Operating The Control Panel; Heater Off - Pentair MASTERTEMP 125 Guide D'installation Et D'utilisation

SAFETY CONTROLS
OPERATION OF IGNITION MODULE
, (see
The Ignition Module
operates on 24VAC supplied by the transformer. The control utilizes
a microprocessor to continually and safely monitor, analyze, and
control the proper operation of the gas flame holder. The module
with the presence of the flame sensor, using flame rectification,
allows the heater to operate.

OPERATING THE CONTROL PANEL

The five operating switches are: (see Figure 32)
POOL ON Press this button to govern heater operation by the
pool temperature setting.
SPA ON
Press this button to govern heater operation by the
spa temperature setting.

HEATER OFF

Press this button to switch off the heater.
▲ TEMP
Press this button to raise the temperature setting.
▼ TEMP
Press this button to lower the temperature setting.
To toggle the display between degrees Centigrade (°C) and degrees
Fahrenheit (°F):
1. Turn the Operating Control OFF.
2. Press ▲ TEMP or ▼ TEMP for 5 seconds. The display will flash once and change modes (°C to °F or vice versa).
3. Turn the Operating Control ON.
When either the ▲ TEMP or ▼ TEMP buttons are depressed, the digital display will indicate the temperature setting.
After five seconds, the display will return to the actual pool/spa temperature.
In addition to the digital temperature display, there are five indicator lights:
The POOL ON light indicates that the pool water temperature is governing operation of the heater.
The SPA ON light indicates that the spa water temperature is governing operation of the heater.
The HEATING light comes on and stays on when the burner is firing. This light should be on whenever the burner is
on. It blinks when the heater is calling for heat but not firing. If this light is on but the burner fails to come on, one of the
"service" lights should come on, indicating a fault in the system.
The SERVICE SYSTEM light indicates that there is insufficient water flow to the heater. If the pump is operating, this
usually indicates that the filter and/or skimmers should be cleaned (some filters may require back-washing). If the light
remains on after the filter/skimmers have been serviced, the system should be checked by a qualified service technician.
The SERVICE HEATER light indicates a fault in the heater or its controls. If this light comes on, shut down the heater
(See "TO TURN OFF GAS TO THE APPLIANCE" on
Risk of explosion or fire causing burns or death if safety interlocks are disabled. DO NOT attempt to operate heater when
SERVICE HEATER light is on or if blower or burner will not start. Instead, follow instructions under "To Switch Off Gas to the
Appliance," and call a qualified service technician to repair unit.
Rev. C 3/2019
(continued)
Figure 31),
is microprocessor based and
WARNING
Section 4. Operation Instructions
Flame Current
Check Point
System Operation
Indicator Lights
33), and have a qualified service technician check the system.
page
MASTERTEMP 125 Pool and Spa Heater Installation and User's Guide
Diagnostic LED
1 Flash
- Air Flow Fault
2 Flashes - Flame No Call for Heat
3 Flashes - Ignition Lockout
Figure 31.
Temperature Digital Temperature
Up and Down Display
Dual Temperature Heater "OFF"
Controls Switch
Figure 32.
35