Instruction manual

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P/N HN-IOM-1 82-0331 Copyright 2009 Mestek, Inc.
Finned copper tube gas boilers & water heaters – Control manual
Table 9 Setup menus — parameter explanations (continued)
Menu item Under . . . Explanation
PRIORITY
ADVANCED SETUP
4-20mA INPUT
When this is set to NORMAL, the priority of a 4-20mA input (when enabled by closure across
the 4-20mA enable terminals) is in the normal order: AA (high fire), HEAT DEMAND, HeatNet,
4-20mA, T1/T2.
When set to HIGHEST, the priority sequence is changed to give 4-20mA the highest priority
(above AA).
NOTE: The SETPOINT SOURCE (under SETUP | SETPOINTS) must be set to AUTO for HIGHEST
priority to work. The control cannot be placed in LOCAL mode if this PRIORITY is enabled and
active.
CHANGE PASSWORD
ADVANCED SETUP
PASSWORD
Use to set/change a password.
NOTE: You can reset the password to the default value (AAAAAA) by turning the ON/OFF
switch to OFF. Then hold down the BACK key as you turn the ON/OFF switch to ON.
The password is only required if the control is setup with SKIP PASSWORD set to NO, found
under: SETUP | OPTIONS | SKIP PASSWORD.
BAUD
ADVANCED SETUP
COMMUNICATIONS
9600
PARITY
ADVANCED SETUP
COMMUNICATIONS
Select even or odd as required by communications port used.
MODEM
ADVANCED SETUP
COMMUNICATIONS
Select “YES” only if a modem is installed.
LOAD DEFAULTS
ADVANCED SETUP
Load the factory defaults when you want to be sure nothing has been changed or after you
have loaded new firmware.
Disconnect wires to the Heat Demand terminals and any other remote operation wiring. 1.
There must be no call for heat during the process.
Navigate the control display to “LOAD DEFAULTS.”2.
To restore factory calibration settings or factory settings, section either of the options and 3.
select “YES” for the prompt, “ARE YOUR SURE?”
FIRMWARE VERSION
(UPDATE CONTROL?)
ADVANCED SETUP
SYSTEM
The firmware version in the control must match the version in this manual in order to ensure
accuracy of the installation/operation information. The control displays the firmware version
number when SETUP is accessed. To update the control’s firmware, obtain a disk from RBI or
download the current file from the RBI website.
See instructions on the following page for the procedure to load firmware to the
HeatNet control, either from a PC or from a flash drive, as explained.
APPLICATION
This is the type of heating application that the boiler will perform. Select HEAT if the boiler
is to be used for building heating. Select DHW if the boiler is to heat domestic hot water.
This setting makes sure the HeatNet control display displays the correct terms on its status
screens.
Control menus and adjustments (continued)
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