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
Control menus and adjustments (continued)
Downloading HeatNet firmware
Firmware can be downloaded to the control through the USB port (J6)
on the HeatNet control board. You can use either a PC or a ash drive, as
explained below.
If power is lost (or cycled) while downloading from a ash
drive, the download will be corrupted. Should this happen,
the control can only be operated by using a PC and HeatNet
soware to download the rmware correctly.
Downloading firmware using a PC
Disconnect wires to the Heat Demand terminals and any other remote 1.
operation wiring. ere must be no call for heat during the process.
Record all setup information for the application before proceeding 2.
(use SETUP WORKSHEET, page 55).
Insert the Firmware Update Program disk (or download executable 3.
le) into the computer. e program will auto-start if on disk (manu-
ally execute the program if working from a le on the computer).
Follow the instructions as the program progresses. (If a separate option 4.
is provided to install USB drivers, do so before running the rmware
update program.)
Plug a USB cable into the control connection board, with the other 5.
connected to the computer. THE CABLE MUST BE CONNECTED
BEFORE STARTING THE FIRMWARE UPDATE PROGM.
Follow the program instructions for selecting the correct com port and 6.
rmware le.
Navigate to the HeatNet control ADVANCED SETUP menu, to “SYS-7.
TEM.”
Move the cursor to “LOAD FIRMWARE.”8.
NOTICE: e rmware must be downloaded now for the HeatNet 9.
control to function again.
Return to the computer. Follow the rmware program instructions to 10.
begin downloading the rmware to the HeatNet control.
If the download is interrupted or fails, turn the boiler ON/OFF switch 11.
OFF, then ON. Restart the rmware download program to start the
download. (e boiler will appear unresponsive during this time be-
cause it is waiting for the download to take place.)
When the download is complete, the boiler will power cycle. e dis-12.
play should show STANDBY.
If the rmware does not load correctly, the display will remain blank. 13.
Try running the rmware program again.
Check that the boiler performs properly.14.
Downloading firmware from a flash drive
Disconnect wires to the Heat Demand terminals and any other remote 1.
operation wiring. ere must be no call for heat during the process.
Record all setup information for the application before proceeding 2.
(use SETUP WORKSHEET, page 55).
Directory3.
Create a directory in the root directory of the ash drive. Name the a.
directory, “Firmware.”
Copy the rmware le to the ash drive under this directory.b.
Enter setup mode on HeatNet control:4.
Press and hold the BACK key for 5 seconds.a.
Navigate to ADVANCED SETUP / SYSTEM: LOAD FIRM-b.
WARE.
Select YES using the arrow keys.c.
Press the SELECT key to proceed.d.
Select YES when prompted, “ARE YOU SURE?”e.
When SOURCE is displayed, select USB DRIVE.f.
Downloading procedure5.
Aer SOURCE is selected, the HeatNet control will display RE-a.
MOVE USB CABLE.
Remove any cable connected to the USB port (J6) on the Heat-b.
Net control board.
e control will display PLEASE WAIT while checking to ensure c.
there is no cable connected.
e control will next display INSERT USB DRIVE.d.
Plug the ash drive into the USB port (J6).e.
Press the SELECT key.f.
e control will display PLEASE WAIT.g.
e le names in the ash drive FIRMWARE directory will dis-h.
play on the rst line of the HeatNet control display.
Use the arrow keys to cycle through the les until the correct le i.
name is listed on the HeatNet control display.
Press the SELECT key to select the rmware le.j.
LOADING: xxxxxx will appear on the display, and the number k.
will increase as the le is loaded.
Once the le download is complete, the control will emit a series l.
of beeps to acknowledge the download is nished.
e control will no begin burning the new rmware code, indi-m.
cated by a chirping sound.
DO NOT interrupt power during this time or the rmware will n.
be corrupted. Should this happen, you will have to use a PC and
HeatNet soware to download the rmware.
If power is lost (or cycled) while downloading from a ash
drive, the download will be corrupted. Should this happen,
the control can only be operated by using a PC and HeatNet
soware to download the rmware correctly.
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