McDonnell & Miller 150E Series Скачать руководство пользователя страница 7

Страница: 7 / 16

Probes

Disconnect wires from probes.

Cover Plate

Brackets

Offset Connector

• Remove 6 screws (C) connecting brackets

and cover plate to probe housing.

• Remove offset connector from cover plate.

Only loosen upper nut to remove probe wire.

NOTE

Upper Nut

Содержание 150E Series

Страница 1: ...and the pressure must be 0 psi 0 bar before servicing To prevent electrical shock turn off the electrical power before making electrical connections This low water cut off must be installed in series...

Страница 2: ...anual Reset units will have to be pressed after water is restored to the middle probe NOTE The timing circuit will automatically reset if the water level is restored to the middle probe within 3 minut...

Страница 3: ...uit is broken which will deacti vate the burner relay When the water level is restored to the middle probe the burner relay will be activated for auto reset controls only SWITCH SETTINGS Values are 3...

Страница 4: ...on at Which the Low Water Cut Off Pump Controller Must be Installed INSTALLATION TOOLS NEEDED Two 2 pipe wrenches one 1 flatblade screw driver and pipe sealing compound IMPORTANT Follow the boiler man...

Страница 5: ...as determined in Step 1 Install blow down valves directly below the lower cross of the water equalizing pipe F STEP 2 Installing the Low Water Cut Off J H a Install a water column H not included with...

Страница 6: ...H BCOM BNC BNO PCOM PNC PNO N H 60 30 Secs 0 60 30 Secs 0 B Probe Wires B Control Box B B Disconnect probe wires red blue yellow from circuit board Remove 4 screws B connecting control box to bracket...

Страница 7: ...probes Cover Plate Brackets C C C C C C Offset Connector Remove 6 screws C connecting brackets and cover plate to probe housing Remove offset connector from cover plate 7 Only loosen upper nut to remo...

Страница 8: ...must be within 25 feet of Control Box NOTE Refer to and follow local codes and standards when selecting conduit and electrical fittings Wires from Probe Housing to Control Box must be in their own co...

Страница 9: ...cover plate Proceed to Electrical Wiring Section to complete wiring to Burner and Pump Valve circuits Wire connections at Probes 1 4 Ring Terminal and Control Panel 22 18 Female Spade must be made wit...

Страница 10: ...tallation Procedure a To remove cover use a flatblade screwdriver to loosen screws and remove the cover K b To reconnect cover slide over brackets and tighten screws using a flatblade screwdriver c Fo...

Страница 11: ...NC PNO N H f e d c b a Connect wire a from power supply to terminal H Connect wire b from neutral supply to terminal N Connect wire c from pump 1 control circuit to terminal PNO Connect wire d from pu...

Страница 12: ...ery 1 2 second The PCB is too hot and the unit has shut down The unit will automatically restart when the PCB has cooled sufficiently When using the TEST button the green light will flash once per sec...

Страница 13: ...C PNO N H 60 30 Secs 0 60 30 Secs 0 BCOM BNC BNO PCOM PNC PNO N H 0 60 30 Secs 0 Probe Connections Bottom Red Middle Yellow Top Blue 0 60 Second Adjustable Burner Off Delay 110Volt Input from Boiler C...

Страница 14: ...obes may be fouled with dirt scale or rust Remove head assembly to inspect probes The wiring connections for the pump may not be connected properly Check wiring at terminals Burner does not turn off w...

Страница 15: ...harge Failure to follow this caution could cause personal injury CAUTION MAINTENANCE SCHEDULE Blow down control as follows when boiler is in operation Daily if operating pressure is above 15 psi Weekl...

Страница 16: ...3500 N Spaulding Avenue Chicago Illinois 60618 tel 773 267 1600 fax 773 267 0991 www mcdonnellmiller com 2002 ITT Industries Inc Printed in U S A 2 02 210496...