Camus Hydronics DMH 081 Installation, Operation And Service Manual page 48

DM 200 – 399
Figure 88: DM 200 – 399 Gas Valve
To adjust the high-fire setting
Use the DynaMax Control Panel
Press the [MENU] button > select Appliance Settings and
press [ENTER] > select Boiler Control and press [ENTER] >
Enter the correct Installer passcode.
Select 'H' for high power. The DynaMax should respond
immediately and fire at maximum fan speed.
Locate the high-fire adjustment screw on the top side of the
gas valve. The screw can be identified by a red cylinder
casing around the screw. Using a thin flat head screwdriver
turn the screw clockwise to increase CO
clockwise to decrease CO
2
either way for each adjustment to keep track of the
adjustments. After adjusting the screw wait a moment for the
combustion levels to stabilize before attempting to make any
further adjustments. Continue this procedure until
combustion levels are satisfied.
On the DynaMax Control Panel select 'O' to return to normal
operation.
To adjust the low fire setting
Use the DynaMax Control Panel
Press the [MENU] button > select Appliance Settings and
press [ENTER] > select Boiler Control and press [ENTER] >
Enter the correct Installer passcode.
Select 'L' for low power.
The DynaMax should respond immediately and fire at 1500
RPM. When this is achieved locate the low fire adjustment
screw as illustrated in Figure 88. Using a flat screwdriver
rotate clockwise to increase CO
clockwise to decrease CO
2
combustion values are achieved replace the screw cap back
on to the gas valve.
On the DynaMax Control Panel select 'O' to return to normal
operation.
levels and counter-
2
levels. Turn the screw 1/4 turn in
levels and counter-
2
levels. When the correct
DM 500 – 750
Figure 89: DM 500 - 750 Gas Valve
To adjust the high-fire setting
Use the DynaMax Control Panel
Press the [MENU] button > select Appliance Settings and
press [ENTER] > select Boiler Control and press [ENTER] >
Enter the correct Installer passcode.
Select 'H' for high power. The DynaMax should respond
immediately and fire at maximum fan speed.
Locate the input adjustment screw on the top side of the gas
valve. Using a flat head screwdriver turn the screw clockwise
to increase CO levels and counter-clockwise to decrease
2
CO levels. Turn the screw 1/4 turn in either way for each
2
adjustment to keep track of the adjustments. After adjusting
the screw wait a moment for the combustion levels to
stabilize before attempting to make any further adjustments.
Continue this procedure until combustion levels are satisfied.
On the DynaMax Control Panel select 'O' to return to normal
operation.
To adjust the low fire setting
Use the DynaMax Control Panel
Press the [MENU] button > select Appliance Settings and
press [ENTER] > select Boiler Control and press [ENTER] >
Enter the correct Installer passcode.
Select 'L' for low power.
The DynaMax should respond immediately and fire at 1500
RPM. When this is achieved locate the low fire adjustment
screw as illustrated in Figure 89. Using a flat screwdriver
rotate clockwise to increase CO
clockwise to decrease CO
2
combustion values are achieved replace the screw cap back
on to the gas valve.
On the DynaMax Control Panel select 'O' to return to normal
operation.
levels and counter-
2
levels. When the correct
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