background image

Contact system with standard AG contacts
Single pole changeover switch (SPDT)

Alternating current:
AC-1:  

16, 400 V

AC-3:  

16A, 400 V

AC-15:  

10A, 230 V

Direct current:

DC-13:  

12W, 230 V

Contact system with gold contacts
Single pole changeover switch (SPDT)

Alternating current:

AC-1:  

10, 400 V

AC-3:  

6A, 400 V

AC-15:  

4A, 230 V

Direct current:

DC-13:  

12W, 230 V

When used acc. to UL or FM regulations

Use copper wire only
Tightening torque 20 lb. in.

CAUTION: The mounting panel must be plane to avoid damage of control

Voltage

AC           DC

FL

A

LR

A

Resist.

lead

Pilot
duty

240

8

48

8 A

3 A

120

16

96

16 A

240

12 W

Listed refrigeration
controller                 61B5

IC.PI.P10.N1.02- 520B3519 

 

 

©Danfoss A/S 01-2009 (AC-BNM/ mr)

Содержание WLF 9.5 HP

Страница 1: ...INSTRUCTION MANUAL WLF MODELS 9 5 HP TO 50 HP Lattner Boiler Company 1411 9th St SW Cedar Rapids IA 52404 T 800 345 1527 F 319 366 0770 E info lattner com www lattnerboiler com...

Страница 2: ...odulating Control Setting psi or F Operating Control Setting psi or F Modulating Control Differential Setting psi or F Operating Control Differential Setting psi or F Checked for proper operation of L...

Страница 3: ...e Boiler N Pressuretrols Controller Limit 0 Start Up of Standard Burners Section II Boiler Care A General B New Boiler Clean Out C Water Conditions D Water Treatments Chemicals E Water Softener F Foam...

Страница 4: ...ng Pipe I Aux LWCO Relay Replacement J Auxiliary Low Water Cut Off Probe Cleaning Section IV Troubleshooting A Normal Operation B Basic Service Tools C Before You Begin Lattner Boiler Limited Warranty...

Страница 5: ...sel with ASME Code required stay bolts It is symmetrical in layout and completely water backed assuring a balanced flow circulating pattern under all load conditions 5 Inner Casing A non metallic gas...

Страница 6: ...at actuated device a snap acting single pole single throw switch activates a pump contactor for ON OFF pump or solenoid valve operation 5 5 Auxiliary Low Water Cut Off An additional control separate f...

Страница 7: ...unted on the boiler This panel contains as a minimum the following components 1 Boiler ON OFF Switch Provided to interrupt control power to the 120 volt control circuit Does not disconnect the main po...

Страница 8: ...ydrostatic pressure test This test includes the integral steam and water trim piping and the trim valves An ASME P 6 piping hydro certificate can be provided for an additional cost 7 3 Burner Controls...

Страница 9: ...iler on rollers or on 2 pipes and roll the boiler into place If the unit is dragged attach chains to the base frame only CAUTION DO NOT lay the boiler on its side as the panels will not support the we...

Страница 10: ...regulator should be used to control the pressure 7 Walls Ceilings When passing through combustible walls or ceilings a stack thimble is required The thimble must be double wall stack 6 larger in diam...

Страница 11: ...pply Connect cold water supply pipe to aftercooler 11 Dead Boiler Drain Valve For draining the boiler when it is cool and not under pressure the entire drain line must be lower than the bottom of the...

Страница 12: ...as train piping This will void any warranty on the gas train assembly 7 Codes Standards All gas piping must be done in accordance with all applicable codes National Fuel Gas Code utility company requi...

Страница 13: ...alve If a solenoid water valve is used make sure the water supply is connected N Pressuretrols Controller Limit 1 Standard All Lattner steam boilers will have at least two pressure switches a controll...

Страница 14: ...anual reset on the limit switch must then be reset before the boiler will operate again 13 10 More Information For any additional information on the Honeywell Pressuretrols refer to the Honeywell prod...

Страница 15: ...s only Data may vary by location environment fuel gas pressure BTU content and more REFER TO BURNER NAMPLATE AND BURNER MANUAL FOR MORE SPECIFIC INSTRUCTIONS including low NOx burner instructions for...

Страница 16: ...back through the pump and into the boiler If this is not possible then the new boiler clean out procedure becomes imperative NOTE Never fill a hot empty boiler with cold water C Water Conditions 1 Ox...

Страница 17: ...10 2 000 ppm or 116 8 rains maximum 16 treatment Whenever a softener is used chemical treatment is still necessary for oxygen scavenging and controlling pH The water treatment chemicals keep these sub...

Страница 18: ...and brass washers If the brass washers are not in place the gasket will twist causing the glass to break 4 Proper Installation 17 External inspections are routine observations of the visible portions...

Страница 19: ...ler is being used If the boiler uses large quantities of untreated hard water the boiler may need to be inspected every 60 days If the boiler uses minimal quantities of make up water i e closed loop s...

Страница 20: ...wear or leaks 2 Test the McDonnell Miller and auxiliary low water cut off for proper operation By opening the blowdown valves with the boiler firing the burners must shut off during this test If the b...

Страница 21: ...vice organization if readings are high low or fluctuatina Hand Hole Plates Monthly Operator Visually check for leakage and replace gaskets as necessarv Firing Rate Control Annually Service Technician...

Страница 22: ...high spots on the hand hole plate with a file Note Do not leave the hand hole plate installedwithout the gasket 11 Install the gasket on the hand hole plate Make sure the gasket is pressed f irmly do...

Страница 23: ...careful not to break the sight glass when removing 7 Assemble the new sight glass as shown ALWAYS replace the gaskets and brass washers when installing a new sight glass 8 Slide the new glass into th...

Страница 24: ...H old the float submerged in a bucket of water and look for any air bubbles coming from the float 11 Always reassemble the McDonnell Miller operating mechanism to the body with a new gasket 12 Reinst...

Страница 25: ...crews on top o f the probe enclosure with a Phillips screwdriver 3 Remove the wire f rom the probe using a 5 16 wrench or a crescent wrench Only the wire on the probe is to be removed 4 Use a 13 16 sp...

Страница 26: ...the McDonnell Miller does not shut down the boiler the auxiliary low water cut off will shut down the boiler 10 If the boiler has optional controls refer to the wiring diagram B Basic Service Tools Th...

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Страница 29: ...damages for which the Purchaser may be liable to other persons or damages to property The remedies set forth in this Warranty are exclusive and the liability of Lattner with respect to any contract or...

Страница 30: ...current price whichever is lower less the applicable restocking charge SECURITY INTEREST For the purposes of securing payment the Company may issue a lien on the equipment following the invoice 30 day...

Страница 31: ...is pointing at five o clock about 1 8 turn from its final downward vertical position 2 Install the bottom gauge fitting the fitting with a drain valve until it is snug and the glass outlet is pointing...

Страница 32: ...tion and routine replacement schedules CLEANING Use commercial non abrasive glass cleaners to keep the glass clean Use diluted acids such as Hydrochloric muriatic acid when regular cleaners do not see...

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Страница 36: ...e At least two controls should be connected in series with the burner control circuit to provide safety redundancy protection should the boiler experience a low water condition Moreover at each annual...

Страница 37: ...157S 150 psi 10 5 kg cm2 Levels 150 psi 10 5 kg cm2 Levels 0 psi 0 kg cm2 150 psi 10 5 kg cm2 Approximate Distance Above Cast Line Differential Setting In mm In mm Pump Off 15 16 24 3 8 16 Pump On 9 1...

Страница 38: ...ures continued 150 psi 10 5 kg cm2 Approximate Distance Above Cast Line Differential Setting In mm In mm Pump Off 15 16 24 3 8 16 Pump On 9 16 14 Burner Off 0 0 N A Pump Off 17 16 37 3 4 19 Pump On 11...

Страница 39: ...mp 1 Off 13 8 41 3 4 19 Pump 1 On 5 8 16 Pump 2 Off 7 8 22 7 8 22 Pump 2 On 0 0 Model 159S 0 psi 0 kg cm2 150 psi 10 5 kg cm2 Pressure Settings and Differential Pressures continued PUMP 1 OFF PUMP 1 O...

Страница 40: ...the Low Water Cut Off STEP 1 Determine the Elevation at Which the Low Water Cut Off Pump Controller Must be Installed INSTALLATION TOOLS NEEDED Two 2 pipe wrenches one 1 flathead screw driver and pipe...

Страница 41: ...blow down valve G directly below the lower cross of the water equalizing pipe F Note 1 NPT tappings are provided with the exception of some 157 and 157S models which are 14 NPT b For Model 150S B and...

Страница 42: ...installation could cause damage to the boiler and or boiler system Failure to follow this warning could cause electrical shock an explosion and or a fire which could result in property damage persona...

Страница 43: ...LVE TERMINALS LOW WATER CUT OFF AND ALARM SWITCH ALARM CIRCUIT TERMINALS LOW WATER CUT OFF TERMINALS L 1 2 3 4 5 6 PUMP SWITCH PUMP CIRCUIT TERMINALS LOW WATER CUT OFF AND ALARM SWITCH ALARM CIRCUIT T...

Страница 44: ...1 2 4 5 6 LOAD LINE OR OR OR Combination Pump Control Low Water Cut Off and Alarm Alarm Circuit Only 1 Low Water Alarm 2 High Water Alarm 2 Pilot Switch To holding coil of a starter when the burner c...

Страница 45: ...or a boiler not being fired and or not at pressure Actual operating ranges are shown on page 2 in the Operation section If the burner comes on immediately turn the boiler off and make the necessary co...

Страница 46: ...only When the water level reaches approximately d 22mm above the horizontal cast line press the reset button N The burner should then come on d Continue watching the gauge glass J to see that the wate...

Страница 47: ...trol when the water in the boiler is at its normal level and the burner is on NOTE Refer to page 2 for switch operating points Open upper valve 1 Slowly open the lower valve 2 Water in the sight glass...

Страница 48: ...rential Service Direct Mode When the liquid rises to the HIGH electrode on terminal TB3 the control energizes LED1 will be lit The control remains energized until the liquid leaves the LOW electrode o...

Страница 49: ...EVEL DELAY DIFFERENTIAL FEEDWATER IN SEC 00 SECONDS Standard 01 60 SECONDS optional in 1 second increments MODE DIFFERENTIAL ONLY A DIRECT Standard B INVERSE SUPPLY VOLTAGE 1 120VAC Standard 2 240VAC...

Страница 50: ...and after a low water condition the relay will remain de energized until the pushbutton is pressed after the liquid rises to the level of the probe With no pushbutton installed control will be in Aut...

Страница 51: ...ffs Standard SENSITIVITY C 26K Standard contact factory for other sensitivity options SUPPLY VOLTAGE 1 120VAC Standard 2 240VAC 3 220VAC 4 24VAC 240VAC and 220VAC for operating control only not for li...

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Страница 62: ...d for the controls after nal installation Please note scale in KP units is indicative only For accurate setting or when using according to FM approval use additional pressure gauge to set the unit Ins...

Страница 63: ...h SPDT Alternating current AC 1 10 400 V AC 3 6A 400 V AC 15 4A 230 V Direct current DC 13 12W 230 V When used acc to UL or FM regulations Use copper wire only Tightening torque 20 lb in CAUTION The m...

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