Checking & Adjustment - RBI LCD Series Installation & Operation Manual

Lcd series finned copper gas boilers & water heaters
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Page 28
15. Set the operating control or thermostat to the
desired setting.
16. The pilot should automatically light. Do not try to
light the pilot by hand!
17. The burners should light with proper boiler/water
heater operation.
18. The pilot and manifold pressures should
match those listed in Table 19. To adjust the
manifold gas pressure see the "GAS PRESSURE
ADJUSTMENT" instructions in the "CHECKING
AND ADJUSTMENT" section.
Provide gas supply pressure at inlet to boiler gas train
as follows:
Minimum (in WC)
Maximum (in WC)
Measure pressure when the boiler is firing at full rate.
Low gas pressure could indicate undersized gas line or
insufficient gas supply.
Static and operating gas pressure required at the gas
valve inlet is between 6" W.C. and 14" W.C. for natural
gas and 11" W.C. and 14" W.C. for propane. If the gas
pressure is above this limit, a lock-up style regulator
suitable for dead end service such as an Equimeter or
Fisher must be installed to prevent increase (creep) of
gas pressure when the units are not operating. This
pressure regulator (supplied by others) may be installed
at the service entrance to each unit or a "master"
regulator sized to handle multiple units may be utilized.
Consult local gas utility or regulator manufacturer for
recommendations to meet specific job site requirements.
Table 19 - Pilot & Manifold Pressures
LCD-225, 300 &
1480 to 2300
inches W.C.
Low Fire*
1.3 ± 0.2
High Fire
2.5 ± 0.2
inches W.C.
Low Fire*
3.6 +/- 0.2
High Fire
8.0 +/- 0.2
*Optional
Instructions De Mise En Marche
1. ARRÊTEZ! Lisez les instructions de sécurité sur la
portion supérieure de cette étiquette.
2. Réglez le thermostat à la température la plus basse.
3. Coupez l'alimentation électrique de l'appareil.
4. Cet appareil est muni d'un dispositif d'allumage qui
allume automatiquement la veilleuse. Ne tentez pas
d'allumer la veilleuse manuellement.
5. Fermer la vanne manuelle d'arrêt d'alimintation de
gaz.
LCD INSTALLATION AND OPERATION INSTRUCTIONS
LP
Nat
11
6
14
14
LCD-400 to 1200
Natural Gas
mm W.C.
inches W.C.
mm W.C.
33 ± 5
1.6 ± 0.2
41 ± 5
64 ± 5
2.5 ± 0.2
64 ± 5
LP Gas
mm W.C.
inches W.C.
mm W.C.
91 ± 5
4.0 ± 0.2
102 ± 5
204 ± 5
204 ± 5
8.0 ± 0.2
6. Attendre cinq (5) minutes pour laisser échapper tout
le gaz. Reniflez tout autour de l'appareil, y compris
près du plancher, pour déceler une odeur de gaz.
Si vous sentez une odeur de gaz, ARRÊTEZ!
Passez à l'étape B des instructions de sécurité sur
la portion supérieure de cette étiquette. S'il n'y a
pas d'odeur de gaz, passez à l'étape suivante.
7. Ouver la vanne manuelle d'arrêt d'alimintation de
gaz.
8. Mettez l'appareil sous tension.
9. Réglez le thermostat à la température désirée.
10. Si l'appareil ne se met pas en marche, suivez les
instructions intitulées couper l'admission de gaz de
l'appareil et appelez un technicien qualifié ou le
fournisseur de gaz.
To Turn Off Gas To Appliance
1. Set the operating control or thermostat to its lowest
setting.
2. Turn off all electric power to the appliance if service
is to be performed.
3. Close the manual main valves.
COUPER L'ADMISSION DE GAZ DE L'APAREIL
1. Réglez le thermostat à la température la plus basse.
2. Coupez l'alimentation électrique de l'appareil s'il faut
procéder à l'entretien.
3. Fermer la vanne manuelle d'arrêt d'alimintation de
gaz.
CHECKING & ADJUSTMENT
1. With the burners in operation, close the manual
shutoff valve in the gas supply line. As soon as the
main burner flames go out, open the manual shutoff
valve. A normal ignition sequence should take place.
If the burners fail to light, the gas valves will close
and the system will go into a 5-minute lock out
period. The flame sense module will then make a
second ignition attempt. If the unit won't light ensure
that the gas piping is fully purged of air. Inspect the
ignition system and ensure that it is operating
properly.
2. To test the ignition safety shutoff device, close the
manual shutoff valve in the gas supply line. Within
5 seconds of main burner flame extinction, the main
gas valve solenoid should close with an audible
noise. After 10 seconds the module should lockout
and the trial for ignition end. After 5 minutes a
second trial for ignition should occur. Open the
manual shutoff valve in the gas supply line and reset
the ignition control system. A normal ignition
sequence should take place.
3. With the burners in operation, interrupt the power
to the control circuit by turning down the operator
or thermostat. The boiler/water heater should shut
down. Reset the operating control or thermostat. A
normal ignition sequence should follow.

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