Raypak HI DELTA 122-322 - Manual (Page 38)

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Follow-Up
• Safety checks must be recorded as performed.
• Turn unit on.
After main burner ignition:
• Check Manometer for proper reading.
• Cycle unit several times and recheck readings
• Re-analyze with unit running record or print
results.
• Remove all Manometers and replace hose,
remove jumper, replace all gas pressure caps.
• Check for gas leaks one more time.
POST START-UP CHECK
Check off steps as completed:
1. Heater and heat distribution units or storage tank
filled with water?
2. Automatic air vent, if used, open two full turns dur-
ing venting procedure?
3. Air purged from system?
4. Air purged from gas piping? Piping checked for
leaks?
5. Followed start-up procedure for proper start-up?
6. Is burner flame visible?
7. Test safety controls: If heater is equipped with a
low water cut-off or additional safety controls, test
for operation as outlined by manufacturer. Burner
should be operating and should go off when con-
trols are tested. When safety devices are restored,
burners should reignite after pre-purge time delay.
8. Test limit control: While burner is operating, move
indicator on high limit control below actual heater
water temperature. Burner should go off while
blower and circulator continue to operate. Raise
setting on limit control above heater water temper-
ature and burner should reignite after pre-purge
time delay.
9. Test ignition system safety device:
· Turn on manual gas valve. Turn power on.
· Set thermostat to call for heat.
· When the unit is in operation. Disconnect combus-
tion air blower pressure switch, burner should go
off immediately.
· Wait 5 minutes.
· Reconnect combustion air pressure switch, burner
should reignite after pre-purge time delay.
10. To restart system, follow lighting instructions in the
Operation section.
11. High limit control set to design temperature
requirements of system? For multiple zones: flow
adjusted as required in each zone?
12. Heater cycled with thermostat? Raise to highest
setting and verify heater goes through normal
start-up cycle. Reduce to lowest setting and verify
heater goes off.
13. Observed several operating cycles for proper
operation?
14. Set room thermostat or tankstat to desired temper-
ature?
15. Reviewed all instructions shipped with this heater
with owner or maintenance person, returned to
envelope and given to owner or placed in pocket
inside front panel on heater?
OPERATION
Operating Instructions
Lighting Instructions
1. STOP! Read the safety information first.
2. Set the thermostat to the lowest setting.
3. Turn off all electric power to the appliance.
4. This appliance is equipped with an ignition device
which automatically lights the burner. Do Not try to
light the burner by hand.
5. Remove upper front panel.
6. Turn on main manual gas valve.
7. Wait five (5) minutes to clear out any gas. Then
smell for gas, especially near the floor. If you then
smell gas. STOP! Follow the steps in the safety
information on the front cover. If you do not smell
gas, go to next step.