To electrical
distribution panel
Union
Hot water
outlet to fixtures
Jacket access panel
Jacket access panel
Auxiliary catch
pan 2" (5.1 cm)
maximum
Drain valve
Electrical junction box (use
only copper conductors)
Union
To cold
water supply
Shut-off valve
Thermal expansion
tank (if required)
Temperature and
pressure-relief valve
(shown in different
location for clarity)
Relief valve
discharge line to
suitable open drain
6" ( 15.2 cm)
air gap
PVC Tee