7. Triple power input
Triple power input offers three power input choices 800/1200/2000W for different
water heating in different seasons.
8
. Multi functional safety valve (MFV)
The MFV used with this unit is a unique safety valve. This has four functions.
1.
Pressure Release Valve (PRV)
2.
Non Return Valve (NRV)
3.
Vacuum Release Valve (VRV)
4.
Drain Device
9. Adjustable temperature knob with thermostat
Allows a manual setting for heating of water between ambient temperature to 75°C.
10.
External temperature meter
Generally indicates the heating of water and related temperature.
Safety devices
INALSA water heater is built - in with a lot of safety devices to ensure 100% safety at all times.
The operation of these device are described below.
a)
Thermostat
Capillary type thermostat; This device "cut-off" and "cut-in" the power supply between a
narrow band of temperature range. The indicator lamp provided with this circuit glow
and un-glow during cut-in and cut-off. This shows the proper working of the thermostat.
This device is provided with an adjustable knob to set the desired water temperature.
b)
Thermal cut out
A non- self resetting thermal cutout is provided as a safety device. When the thermostat
fails to function, this cut off the power.
The thermal cutout has to be manually reset before the heater can start operating again.
c)
Multi function Valve (MFV)
1.
This valve prevents the built-up of excessive pressure within the water heater by
releasing water from the drain.
2.
It also acts as a non - return valve to avoid the return of water from the water heater back to
supply, thereby prevent the dry heating.
3.
It acts as an expansion valve to allow the hot water expansion during heating which flows
back through drain.
4.
Customer can ensure proper working of the MFV by cleaning of salt deposits by lifting
the drain lever up. Customer can drain out the water from tank in case of prolonged non-
use of water heater.
4
Summary of Contents for PSG 15GL
Page 1: ...Instruction Manual...
