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6

Midco 

International

 Inc.

8471 15

MADE

 in the 

USA

Part 1 Installation

13. Start and stop the burner several times to check its operation with the charging door open, and 
then with it closed. Remove any temporary Door Open
bypasses installed in Step 6.
14. Test operation of any auxiliary operating and/or limit controls.
15. Load incinerator and make trial run. Confi rm that the incineration chamber pressure stays within 
the range of 0 to minus 0.5″ W.C.
16.    

WARNING: When the incinerator is located inside a building and a draft control is 

used, check that there is no spillage of fl ue products from the draft control.

17. To shut off : Turn Burner Switch or Timer off  and close Main Manual Shut -Off  Valve

VII  Initial Start

Up/Adjustment 

Continued

120V

10

BL/W

  IMPORTANT: IF REPLACING USE ONLY

  3 AMP FUSE.

SCHEMATIC

LEGEND

S

BK

Figure 2A Wiring Diagram  (6455-57)

Summary of Contents for J121-DS

Page 1: ...witch do not use any phone in your building Immediately phone your gas supplier from another building Follow the gas supplier s instructions If you cannot reach your gas supplier call the re departmen...

Page 2: ...d air at sea level with zero draft over re De rate burner for altitudes over 2 000 feet by 4 for each 1000 feet of additional elevation 4 100 MBH 100 000 BTU Hr No 1 Waste Primarily dry material such...

Page 3: ...MIDCO Accessory Weatherhood will provide such protection CAUTION If the incinerator is of the down draft design make sure that a direct draft vent opening of approximately 10 square inches has been p...

Page 4: ...en pressure testing the supply piping the burner valve train must be protected If the test pressure is 0 5 PSIG or less closing the Main Manual Shut O Valve will su ce CAUTION If the test pressure is...

Page 5: ...t these gases from reaching an explosive level periodically purge the incineration chamber as described in Step 5 9 Observe the ignitor ame If it is weak screw in the Ignitor regulator adjustment to i...

Page 6: ...Load incinerator and make trial run Con rm that the incineration chamber pressure stays within the range of 0 to minus 0 5 W C 16 WARNING When the incinerator is located inside a building and a draft...

Page 7: ...Midco International Inc 7 8471 15 MADE in the USA Part 1 Installation VII Initial Start Up Adjustment Continued Figure 2B Wiring diagram 6455 58 Figure 3 Control Components SCHEMATIC LEGEND...

Page 8: ...is no debris in the Blast Tube that could short out the Spark or Flame Electrode Clean the Ignitor Gas Ori ce in Tee Ori ce Fitting see Figure 5 and check that the ori ce size is correct per Table 3 C...

Page 9: ...nt screw __________________________________________ The valve is a single function on o type with automatic closing on current failure Replace entire valve if valve fails to open when power is applied...

Page 10: ...uring the burner run and not re established within 6 seconds the Control will shut o the Main Automatic Gas Valve and LOCK OUT To reset the Control for restart turn o the Burner Switch or Timer for at...

Page 11: ...trial for ignition 1 Check for 24V between Electronic Control Valve terminal and strip terminal 10 No volt age Electronic Control or Fuse is defective 2 Check for 24V between strip terminals 7 and 10...

Page 12: ...ls L2 and GND TERM no volt age no back feed neutral OK B Follow test procedure as speci ed in Step II G 1 Connect DC microamp meter in series with sense wire and Electronic Control SENSE terminal With...

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