Raypak P-R185BL to P-R405BL Manuel d'utilisateur télécharger pdf (Page 37)

The Raypak Low NOx Pool Heaters are certified and

tested under the ANSI Z21.56.CSA 4.7 standards for

gas-fired pool heaters.

The heater should be installed to meet all local codes, the

latest editions of the National Fuel Gas Code Z223.1 and

the National Electrical Code, ANSI/NFPA 70.

OPERATION

On call for heat, the ignition system, consisting of an

electronic spark module, gas valve and pilot system, is

energized. Providing the pilot is proven blower will start

running, the main gas valve will open and the heater will

operate. When the operating control is satisfied the

heater will shut down.

START-UP PROCEDURES

1. Turn on power to the heater with gas supply off.

2. Check ignition as follows:

a. Set the thermostat or controller to call for heat.

b. Watch for continuous spark at the pilot burner.

c. Check the ignition spark operation. Time must

be within the lockout timing period (15 or 90

seconds).

d. Turn control down to end call for heat and wait 60

seconds on lockout models before beginning step

3. Turn on gas supply.

4. Set controller to call for heat.

5. System should start as follows:

a. Spark will turn on, pilot gas valve will open, and

the blower will begin running.

b. Heater will operate until call for heat is satisfied.

LOW NOx POOL HEATERS

Fig # 9361

BURNER ADJUSTMENT

This burner assembly does not require any primary air

adjustments.

BLOWER ADJUSTMENT

The Raypak RP2100 Low NOx pool heater is equipped

with a combustion air baffle mounted at the air intake to

the combustion air blower. The baffle has a slot that is

utilized to align with a square window cutout on the

shutter assembly.

The factory setting will be adequate for most field condi-

tions and adjustment will not normally be required.

However in some cases, field conditions including un-

usual gas characteristics may create a need for adjust-

ment to achieve optimum performance. When the com-

bustion air setting is proper, there will be some lifting of

the flames on some areas of the burner deck under cold-

start conditions. After about five minutes of operation, the

flames should settle down and blue tips should become

visible. Lifting of flames beyond the five minutes would

indicate too much combustion air. Loosening the knurled

screw and opening the air baffle (move to the left)

increases the amount of combustion air; closing it (move

to the right) decreases the amount of combustion air.

After a steady blue flame is attained, the knurled screw

must be re-tightened.

VISUAL INSPECTION

Flame can be observed through the slot opening above

the plenum. Flame color is blue and evenly spread on the

top surface of the burner. At least every three months a

visual inspection should be made of the burners. In case

flame lifting is observed on the burner, check gas pres-

sure in manifold. Gas pressure in manifold should be 3.9"

W.C.

ELECTRICAL

Be sure that electrical service to the boiler has proper

overload fuse or circuit breaker protection, wire size and

connections which comply with all applicable codes.

FLAME ROLL-OUT SAFETY SWITCH

Low NOx heaters are equipped with a cutoff device to

prevent flame roll-out in the event the heat exchanger

becomes blocked. This is a "manual reset" type roll-out

switch that must be reset by a service technician after

any over temperature conditions have been fixed. Exces-

sive restriction in the heat exchanger flue passage may

cause the switch to disable the heater.

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 51 52

Commentaires sur ces manuels

Pas de commentaire

Raypak P-R185BL to P-R405BL Manuel d'utilisateur Page 37

Commentaires sur ces manuels

Produits connexes et manuels pour Équipement pour l'eau Raypak P-R185BL to P-R405BL