Innovation - Edge [i] Installation, Operation, Maintenance Manual
CHAPTER 4
– INITIAL START-UP
OMM-0143_A
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9/6/2019
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CONNECTING MULTIMETER TO MEASURE FLAME STRENGTH Instructions
1.
Refer to Figure 4.2.4 and remove the right-side panel from the unit to access the flame
detector.
2.
Disconnect the flame detector wire lead #135 from the detector and connect the multimeter
in series with the wire lead using alligator clips as shown in Figure 4.2.4.
3.
Ensure that the multimeter is set to the µA scale.
Figure 4.2.4: Flame Strength Set-Up Using Multimeter
– Rear View
IMPORTANT!
The unit is shipped from the factory set up for Natural Gas, as specified by the Style Number
on the Sales Order. Perform the Combustion Calibration procedure in Section 4.3.
4.2.5 Recommendations for Temperature Calibration
Carefully follow the procedures of Section
4.6
Temperature Control Calibration
, below, to
properly set up the temperature control for the unit. Ignoring this commissioning step may cause
water temperature faults, poor water temperature control, and rapid cycling of the unit.
4.2.6 Recommendations for WHM Operation
Installations with multiple Innovation units must operate in Water Heater Management (WHM)
mode (see Section 2.5.1 for instructions on installing the actuator-controlled ball valve).
Operation in WHM mode ensures that the system flow will be divided between at least 2 units as
demand increases. In addition, WHM ensures that all units receive equal run time and additional
water heaters are activated based on the “NEXT ON” firing rate setting.
In case of pre-heated DHW systems with multiple Innovation units, it is highly recommended to
lower the “NEXT ON” setting to 30 - 40% (Default = 50%), so that subsequent Water Heaters are
engaged sooner to provide more rapid response and divide the system flow over additional units.
In case of DHW pre-heat systems, the required temperature rise through an individual unit can be
much lower to ensure that flow per unit does not exceed 50 gal. (189 L) per minute at any time.
IGNITER-INJECTOR
FLAME
DETECTOR
CLIP LEAD
HARNESS
WIRE LEAD
#135
CLIP LEAD
EXHAUST MANIFOLD
INTAKE
MANIFOLD
MULTIMETER