to the temperature reading. The relative humid-
ity is not measured since it is always 100% following the heat-up
phase.
In addition, depending on your order preference, you can connect an
essence injector, light and fan to the steam generator.
The sample diagram below shows how the DS-Control functions:
Parameters G1 to G4 + G13 (may only be modified in operating mode)
are programmed as follows:
Hysteresis Temperature Controller (G1)= 1K
Hysteresis Steam Bath Exhaust Fan (G3) = 1K
Hysteresis Steam Bath Supply Fan (G13) = 1K
Steam Bath Temperature Set Value = 45°C/113°F
If the temperature in the steam bath falls below 45°C/113°F, an adjust-
ment is made by increasing steam production.
If the temperature in the steam bath rises above 46°C/114.8°F, steam
production is shut off with 1-step operation or adjusted downwards with
continuous operation.
The release point for the steam generator is determined as follows:
Steam Bath °C Set Value (G2)+Hysteresis °C-Controller (G1) =
45°C/113°F+1K = 46°C/114.8°F.
If the temperature in the steam bath rises above the programmed tem-
perature set value of 45°C/113°F, the DS-Control activates the steam
bath exhaust fan. The control switches off the exhaust fan below 44°C/
111.2°F. The release point for the steam bath exhaust fan is deter-
mined as follows:
Steam Bath °C Set Value (G2) -
Hysteresis °C Steam Bath Exhaust Fan (G3) =
45°C/113°F - 1K = 44°C/111.2°F
The Parameter “Steam Bath Exhaust Fan” (D1) must be programmed
to „automatic“.
Steam is only produced as long as the temperature in the steam bath
remains below the “set temperature value.” If the temperature in the
steam bath remains above the “set temperature value” for a long
period of time, resulting in this case in no visible steam production,
this could be due to:
• excessively high heat supply from an additional source, e.g.
from heated benches.
• a well-insulated steam bath
• too little air flow in the steam bath.
Please note

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Air flow in the steam bath is facilitated by a steam bath exhaust fan,
causing the temperature in the steam bath to fall more quickly.
Renewed steam production compensates for the drop in temperature.
In this way, the fan ensures constant, stable steam production - with
visible steam in the cabin.
4.2.2.1 Temperature Profile in Steam Bath Diagram
Temperature Profile in Steam Bath
A: Duration / Essence Delivery
B: Interval / Essence Delivery
off
on
Temperature
114.8 °F
113.0 °F
111.2°F
Steam Production
Steam Bath
Exhaust Fan
Steam Bath
Supply Fan
Essence Delivery
Time

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5. Operating Mode - Advanced Communica-
tion with the Control (Comfort-/Comfort
Plus-DS)
5.1 Introduction to the Comfort- DS / Comfort Plus-
DS Control
Control of your HygroMatik steam humidifier is performed by sophisti-
cated microprocessors. These microprocessors intelligently and self-
adaptively select the most economical mode of operation for the steam
humidifier appropriate to the existing water quality. Optimized start-up
procedures provide rapid steam production and quick responses to all
control operations. The HygroMatik control regulates the complete
blow-down procedure and the operation of the water inlet solenoid
valve. For electrode steam humidifiers, it self monitors to control the
conductivity of the cylinder water.
The HygroMatik microprocessor control Type DS supplies the user
with all relevant data.
The Comfort- DS /Comfort Plus- DS Control features:
• a lighted alphanumeric LC-Display
• an (optional) RS232 or RS485 interface as the basis for the
Modbus RTU protocol
• optimal adaptivity of the steam generator due to wide parameter
adjustability
• 5 LEDs on the display panel give an instant overview of the most
important operations
• Stand-by blow-down to prevent standing cylinder water. After a
long period with no steam production, the cylinder is completely
drained.
• 4 connections for control of the steam bath supply and exhaust
fans, essence delivery system and light
• Remote control (optional)
• selection of steam bath operations with or without status indica-
tor
• variable temperature control depending on operational mode
The performance options and available settings for your HygroMatik
Control Type DS-Comfort and DS-Comfort Plus are explained below in
detail.
Both the HygroMatik Comfort Control and the Comfort Plus consist of a
main PCB and a display unit with back-lighted display, as well as an
LED with icons and keys for direct communication with the control.