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13

  

Outdoor Crest Supplemental Manual

Table 2B

 Natural Gas Pipe Size Chart

The gas piping must be sized for the proper flow and length of 
pipe, to avoid excessive pressure drop.  Both the gas meter and 
the gas regulator must be properly sized for the total gas load.  

If gas pressure drops more than 1 inch w.c. (249 Pa) between 
maximum and minimum input rate, the meter, regulator, or gas 
line may be undersized or in need of service.  Perform the steps 
below when checking inlet gas supply:

1.  Turn the main power switch to the “OFF” position.

2.  Shut off gas supply at the manual gas valve in the gas 
 

piping to the appliance.  

3.  Remove the 1/8" pipe plug on the flange to the factory 
 

supplied gas shutoff valve and install a suitable 1/8" 

 

fitting (field supplied) for the manometer tubing.  Place the 

 

tubing of the manometer over the tap once the 1/8" 

 

fitting is installed as shown in FIG. 2-4.

4.  Slowly turn on the gas supply at the factory installed 
 

manual gas valve.

5.  Turn the power switch to the “ON” position.

6.  Adjust the temperature set point on the control panel of 
 

the SMART TOUCH control module to call for heat or 

 

utilize Service Mode.

7. Observe the gas pressure with the burner 
 

operating at 100% of rated input.  Without turning 

 

off the boiler, reduce the burner to the minimum input 

 

rate and observe the gas pressure with the burner at 

 

the minimum input rate.  Percent of burner input will be 

 

displayed on the Modulation Screen.

8.  Ensure inlet pressure is within specified range. 

 

 

Minimum and maximum gas supply pressures are 

 

specified in this section of the manual.

9.  If gas supply pressure is within normal range and no 
 

adjustments are needed, proceed on to Step 11.  

10.  If the gas pressure is out of range, contact the gas utility, 
 

gas supplier, qualified installer or service agency to 

 

determine the necessary steps to provide proper gas 

 

pressure to the control.

11.  Turn the power switch to the “OFF” position.

12.  Shut off the gas supply at the manual gas valve in the gas 
 

piping to the appliance.  

13.  Remove the manometer from the pressure tap on top of 
 

the gas valve.  Remove the 1/8" (3 mm) field supplied 

 

fitting and reinstall the pipe plug removed in Step 3.

DO NOT adjust or attempt to measure gas 
valve outlet pressure.   Attempting to alter 
or measure the gas valve outlet pressure 
could result in damage to the valve, causing 
potential severe personal injury, death, or 
substantial property damage.

WARNING

TABLE - 2B

Capacity of Schedule 40 Metallic Pipe in Cubic Feet of Natural Gas Per Hour

(based on .60 specific gravity, 0.30" w.c. pressure drop)

Pipe

Size

(Inches)

Length of Pipe in Straight Feet

10

20

30

40

50

60

70

80

90

100

125

150

175

200

1 1/4

1,060

726

583

499

442

400

368

343

322

304

269

244

224

209

1 1/2

1,580

1,090

873

747

662

600

552

514

482

455

403

366

336

313

2

3,050

2,090

1,680

1,440

1,280

1,160

1,060

989

928

877

777

704

648

602

2 1/2

4,860

3,340

2,680

2,290

2,030

1,840

1,690

1,580

1,480

1,400

1,240

1,120

1,030

960

3

8,580

5,900

4,740

4,050

3,590

3,260

3,000

2,790

2,610

2,470

2,190

1,980

1,820

1,700

4

17,500 12,000

9,660

8,270

7,330

6,640

6,110

5,680

5,330

5,040

4,460

4,050

3,720

3,460

Check inlet gas supply

2  

Gas connections 

(continued)

  

Содержание Crest OFL0751

Страница 1: ...Crest Installation and Operation Manual and the Crest Service Manual before installing Perform steps in the order given Failure to comply could result in severe personal injury death or substantial p...

Страница 2: ...EDING 3 THE OUTDOOR CREST HOW IT WORKS 4 5 RATINGS 6 1 DETERMINE BOILER LOCATION Installation Must Comply With 7 Before Locating the Boiler Check 7 Provide Clearances 8 Prevent Combustion Air Contamin...

Страница 3: ...xternal to the appliance Do not use this boiler if any part has been under water The possible damage to a flooded appliance can be extensive and present numerous safety hazards Any appliance that has...

Страница 4: ...ge junction box 15 Low gas pressure switch Monitors gas supply pressure to the boiler and shuts the boiler down in the event a low gas pressure condition occurs 16 High gas pressure switch Monitors ga...

Страница 5: ...Outdoor Crest How it works continued 2000549892 00 2000549892 00 1 8 31 3 2 DIR 2000549892 00 Front View DIR 2000549906 00 31 6 12 4 5 20 24 23 27 26 Rear View DIR 2000549910 00 19 9 10 17 29 22 18 13...

Страница 6: ...ited States Department of Energy 2 Net AHRI ratings are based on net installed radiation of sufficient quantity for the requirements of the building and nothing need be added for normal piping and pic...

Страница 7: ...oper operation and prevent a hazardous condition WARNING WARNING The unit must not be installed in an area that is enclosed by walls or a fence that will block free wind movement around the appliance...

Страница 8: ...onsible for water damage in connection with this appliance or any of its components If flooding is possible elevate the boiler sufficiently to prevent water from reaching the boiler Recommended servic...

Страница 9: ...mbly DIR 2000555428 00 DIR 2000 AIR INLET HOOD ASSEMBLY MAKE CERTAIN THE FACE OF THE WIRE SCREEN FRAME OF THE HOOD IS SET FLUSH WITH THE LEADING EDGE OF THE TOP OF THE UNIT PLACE THE DISPLAY COVER OVE...

Страница 10: ...mm minimum clearance to the air inlet To avoid a blocked air inlet or blocked flue condition keep the air inlet flue outlet and condensate trap clear of leaves debris etc Do not locate unit so that hi...

Страница 11: ...lator 4 Gas regulators should be installed the greater of either 20 inches or 10 pipe diameters from the nearest fitting elbow or valve to the outlet of the regulator 5 It is recommended that the gas...

Страница 12: ...oses of input adjustment WARNING WARNING NOTICE Check boiler rating plate to determine which fuel the boiler is set for Outdoor Crest boilers CAN NOT be field converted Failure to comply could result...

Страница 13: ...mum and maximum gas supply pressures are specified in this section of the manual 9 If gas supply pressure is within normal range and no adjustments are needed proceed on to Step 11 10 If the gas press...

Страница 14: ...r should ignite promptly Flame pattern should be stable Turn system off and allow burner to cool then cycle burner again to ensure proper ignition and flame characteristics Gas valve replacement The g...

Страница 15: ...up flush the entire heating system 2 Clean the entire heating system with an approved pre commissioning cleaner comparable to Sentinel X300 or X400 and Fernox F3 or DS40 in accordance with the manufac...

Страница 16: ...minate all system leaks Continual fresh makeup water will reduce boiler life Minerals can build up in the heat exchanger reducing heat transfer overheating the heat exchanger and causing heat exchange...

Страница 17: ...of water and all system components are correctly set for operation Verify the preparation procedures of Section 3 pages 15 18 have been completed Verify electrical connections are correct and securely...

Страница 18: ...ns On the Service Maintenance Screen place heater into Service Mode by selecting the START button then selecting Set Gas Valve 1 High FIG 3 2 WARNING WARNING Table 3B Flue Products Chart 8 Once the he...

Страница 19: ...to inspect the appliance and to replace any part of the control system and any gas control which has been under water OPERATING INSTRUCTIONS 1 STOP Read the safety information above on this label 2 Se...

Страница 20: ...NDENT AIR VALVE PRESS SWITCH BLOWER AIR VALVE HIGH LIMIT SWITCH M M DISCONNECT POWER BEFORE SERVICING BOILER PUMP DHW PUMP 5 0 A 3 15 A F2 LARGE GAS LARGE GAS SMALL GAS SMALL GAS USB INTERFACE X11 WIF...

Страница 21: ...TOR CONTACTOR DHW PUMP CONTACTOR HIGH VOLTAGE LOW VOLTAGE 120 VAC 1 5A EACH MAX OR AIR VALVE PRESSURE SWITCH OR BK OR AIR VALVE OR W BL OR R M 1 M 2 3 5 1 2 3 USB INTERFACE X11 R BL E GND LG CON BRD B...

Страница 22: ...5A EACH MAX X11 WIFI DONGLE X4 BOX DEPICTS OPTIONAL ITEMS BOX DEPICTS DUAL SENSOR SINGLE HOUSING HIGH VOLTAGE LOW VOLTAGE 120 VAC Notes 1 All wiring must be installed in accordance with local state p...

Страница 23: ...TURN SENSOR SYSTEM SUPPLY SENSOR 0 10V 0 10V TANK SENSOR OUTDOOR SENSOR 0 10V 0 10V BMS IN SYSTEM PUMP IN SHIELD A B CASCADE R R R O R O L B K B R B R Y BL HIGH LIMIT SWITCH R R X6 1 X6 2 X6 3 Y G R R...

Страница 24: ...D 1 5A EACH MAX X11 WIFI DONGLE X4 BOX DEPICTS OPTIONAL ITEMS BOX DEPICTS DUAL SENSOR SINGLE HOUSING HIGH VOLTAGE LOW VOLTAGE 120 VAC Notes 1 All wiring must be installed in accordance with local stat...

Страница 25: ...SENSOR OUTDOOR SENSOR 0 10V 0 10V BMS IN SYSTEM PUMP IN SHIELD A B CASCADE R R R O R O L B K B R B R Y BL HIGH LIMIT SWITCH R R X6 1 X6 2 X6 3 Y G R R P L B R L B R R B W R O W R O P W L B K B K B Y...

Страница 26: ...BOX DEPICTS OPTIONAL ITEMS BOX DEPICTS DUAL SENSOR SINGLE HOUSING HIGH VOLTAGE LOW VOLTAGE 120 VAC Notes 1 All wiring must be installed in accordance with local state provincial and national code req...

Страница 27: ...0 10V BMS IN SYSTEM PUMP IN SHIELD A B CASCADE R R R O R O L B K B R B R Y BL HIGH LIMIT SWITCH R R X6 1 X6 2 X6 3 Y G R R P L B R L B R R B W R O W R O P W L B K B K B Y J3 5 J3 4 J3 6 LWCO BOARD J3...

Страница 28: ...0 CN 500017507 reflects the addition of the 3501 model updates made to the Check Flame and Combustion Section on page 18 and the wiring and ladder diagrams Revision C PCP 3000029182 CN 500018624 refle...

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