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14

Operations

Warnings & Check List

1. Installation or servicing of gas 

appliances and controls must 

only be performed by qualified 

personnel. After installation or 

servicing, test manual valve, 

operating valves, pressure regu

-

lation, and automatic shut-off 

valve for proper operation.

2.  Install in a suitable dry location. 

The machine must be located in 

an area properly protected from the weather.

3. Shut off gas and electricity before starting installa

-

tion or service. Turn back on to test or operate.

4.

DO NOT

 connect appliances before pressure 

testing the gas piping. Damage to gas valve may 

result. (6 - 14 w.c.i. or 1/2 psig)

5.

DO NOT

 insert any object other than suitable pipe 

or tubing in the inlet or outlet of the gas valve. 

Internal damage may occur and result in a 

hazardous condition.

6.

DO NOT

 grip gas valve body with a pipe wrench or 

vise. Damage may result causing gas leakage. 

Use inlet or outlet bosses or a special body 

wrench.

7.

DO NOT

 short the gas valve terminals.

8.

DO NOT

 allow any flame to impinge on the 

regulator vent tubing if supplied. It may clog and 

cause gas valve malfunction.

9.

DO NOT

 use the gas cock to adjust gas flow.

10. If main burner fails to shut off, turn off 

 

gas supply. 

11. Keep all combustible materials away from gas 

appliances. 

DO NOT

 allow lint or dust to collect in 

burner area.

12. Dials must only be operated by hand. Never use 

pliers, wrenches or other tools to turn dials.

13. After installation or servicing, test for leaks with a 

soap solution. With the main burner on, coat pipe 

and tubing joints, gaskets, etc. Bubbles indicate 

leaks.

14. If the machine is installed in an enclosed room, 

care should be taken to ensure that an adequate 

supply of air is available for combustion and venti

-

lation. (1 sq. inch per 1000 BTU)

FOR YOUR SAFETY READ BEFORE 

LIGHTING

If you do not follow these instructions exactly, a fire 

or explosion may result causing property damage, 

personal injury or loss of life.

A.    This appliance has a pilot which must be lighted 

by hand. When lighting the pilot, follow these 

instructions exactly.

B.      Before lighting, smell all around the appliance                       

area for gas. Be sure to smell next to the floor 

because some gas is heavier than air and will settle 

on the floor.

FOR YOUR SAFETY

“WHAT TO DO IF YOU SMELL GAS”

• Do not try to light any appliance

• Do not touch any electrical switch, do not 

use any phone in your building.

• Immediately call your gas supplier from a 

neighbor’s phone.Follow the gas supplier’s 

instructions.

• If you cannot reach your gas supplier, call 

the fire department.

C.   Use only your hand to push in or turn the gas 

control knob. Never use tools. If the knob will not 

push in or turn by hand, don’t try to repair it;  call a 

qualified service technician. Forced or attempted 

repair may result in a fire or explosion.
D.   Do not use this appliance if any part has been 

under water. Immediately call a qualified service 

technician to inspect the appliance and to replace 

any part of the control system and any gas control 

which has been under water.

Landa NG 3000 Operator’s Manual  8.913-942.0 - E

WARNING

    READ OPERATOR’S 

 MANUAL THOROUGHLY 

           PRIOR TO USE.

OPERATIONS

SAFET

Y

MAINTENANCE

Summary of Contents for NG-3000

Page 1: ...8 913 942 0 E 08 20 21 NG Hot Water Generator Operator s Manual Heater Module MODELS NG 3000 1 103 901 0 For the Landa Dealer nearest you consult our web page at www landa com...

Page 2: ...2 Landa NG 3000 Operator s Manual 8 913 942 0 E Machine Data Label...

Page 3: ...uctions 18 Maintenance Preventative Maintenance 19 Winterizing Procedure 19 High Limit Hot Water Thermostat 19 Heating Coils 19 Gas Valve Regulator 20 Electrode Adjustment 20 Pilot Burner Adjustment 2...

Page 4: ...ts in good working condition They are listed in this general order Winterizing Procedure High Limit Hot Water Thermostat Heating Coils Gas Valve Regulator Electrode Adjustment Pilot Burner Adjustment...

Page 5: ...g parts please specify model and serial number Use only identical replacement parts This machine is to be used only by trained operators Important Safety Information NOTE This heater module NG 3000 is...

Page 6: ...machine with wet hands or while standing in water Always disconnect power before servicing WARNING Flammable liquids can create fumes which can ignite causing property damage or severe injury AVERTISS...

Page 7: ...ult in injury from a whipping wand AVERTISSEMENT Agripper la lance de nettoyage avec les deux mains avant de commencer Le non respect de cette consigne pourrait mener des blessures caus es par le mouv...

Page 8: ...ent 22 Never expose a spark or flame where there may be unburned gas present CAUTION This product incorporates parts that produce sparks and therefore when located in a garage it should be in a room o...

Page 9: ...High Pressure Nozzle not included Electric Cold Water Pressure Washer not included Vent according to local codes not included Burner Switch Spray Gun not included High Pressure Hose Not included Use...

Page 10: ...officials regarding any specific code or regu lations governing the installation The installation must conform to local codes The gas pressure coming out of the regulator and going to the burner ring...

Page 11: ...uit Joint compounds pipe dope should be used sparingly on male threads only and be approved for all gases Propane Gas The following pipe and stack sizes are just recommen dations Always consult a loca...

Page 12: ...rter Input BTU Per Hour Draft Hood Flue Pipe Size 250 000 320 000 8 inch 320 000 410 000 9 inch NOTE If the flue pipe exceeds 10 ft in length or contains more than two elbows use next size larger pipe...

Page 13: ...nd Testing Gas Piping The building structure should not be weakened by installing the gas piping The piping should not be supported by other piping but should be firmly supported with gas hooks straps...

Page 14: ...a soap solution With the main burner on coat pipe and tubing joints gaskets etc Bubbles indicate leaks 14 If the machine is installed in an enclosed room care should be taken to ensure that an adequa...

Page 15: ...Is there ample water supply Have all flammable liquids or gases been removed from installation location Is there adequate gas supply for the BTU rating of the burner Is incoming gas supply pressure to...

Page 16: ...from Pressure Washer Inlet Connector Control Knob Red Ignitor STEP 5 Depress control knob all the way and hold it in After five 5 seconds depress the red ignitor until you hear a loud click Repeat 3...

Page 17: ...If painted surfaces are peeling or chipping use extreme caution as pressure washer may remove the loose paint from the surface Keep the spray nozzle a safe distance from the surface you plan to clean...

Page 18: ...4 Turn water off Drain water from coil to prevent freezing STEP 2 Rinse detergent with fresh water if attached pressure washer is able to apply detergent STEP 3 After water has cooled turn the attache...

Page 19: ...o the discharge coupling fitting and by injecting compressed air all water will be blown out of the system The use of a draft diverter will prevent the wind chill factor from freezing the coil High Li...

Page 20: ...ly to prevent blockage Propane Gas Optional Conversion Kit General Safety Precautions Have a qualified gas service person assist in any gas burner installation or service Few maintenance people or mec...

Page 21: ...nning time desired Burner Features Operated Automatic Valve This machine is equipped with a thermopile self powered combination gas control This system is designed as a constant burning pilot Lighting...

Page 22: ...follows B Thermopile Output Reading Check B Reading Switch contacts OPEN Main burner OFF If the minimum 250 millivolt reading is not obtainable readjust pilot for maximum millivolt output If millivol...

Page 23: ...Restricted pilot line or clogged pilot orifice Clean pilot tubing and orifices PILOT LIT BUT MAIN BURNER WON T COME ON Faulty wiring Test wiring Low pilot flame Check inlet pressure pilot orifice pos...

Page 24: ...24 Notes Landa NG 3000 Operator s Manual 8 913 942 0 E...

Page 25: ...25 Parts Parts LANDA NG 3000 Landa NG 3000 Operator s Manual 8 913 942 0 E...

Page 26: ...913 942 0 E 35 41 37 25 36 33 34 14 28 27 26 42 47 50 62 63 30 49 32 48 31 29 30 68 16 3 4 5 10 9 7 6 2 8 38 13 40 37 21 60 52 15 19 71 20 53 37 25 36 44 50 22 17 18 72 11 12 39 53 37 69 43 51 66 67 2...

Page 27: ...18 9 802 678 0 1 IGNITOR PIEZO 19 8 719 968 0 1 HOLDER WAND ZINC PLATED 20 9 802 807 0 9 WASHER 3 8 SAE FLAT 21 9 802 779 0 8 NUT 3 8 ESNA 22 9 800 031 0 1 LABEL PILOT LIGHT WARNING 23 8 706 236 0 1...

Page 28: ...EL MANUFACTURER S CLEANING SOLUTION 56 9 800 021 0 1 LABEL HOT WATER OUTLET 57 9 803 563 0 1 CONNECTOR 1 4 TUBE X 1 8 MPT 58 8 706 910 0 1 BUSHING 1 4 X 1 8 PIPE 59 9 802 682 0 1 TAB GROUND 60 9 802 7...

Page 29: ...29 Landa NG 3000 Operator s Manual 8 913 942 0 E Notes...

Page 30: ...8 913 942 0 Printed in U S A...

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