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3. The igniter will be located to the side of the heat exchanger to protect the device from
condensation during start-up.
4. The ignition control module shall include an LED that indicates six (6) individual diagnostic
flash codes.
5. An external viewing port shall be provided, permitting visual observation of burner operation.
G. Gas Train
1. The pool heater(s) shall have a firing/leak test valve and pressure test valve as required.
2. The pool heater(s) shall have dual-seated main gas valve.
3. Gas control trains shall have a redundant safety shut-off feature, main gas regulation, shut-off
cock and plugged pressure tapping to meet the requirements of ANSI Z21.10.3/CSA 4.3.
H. Pool Heater Control
1. The following safety controls shall be provided:
a. High limit control with manual reset
b. Flow switch, mounted and wired
c.
PSIG ASME pressure relief valve, piped by the installer to an approved drain
d. Temperature and pressure gauge (shipped loose)
2. The pool heater(s) shall be equipped with a PID modulating temperature controller with LCD
display that incorporates an adjustable energy-saving pump control relay and freeze
protection, and is factory mounted and wired to improve system efficiency; three water
sensors included (system sensor is loose)
I. Firing Mode: Provide electronic modulating control of the gas input to the pool heater.
J. Pool Heater Diagnostics
1. Provide external LED panel displaying the following pool heater status/faults:
a. Power on – Green
b. Call for heat – Amber
c. Burner firing – Blue
d. Service – Red
2. Provide internal circuit board indicating the following safety faults and diagnostic information
by a 2-line, 20-character LCD display:
a. System status
b. Condensate blockage
c. Manual reset high limit
d. Auto reset high limit (optional)
e. Low water cut-off (optional)
f. Blocked vent
g. Low gas pressure switch (optional)
h. High gas pressure switch (optional)
i. Controller alarm
j. Flow switch
k. Factory option
l. External interlock
m. Cold Water Start/Cold Water Run
n. Low air pressure
o. Flame in the combustion chamber w/o CFH
p. Ignition lock-out (flame failure)
q. Low hot surface igniter current
r. Low 24VAC
s. Internal ignition module fault
3. Provide ignition module indicating the following flash codes by LED signal and displayed on
LCD display:
a. 1 flash – low air pressure
b. 2 flashes – flame in the combustion chamber w/o CFH
c. 3 flashes – ignition lock-out (flame failure)
d. 4 flashes – low hot surface igniter current
e. 5 flashes – low 24VAC
f. 6 flashes – internal fault