Polaris PC 130-34 2NV Benutzerhandbuch

occurrence of igniter failure due to excessive condensate.
Important: A mixing valve (provided) must be installed in

the hot water outlet to reduce the risk of scald injury when

setting the thermostat in excess of 120°F (48.9°C).
Many home heating systems

used with this water heater are

designed for temperatures higher

than 130°F (54.4°C). Refer to

the manufacturer’s instruction

manuals supplied with this type

of equipment for recommended

temperature settings.
Important: Adjusting the

thermostat past the 120°F

(48.9°C) setting on the

temperature dial (see figure 22) will increase the risk of scald

injury. Hot water can produce first degree burns within:

(48.9°C)*

(54.4°C)*

(60°C)*

(48.9°C)*

(54.4°C)*

(60°C)*

* Temperatures shown are approximates

and may vary.

(48.9

(54.4

(60

Figure 22:

Temperature Dial

Stacking

Stacking occurs when a series of short draws of hot water

(3 gallons [11.3 liters] or less) are taken from the water

heater tank. This causes increased cycling of the burner

and can result in increased water temperatures at the hot

water outlet. A mixing valve must be installed in the hot

water supply line to reduce the risk of scald injury.

Water Temperature Regulation

The thermostat is adjusted to its lowest temperature setting

when it is shipped from the factory. Water temperature

can be regulated by moving the temperature dial to the

preferred setting. The preferred starting point is 130°F

(54.4°C); however, in some instances, setting the water

heater higher than 130°F (54.4°C) can reduce the

Water temperature over 125°F (51.6°C) can cause

severe burns instantly or death from scalds.
Children, disabled and elderly are at highest risk

of being scalded.
See instruction manual before setting

temperature at water heater.
Feel water before bathing or showering.
Temperature limiting valves are available.

Water

Temperature

°F (°C)

Time for 1st

Degree Burn

(Less Severe Burns)

Time for Permanent Burns

2nd & 3rd Degree

(Most Severe Burns)

110 (43.3)
116 (46.7)

122 (50)
131 (55)
140 (60)

(U.S. Government Memorandum, C.P.S.C., Peter L. Armstrong, Sept. 15,1978)

(normal shower temp.)

(pain threshold)

35 minutes

45 minutes

116 (46.7)

1 minute

5 minutes

5 seconds

25 seconds

2 seconds

5 seconds

1 second

2 seconds

149 (65)
154 (67.8)

instantaneous

1 second

Table 4

Emergency Shut Down

Important: If overheating occurs or the gas supply fails to

shut off, close the manual gas supply valve. Turn off the

electrical supply to the unit and close the cold water supply

valve. Do not operate the water heater again until it has been

thoroughly checked by an authorized service technician.