Pentair ETi 400 - Section 1. Operation Instructions

ETi 400 High Efficiency Pool and Spa Heater Installation and User’s Guide Rev. C 4/2017
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The heater operator controls are as follows:
POOL ON Press this button to control the heater operation by the pool temperature setting.
SPA ON Press this button to control the 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. Press the HEATER OFF button to switch the heater OFF.
2. Press ▲ TEMP or ▼ TEMP for 5 seconds. The display will ash once and change modes (°C to °F or vice versa).
3. Press the HEATER OFF button to switch the heater ON.
When either the ▲ TEMP or ▼ TEMP buttons are depressed, the digital display will indicate the temperature setting.
After ve seconds, the display will return to the actual pool/spa temperature.
In addition to the digital temperature display, there are ve indicator lights:
The POOL ON light indicates the pool water temperature is controlling the heater operation.
The SPA ON light indicates the spa water temperature is controlling the heater operation.
The HEATING light comes on and stays on when the heater’s burner chamber is ring. This light should be on whenever
the burner is on. This light blinks when the heater is calling for heat but not ring. 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 insufcient water ow to the heater. If the pump is operating, this
usually indicates that the lter and/or skimmers should be cleaned (some lters may require back-washing). If the light
remains on after the lter/skimmers have been serviced, the system should be checked by a qualied 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 page 13), and have a qualied service technician check the system.
Temperature
Up and Down
Digital Temperature
Display
System Operation
Indicator Lights
Dual Temperature
Controls
Heater "OFF"
Switch
OPERATOR CONTROL PANEL
Section 1: Operation Instructions
The ETi
®
400 Heater is shipped factory set at 70° F (35°
C) for pool mode and 95° F (21° C) for spa mode. Using
the up and down arrows, you can set the thermostats to a
minimum temperature of 65° F (18.3° C), or a maximum
of 104° F (40° C).
TEMPERATURE SETTING
Section 1: Operation Instructions