65
ENG
Checks before commissioning
g0300122EN rel. 1.0 - 01.12.2021
Menu
Index
Description
Level
g. Initialisa-
tion
Wizard
Eg01
Start the wizard for initial unit confi guration
Set whether to display the wizard when next restarting
Service,
Installer
Language
Eg02
Set the language
Service,
Installer
Unit of measure
and language when starting
Eg03
Set unit of measure (International or Imperial). Select the language
when starting
Installer
Change password
Eg04
Change the password (Service, Installer).
Service,
Installer
Inst. default
Eg06
Unit factory reset.
Caution, changing the model will clear all the settings
on the controller and restore the factory default values
Service,
Installer
Software update
Eg07
Update the unit software from USB pen drive
Service,
Installer
Export parameters
Eg08
Export the unit confi guration parameters to a USB pen drive
Service,
Installer
Import parameters
Eg09
Import confi guration parameters from USB pen drive to the unit
Service,
Installer
h. Super-
visor
Unit BMS port address
Eh01
Set the unit's address for the supervisor
Enable supervisor type and protocol
Installer
BMS port communication settings
Eh02
Set the supervisor communication parameters via BMS: baud rate,
stop bits and parity bits
Installer
BACnet MS/TP
confi guration
Eh03
Set address, maximum number of main units
and maximum number of frames
Installer
Device instance
Eh04
Confi gure device inst. for BACnet protocol
Installer
Ethernet network settings
Eh05
Set DHCP, IP address, mask, gateway, DNS for
the Ethernet network
IMPORTANT
: these values must be provid-
ed by the local network administrator
Installer
Supervisor settings on Ethernet
port
Eh06
Select the protocol on the Ethernet port: ModBus or BACnet
Installer
Control from supervisor
Eh07
Select the port that the supervisor is connected to
Enable unit On/Off and control from supervisor
Installer
Supervisor offl
ine alarm
Eh08
Enable supervisor offl
ine alarm and set alarm activation delay
Installer
Monitoring service
Eh09
Read unit paused by monitoring service status, enable unit paused
bypass, set automatic disabling of paused bypass
Installer
i. Logout
Logout
Ei01
Information on the type of login performed
Possibility to log out
Service,
Installer
Tab. 11.h
11.8
O
peration and control
Before describing the electrical connections to the terminals in detail, below is an introduction to the humidifi er control princi-
ples.
11.8.1
O
perating principle of a gas-fi red humidifi er
In a gas-fi red humidifi er, the production of steam is obtained inside a boiler containing water that is heated to and then held at
boiling temperature. The heat required to boil the water is provided by a heat exchanger, heated by a modulating premixed gas
burner. Burner operation is completely automatic and there is no pilot fl ame. All stages of burner operation are managed by an
electronic board that, through ionisation control, constantly checks the fl ame. The continuously-delivered heat output refl ects
heat demand, across a wide modulation ratio (1: 4). The variable-speed fan (driven by the control board), combined with a pro-
portional gas valve, ensures modulation of heat output (the gas fl ow-rate is proportional to the air needed for combustion). The
water that evaporates over time is automatically replenished from the mains supply. When fully operational, the required level of
production is achieved automatically by adjusting the heat output of the burner. The salts introduced by automatically refi lling
the water partly deposit in the form of scale inside the boiler, causing a progressive decline in performance, and partly remain
dissolved in the water. To avoid excessive accumulation of salts, a certain amount of water is periodically and automatically
drained, and then replaced with fresh water.
Control principles
The humidifi er can be confi gured to ensure the desired humidity or temperature value. It can be controlled in the following
ways:
11.8.2
ON
/
OFF
control
Operation is all or nothing, and is activated by an external contact; the maximum percentage of unit production can be set.