Midco J121-DS - Manual (Page 5)

5
Part 1 Installation
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Installation wiring to the burner must conform to local codes, or, in their absence in
the United States the National Electric Code ANSI/NFPA No. 70- latest edition; in
Canada, to CSA standard C22.1, "Canadian Electrical Code Part 1."
Use copper wires and provide disconnect and fuse protection for each
INCINOMITE installation. Refer to SPECIFICATIONS, page 2, for ampacity. Confirm
that the polarity is correct—hot wire to strip terminal L1, neutral L2 and that the
neutral line is not subject to induced low voltage (check L2 to ground) from other
equipment as that can affect the electronic control, causing it to malfunction.
The frame of the burner should be well grounded. A terminal is provided in the
control box for positive grounding.
CAUTION: In order for the automatic cooling system to function, power
must be maintained to burner strip terminal L1. Do not install any safety or
on-off controls in the circuit between the fused disconnect switch and strip
terminal L1. Optional remote control devices should be connected in place of,
or in addition to, the switch or timer as indicted in Figure 2 Wiring Diagram.
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Burners are suitable for use with NATURAL or PROPANE gas only.
If a standard NATURAL gas model is to be used with PROPANE gas, a
conversion kit is available, which contains a PROPANE Main Gas Port, a PROPANE
Ignitor Tee Orifice Fitting and a PROPANE label and conversion instructions.
As shipped, the Air Shutter is in the full open position and the Main Gas Input
Adjuster 5 to 6 turns from full closed. Ignitor regulator is factory set for
recommended outlet pressure of 3.5" W.C. suitable for most applications.
1.
Check the burner piping and valves for gas leaks by applying a weak liquid
soap solution to unions and joints with the gas supply on. Leakage will be
indicated by the appearance of soap bubbles. Locate and correct all gas leaks
before proceeding.
WARNING: DO NOT USE OPEN FLAME.
2. Confirm that the main gas Input Adjuster is 5 to 6 turns from full closed and that
the Blower Air Shutter is fully open.
3. Close the Main Manual Shut-Off Valve.
4. Purging the air from the gas supply line at this step will expedite the first
light-off.
CAUTION: Purge outside the building. Do not purge into the
incineration chamber.
5. Turn on the Fused Disconnect, Burner Switch or Timer. Let motor run long
enough to accomplish four air changes. Note that motor will continue to run
after Electronic Control lockout occurs.
6. Open the incinerator charging door. making sure any Door Open interlock is
temporarily bypassed.
7. Turn off the Burner Switch or Timer for at least 30 seconds to reset Electronic
Control (see Section XIII ELECTRONIC CONTROL SYSTEM). Open the
Main Manual Shut-Off Valve.
8. Turn on the Burner Switch or Timer. Burner Ignitor and main flame should
light during the 6 second trial for ignition after the motor reaches operating
speed. If the Ignitor and Main Flame fails to light during the 6 second trial for
ignition, it is probably due to air in ignitor gas line. Repeat from step 7. Then, if
necessary, refer to the Trouble Chart to isolate the problem.
WARNING: Repeated unsuccessful attempts to light will result in
accumulated gases in incineration chamber. To prevent these gases
Part 1
Installation
Continued
VI Electrical
VII Initial Start
Up/Adjustment