Hatco IMPERIAL "S" - Manual (Page 25)

Form No. EBOOSTERM-0406 23
INSTALLATION
Figure 12. Plumbing Connections - Mini-Compact Models
Figure 13. Booster Heaters with optional Back Pressure Valve
Temperature/Pressure Gauge
3/4" Gate or
Ball Valve *
Temperature/Pressure Gauge
Discharge from T/P Relief Valve. Air gap
must comply with plumbing code.
Shock Absorber
for water hammer †
Outlet to Dishwasher
3/4" Union *
3/4" Union *
3/4" Union *
Drain Valve *
Floor Drain
Inlet
* not supplied with booster heater
NOTE: Centerline of booster “T” fitting must not
extend closer than 4" (102 mm) to the floor.
Blended Phosphate Water
Treatment System†
Figure 11. Plumbing Connections - Compact Series 24-57 kW
Temperature/Pressure Gauge
3/4" Gate or
Ball Valve *
Discharge from T/P Relief Valve. Air gap
must comply with plumbing code.
Shock Absorber for water hammer †
Temperature/Pressure Gauge
3/4" Union *
3/4" Union *
Outlet
Inlet
Drain Valve *
Floor Drain
* not supplied with booster heater
Blended Phosphate Water
Treatment System†
Water Inlet from primary
water heater
Pressure Reducing Valve
with Bypass 20 psi (138 kPa)
flow pressure maximum
Temperature/Pressure Relief Valve
150 psi (1034 kPa)/210°F (99°C)
† optional accessory
Outlet to
Dishwasher
Water Inlet from primary
water heater
† optional accessory
Temperature/Pressure
Pressure Relief Valve
150 psi (1034 kPa)/210°F (99°C)
Pressure Reducing Valve
with Bypass 20 psi (138 kPa)
flow pressure maximum
Temperature/Pressure Gauge
Back Pressure
Relief Valve
3/4" Gate or
Ball Valve *
Discharge from T/P Relief Valve. Air gap
must comply with plumbing code.
Shock Absorber for water hammer †
Temperature/Pressure Gauge
3/4" Union *
3/4" Union *
Drain Valve *
Floor Drain
Floor Drain
Inlet
Outlet
* not supplied with booster heater
Blended Phosphate Water
Treatment System†
Water Inlet from primary
water heater
† optional accessory
Pressure Reducing Valve with
Bypass 20 psi (138 kPa) flow
pressure maximum
Temperature/Pressure Relief Valve
150 psi (1034 kPa)/210°F (99°C)
Outlet to
Dishwasher