47
8.1
SETTING THE CORRECT COMBUSTION
1) Switch the main power off to the boiler by placing the
toggle switch in the ‘OFF’ position
2) Switch the main power on to the boiler and adjust set
point so that boiler begins ignition sequence.
3) Observe the boiler as it goes through its startup cycle
and operates at high fire.
4) Insert the combustion measurement probe into the stack
when high fire operation is observed. Check to see that
fan is running at maximum fan speed using the control
panel.
5) The combustion values should reside in the range listed
in Table 31. If combustion values are not within this
range refer to Section 10.2 Gas Valve Adjustment
Procedure to correct this issue.
Table 19: Combustion Values
Natural Gas
Propane
CO
2
CO
CO
2
CO
Max.
Fire
8.5% - 9.0%
<100
9.5% -
10.0%
<100
PPM
PPM
Min.
Fire
8.0% - 8.5%
<100
9.0% - 9.5%
<100
PPM
PPM
6) When the combustion values are satisfied record these
values as Camus® requires these for warranty
purposes.
7) Remove the combustion measurement device and
switch the main power off to the boiler by placing the
toggle switch in the ‘OFF’ position.
8) Replace the flue temperature sensor back to its proper
location.
8.2
GAS VALVE ADJUSTMENT PROCEDURE
If adjustment of the gas valve is required use the following
procedure.
In order to perform adjustments to the gas valve the
DynaMax HS must be firing before proceeding.
DM 0200
– 250, 260
Figure 56: Venturi & Gas Valve Assembly
To adjust the high-fire setting
1) Press the
button
2) Select
Test
and press
3) Select
Forced Rate
and press
4) Select
Set High Fire
Locate the input adjustment screw on the side of the venturi.
Turn the screw 1/8 turn in 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.
Increase CO2
Decrease CO2
High Fire
Adjustment
Counter-
Clock Wise
Clockwise
Select
Stop Test
to return to normal operation or the boiler
will return to normal operation after 5 minutes
To adjust the low fire setting
1) Press the
button
2) Select
Test
and press
3) Select
Forced Rate
and press
4) Select
Set Low Fire
The DynaMax HS should respond immediately and fire at
minimum fan speed. This screw is covered with a cap, which
can be removed using a Torx 40 screwdriver. When the
correct combustion values are achieved replace the screw
cap back on to the gas valve.
Increase CO2
Decrease CO2
Low Fire
Adjustment
Clockwise
Counter-
Clock Wise
Select
Stop Test
to return to normal operation or the boiler
will return to normal operation after 5 minutes
Gas Valve
Venturi
Low-fire adjustment screw
(use Torx 40 for adjustment,
clockwise increases CO
2
)
High-fire adjustment screw
(use slotted screwdriver for
adjustment, counter-
clockwise increases CO
2
)
Summary of Contents for DynaMax DMH201
Page 2: ......
Page 70: ...62 PART 14 EXPLODED VIEW PARTS LIST DYNAMAX HS WALL HUNG 10 May be located outside cabinet...
Page 71: ...63 DYNAMAX HS FLOOR MOUNT 10 May be located outside cabinet...
Page 77: ...69 11 6 Front Strut 14 8037 X X Not shown in Exploded View Part Recommended spare parts...
Page 78: ...70 PART 15 ELECTRICAL DIAGRAMS 15 1 DM 200 299 INTERNAL WIRING DIAGRAM...
Page 79: ...71 15 2 DM 399 800 INTERNAL WIRING DIAGRAM...
Page 80: ...72...
