PVI Industries Boiler Installation & Maintenance Manual Download

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PV500-57 06/12

FIGURE 4

FIGURE 5

AMPS PER ELEMENT

KW-

VOLTAGE

AMPS PER

LEG

AMPS

TOTAL

AMPS PER

LEG

AMPS

TOTAL

*14 kW-600V

13 1/2

—

*7 kW-600V

—

18 kW-600V

—

9 kW-600V

—

4.5 kW-600V

4 1/2

—

18 kW-480V

—

9 kW-480V

—

4.5 kW-480V

5 1/2

—

18 kW-380V

—

9 kW-380V

—

4.5 kW-380V

—

kW-240V

44 44 25 75

kW-240V

22 22 13 38

4.5 kW-240V

kW-208V

50 50 29 87

kW-208V

25 25 15 44

4.5 kW-208V

12 1/2

TABLE 2

NOTE:

Elements are

usually

wired to contactors in groups, in order to maintain an amperage draw of close to, but not more

than, 50 amps per contactor.

*Applications for 600V may be a re-rated 480V element. Therefore, the 40W/in.

may be rated for 14 kW instead of

9 kW.

Summary of Contents for Boiler

Page 1: ...NFORMATION IN THIS MANUAL AND ALL OTHER PROVIDED INSTRUCTIONS LABELS AND MARKINGS BEFORE INSTALLING OPERATING OR SERVICING THIS UNIT TO THE INSTALLER After installation these instructions must be given to the equipment user or left near the appliance SPECIAL INSTRUCTIONS TO THE OWNER Retain this manual for future reference These instructions contain important information that will help you in main...

Page 2: ...4 3 Electrical Connections 4 4 Location 4 5 Installation 4 6 Service Clearances 4 7 Clearances to Combustible Surfaces 4 8 Electronic Low Water Cutoff 5 Optional Equipment 5 1 Shunt Trip Circuit Interrupter 5 2 Time Sequencer 5 3 Proportional Sequencer 6 Start up Procedures and Operation 7 Element Continuity Checks 8 Maintenance 9 Troubleshooting Guide Warranty forms ship separately with each prod...

Page 3: ... use this appliance if any part has been under water Immediately call a qualified service technician to inspect the unit and to replace any part of the control system all electric controls and all other items affecting safe appliance operation and which has been under water WARNING In an emergency shut the main electric supply to the appliance from a location safely away from the emergency Failure...

Page 4: ... 1 Electrical Entry 6 Manual Fused Disconnect 2 Temperature Limiting Device 7 Water Level Control LWCO Pump Control 3 Operating Control 8 Pressure Controls 4 Control Switch and Fuse 9 Inspection Fitting Handhole 5 Heating Element 10 Electronic LWCO ...

Page 5: ...afety Code for Controls and Safety Devices for Automatically Fired Boilers No CSD 1 All appliances conform to the latest edition of the ASME Boiler and Pressure Vessel Code Where required by the authority having jurisdiction the installation must comply with the Canadian Electric Code CAN CSA C22 1 Part 1 and or local codes 4 3 Electrical Connections Check rating plate on front for correct voltage...

Page 6: ...uirements Allow sufficient space for installing and servicing connections such as water electrical pump and other auxiliary equipment 4 7 Clearances to Combustible Surfaces The appliance must not be installed on a combustible floor or on a non combustible floor covering combustible material Clearance to unprotected combustible material must be 6 minimum at top sides and rear and 24 minimum in fron...

Page 7: ...ks are present tighten all four nuts uniformly on the element mounting flange in a crisscross pattern Tighten one nut then the nut on the diagonal from the first nut Next tighten the nut adjacent to the second nut and then the nut diagonal from the third nut Repeat this sequence until all nuts are tight Each nut should be tightened to 15 foot pounds of torque To avoid warping the flange do not ove...

Page 8: ...ting on the contactor points 8 On hot water supply boilers the manual reset thermostat is a temperature limiting safety device set at 210 F The operating thermostat is set at the factory at 120 F Adjustment may be made by using the TempTrac control to set the desired temperature 9 If an optional proportional sequencer is furnished adjust set point to desired water temperature or pressure All other...

Page 9: ...the OHM reading is not infinity the element should be replaced B C 40 60 60 C A 40 60 18 480 A B 26 78 B C 26 39 39 C A 26 39 18 380 A B 17 50 B C 17 25 25 C A 17 25 18 240 A B 7 20 B C 7 10 10 C A 7 10 18 208 A B 6 16 B C 6 8 8 C A 6 8 9 600 A B 80 240 B C 80 120 120 C A 80 120 9 480 A B 52 154 B C 52 77 77 C A 52 77 9 380 A B 33 98 B C 33 49 49 C A 33 49 9 240 A B 14 40 B C 14 20 20 C A 14 20 9 ...

Page 10: ...PV500 57 06 12 10 TYPICAL CURRENT MEASUREMENTS FIGURE 3 ...

Page 11: ...V 5 1 2 5 1 2 18 kW 380V 28 28 9 kW 380V 14 14 4 5 kW 380V 7 7 18 kW 240V 44 44 25 75 9 kW 240V 22 22 13 38 4 5 kW 240V 11 11 6 18 18 kW 208V 50 50 29 87 9 kW 208V 25 25 15 44 4 5 kW 208V 12 1 2 12 1 2 7 22 TABLE 2 NOTE Elements are usually wired to contactors in groups in order to maintain an amperage draw of close to but not more than 50 amps per contactor Applications for 600V may be a re rated...

Page 12: ...vice to the appliance when accessing the controls located inside the control cabinet The cabinet contains high voltage wiring and terminals If the electrical service is not turned off and these wires or terminals are touched a dangerous shock causing personal injury or loss of life could occur Close the control cabinet before restoring electrical service to the appliance 3 Inspect operating contro...

Page 13: ... monthly basis Discoloration is likely due to a loose connection at the point nearest discoloration Check contactors periodically and clean if necessary and repair or replace pitted points caused by foreign particles Check fuses periodically for continuity and replace if necessary with the same type and rating 8 Electric immersion INCOLOY sheath elements are wound at high wattage ratings and must ...

Page 14: ... feedwater treating company can recommend the better method depending upon circumstances in a particular installation Section VII of the ASME Code also contains information relating to laying up a boiler Extended shutdown of the boiler and restarting are as follows a Turn off all power b Enter boiler into dry storage c Tag power switch es that energy is off and tank is in storage condition d Remov...

Page 15: ...ive Hot water lines not insulated Add insulation it will protect against heat loss and save on cost of operation Power fuse s blown Check fuses for continuity Replace if blown If blown determine cause of break before replacing with same type fuse Contractor s not closing Check coil for continuity If defective replace Thermostat s or pressure controls not correctly set Check to assure proper thermo...

Page 16: ...PV500 57 06 12 16 PVI INDUSTRIES LLC 3209 Galvez Ave Fort Worth Texas 76111 Phone 1 800 433 5654 www pvi com ...

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