Pipe connections
Connection, cold water, blue (28 mm)
XL3
Connection, hot water, red (22 mm)
XL4
Connection, supply line from HP, white (22 mm)
XL36
HVAC components
Submerged tube for temperature sensor, hot
water display
UA1
Submerged tube for temperature sensor, hot
water control
UA2
Miscellaneous
Rating plate
PF1
Serial number plate
PF3
Designations in component locations according to
standard IEC 81346-1 and 81346-2.
*or another external heat source
7
Chapter 3 |
The water heater design
VPD 150, 300