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LDAP-IOM (01-22) 207733-A

Table 18.  Inputs and Capacities by Elevation in US

Elevation 

(Feet (Meters))

Unit Size

400

800

1200

Normal 

Input

Thermal 

Output 

Capacity

Minimum 

Input

Normal 

Input

Thermal 

Output 

Capacity

Minimum 

Input

Normal 

Input

Thermal 

Output 

Capacity

Minimum 

Input

BTUh

0–2000 

(0–610)

400,000

332,000

300,000

800,000

664,000

400,000

1,200,000

996,000

400,000

2001–3000 

(611–915)

376,000

312,080

282,000

752,000

624,160

376,000

1,128,000

936,240

376,000

3001–4000 

(916–1220)

368,000

305,440

276,000

736,000

610,880

368,000

1,104,000

916,320

368,000

4001–5000 

(1221–1525)

360,000

298,800

270,000

720,000

597,600

360,000

1,080,000

896,400

360,000

5001–6000 

(1526–1830)

352,000

292,160

264,000

704,000

584,320

352,000

1,056,000

876,480

352,000

6001–7000 

(1831–2135)

344,000

285,520

258,000

688,000

571,040

344,000

1,032,000

856,560

344,000

7001–8000 

(2136–2440)

336,000

278,880

252,000

672,000

557,760

336,000

1,008,000

836,640

336,000

8001–9000 

(2441–2745)

328,000

272,240

246,000

656,000

544,480

328,000

984,000

816,720

328,000

9001–10,000 

(2746–3045)

320,000

265,600

240,000

640,000

531,200

320,000

960,000

796,800

320,000

ADJUSTMENTS—CONTINUED

Measure and Adjust Manifold (Outlet) Gas Pressure—Continued

Measure and Adjust Manifold Gas Pressure—Elevation >2,000 Feet (>610 Meters)—Continued

MAINTENANCE

The unit is designed to operate with a minimum of maintenance . However, to ensure long life and satisfactory 

performance, routine service is recommended . When servicing, follow standard safety procedures and those specific 

instructions and warnings in this manual .

⚠ DANGER ⚠

 

• If you turn OFF the electrical power supply, turn OFF the gas.

 

• To prevent injury or death due to electrocution or contact with moving parts, lock disconnect 

switch open.

⚠ WARNING ⚠

 

• Eye protection is recommended when cleaning unit.

 

• When any service is completed, ensure that the unit is reassembled correctly so that no unsafe 

conditions are created.

 

• When re-lighting, always follow the lighting instructions on the heater.

⚠ CAUTION ⚠

 

• If any of the original wire supplied with the appliance must be replaced, it must be replaced with 

wiring material having a temperature rating of at least 105°C, except for limit control, flame rollout, 

and sensor lead wires which must be rated at 150°C.

 

• If replacement parts are required, use only factory-authorized parts.

Summary of Contents for LDAP

Page 1: ...ncy or the gas supplier Be sure to read and understand the installation operation and service instructions in this manual Do not store or use gasoline or other flammable vapors and liquids in the vici...

Page 2: ...Connections 17 Venting Requirements 18 Vent Pipe Type 19 Vent Pipe Size 19 Vent System Sealing 19 Condensation Mitigation 21 Vent System Support Requirements 21 Vent Terminal Type of Pipe and Vent Cap...

Page 3: ...Module 46 INSTALLATION RECORD TO BE COMPLETED BY INSTALLER 48 GENERAL INFORMATION This unit heater has been tested for capacity and efficiency so as to provide many years of safe and dependable comfo...

Page 4: ...shutting off the electrical supply Do not use this appliance if any part has been under water Immediately call a qualified service technician to inspect the appliance and replace any gas control that...

Page 5: ...n Standard for Aircraft Hangars in public garages in accordance with ANSI NFPA No 88A latest edition Standard for Parking Structures orinrepairgaragesinaccordancewithANSI NFPANo 88B latestedition Stan...

Page 6: ...Weights CombustionAirRequirements Acoustical Considerations and Venting Connections Heater Throw Figure 2 shows throw patterns for all unit sizes in heat mode at high speed Table 2 lists throw distanc...

Page 7: ...g zone as possible and this fact should be kept in mind when determining the mounting heights to be used However care should be exercised to avoid directing the discharged air directly on the room occ...

Page 8: ...View Front View Right Side View 17 1 8 435mm 30 762mm 14 7 8 378mm 9 1 8 232mm 15 1 4 384mm 34 3 8 873mm Hanger Location 1 2 13 Female Thread 28 1 8 714mm Air Destratification Fan Control 7 8 22mm 2...

Page 9: ...4 7 8 378mm 28 1 8 714mm Air Destratification FanControl 43 1 2 1105mm 46 1166mm 1 5 8 41mm 12 305mm 9 7 8 251mm 5 127mm 2 5 8 67mm 13 1 8 333mm 38 965mm 53 1346mm 13 3 4 349mm 1 1 4 32mm Line Voltage...

Page 10: ...pporting structure to be used has sufficient load carrying capacity to support the weight refer to Table 4 of the unit Table 4 Unit Weights Unit Size Pounds kg 400 375 170 800 805 365 1200 1195 542 Fi...

Page 11: ...tion within the equipment room or space Requirements for combustion air and ventilation air depend upon whether the unit is located in a confined or unconfined space A confined space is defined as a s...

Page 12: ...1 02 meters2 0 34 0 68 1 02 Outlet velocity heat high speed fpm 1521 m minute 464 Air volume destratification medium speed cfm 4650 9300 13 950 m3 minute 132 263 395 Outlet velocity destratification m...

Page 13: ...ents check with the local gas company or any other local agencies who might have requirements concerning this installation Before beginning make preparations for necessary supplies tools and manpower...

Page 14: ...e installer Verify that the supporting structure has sufficient load carrying capacity to support the weight refer to Weights section Prior to installation ensure that the method of support is in agre...

Page 15: ...p or plug the supply line Test pressures below 1 2 psi before testing close the manual valve on the heater GAS CONVERSION Gas conversion kits are available for changing from propane to natural gas or...

Page 16: ...specific gravity for natural gas at 1 050 BTU per cubic feet and a 1 6 specific gravity for propane at 2 550 BTU per cubic feet If the gas at the installation does not meet this specification consult...

Page 17: ...listed in Table 8 Table 8 Gas Connection Sizes Unit Size Natural Gas Propane Connection Inches 400 1 1 800 1200 1 1 4 1 1 4 Connection size for a standard unit not gas supply line size Figure 9 Gas Co...

Page 18: ...on of ECCO Heating Products Ltd SGDW series 3 6 ICC Industrial Chimney Co VIC 4 24 Industrial Combustion LLC ICH ICHL ICHLA ICHL1 and ICHL2 4 48 Jeremias Inc DWKL SWKL DWFL and SWFL 4 36 DWGV double w...

Page 19: ...75 of equivalent length of vent run is vertical double wall Type B vent pipe Vent Pipe Size Use only one diameter of vent pipe on an installation The minimum vent length is 3 feet 1 meter A minimum of...

Page 20: ...t using 3 4 inch long sheet metal screw Do not overtighten screw STEP 5 Before sealant can dry insert collar on vent cap as far as possible inside inner wall of double wall pipe Apply silicone sealant...

Page 21: ...t in severe personal injury or death and or property damage Consider local snow depth conditions The vent must be at least 6 inches 152 mm above the anticipated snow depth WARNING A different style ve...

Page 22: ...ters Forced air inlet within 10 feet 3 1 meters 3 0 9 above Combustion air inlet of another appliance 6 1 8 Mechanical air supply inlet to any building Canada 6 1 8 Any building opening door window or...

Page 23: ...ate on the heater for the supply voltage and current requirements A dedicated line voltage supply with a disconnect switch should be run directly from the main electrical panel to the heater All exter...

Page 24: ...ly wiring enters above and connects directly to the disconnect switch Figure 13 Built In Disconnect Switch Circuit Board Wiring The circuit board see Figure 14 is located in the control compartment of...

Page 25: ...scharge Air Connections NOTES After the unit is suspended mounted install the air directional louvers or optional nozzle Each option package includes illustrated installation instructions All Model LD...

Page 26: ...t Section Flue Wrapper Burner Orifice Burner Assembly Optional Relay Figure 15 Component Locations Typical Pressure Switches DANGER Safe operation of this unit requires proper venting flow NEVER bypas...

Page 27: ...2 35 to 1 85 1 50 to 0 95 0 60 0 78 Light blue Flue Collection Box Section Pressure Switch Unit Size Elevation Feet Meters Negative Pressure IN WC Label Color Startup Cold Equilibrium Hot Setpoint OFF...

Page 28: ...standard transformer in the control heater and a relay assembly that connects to the non control heater Option CL31 provides for control of two heaters If control of additional heaters is desired opt...

Page 29: ...OFF knob will not turn by hand do not try to repair it Call a qualified service technician Force or attempted repair may result in a fire or explosion Should overheating occur or the gas supply contr...

Page 30: ...l for gas including near floor a If you smell gas STOP and follow steps in DANGER message listed above or on heater operating label b If you do not smell gas proceed to step 6 6 Turn gas control knob...

Page 31: ...ized indefinitely as long as call for heat remains and either pressure switch is open Pressure switch s proven closed Control begins prepurge Flame is present at any time during prepurge Prepurge is r...

Page 32: ...motor on heat speed Limit switches re close or call for heat is not present Control runs venter motors through post purge period Control runs fan motor on heat speed through selected delay OFF period...

Page 33: ...lockout as long as fault remains Hard lockout automatically resets when hardware fault clears Power interruption Momentary interruption or voltage level is below minimum operating voltage line voltag...

Page 34: ...e regulated only by manufacturer provided equipment NEVER RESTRICT OR OTHERWISE ALTER THE SUPPLY OF COMBUSTION AIR TO ANY HEATER Heaters installed in a confined space must be supplied with air for com...

Page 35: ...e 800 has two gas valves and unit size 1200 has three gas valves Adjust both all gas valves on unit sizes 800 and 1200 For natural gas when the heater leaves the factory the combination gas valve is s...

Page 36: ...Feet 610 Meters Continued Figure 18 Gas Valves CAUTION DO NOT bottom out the gas valve regulator screw This can result in excessive overfire and heat exchanger failure due to unregulated manifold pre...

Page 37: ...ge low fire valve a Disconnect wire from HI terminal on gas valve b Remove cap from low fire regulator screw see Figure 18 and adjust pressure in accordance with Table 17 by turning regulator screw IN...

Page 38: ...000 265 600 240 000 640 000 531 200 320 000 960 000 796 800 320 000 ADJUSTMENTS CONTINUED Measure and Adjust Manifold Outlet Gas Pressure Continued Measure and Adjust Manifold Gas Pressure Elevation 2...

Page 39: ...appear sound Check for any damaged wiring and replace as necessary Maintenance Procedures Burner Maintenance NOTE Each heat section is equipped with a TCORE2 burner Visually inspect each burner assemb...

Page 40: ...r visible light Repeat for each heat exchanger section c If any light is observed replace heat exchanger 5 Re install burner assembly a Attach burner assembly 1 While holding venturi tube slide entire...

Page 41: ...see Figure 15 for location disconnect the wire and remove the screw and the flame sensor Clean flame sensor with an emery cloth before reinstalling Proper operation of the direct spark ignition syste...

Page 42: ...combination gas valve is the prime safety shutoff All gas supply lines must be free of dirt or scale before connecting to the unit to ensure positive closure NOTE Each heat section is equipped with a...

Page 43: ...ted on control panel 4 While holding venter motor remove six screws that secure venter motor mounting plate to venter housing Remove motor and wheel assembly from heater 5 Reassemble with replacement...

Page 44: ...heater For limit control locations see Figure 15 Figure 22 Replaceable Components Transformer Maintenance Use a voltmeter to verify 24V output from the transformer see Figure 22 If the transformer is...

Page 45: ...eliminated replace board 5 Lockout device interrupting control circuit by above causes Reset lockout by interrupting control at thermostat or main power 6 Heat section pressure switch es not closing...

Page 46: ...indicate normal operation and various abnormal conditions refer to Table 20 If the heater fails to operate properly check the LEDs to determine the cause and or to eliminate certain causes See Figure...

Page 47: ...place flame sesnsor Reposition flame sensor Is gas flowing Is the ignitor position correct in the gas flow Check gas pressure and supply voltage If either are low correct and repeat startup Reposition...

Page 48: ..._____________ Date of Installation ____________ Specific installation notes i e location amps gas pressure temperature voltage adjustments warranty etc ________________________________________________...

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