Hatco IMPERIAL "S" User Manual
Form No. EBOOSTERM-0406
22
INSTALLATION
Figure 10. Plumbing Connections - Compact Series 4-18 kW
Figure 9. Plumbing Connections - Two Imperial Models Connected in Series
Temperature/Pressure Gauge
3/4" Gate or
Ball Valve
*
Discharge from T/P Relief Valve. Air gap
must comply with plumbing code.
must comply with plumbing code.
Shock Absorber for water hammer †
Temperature/Pressure Gauge
3/4" Union
*
3/4" Union
*
Drain Valve
*
Floor Drain
Inlet
Outlet
Temperature/Pressure Gauge
Temperature/Pressure Relief Valve
150 psi (1034 kPa)/210°F (99°C)
150 psi (1034 kPa)/210°F (99°C)
3/4" Gate or
Ball Valve
*
Temperature/Pressure
Pressure Relief Valve
150 psi (1034 kPa)/210°F (99°C)
Pressure Relief Valve
150 psi (1034 kPa)/210°F (99°C)
Discharge from T/P Relief Valve. Air gap
must comply with plumbing code.
must comply with plumbing code.
Shock Absorber for
water hammer †
water hammer †
Temperature/Pressure
Gauge
Gauge
NOTE: Centerline of booster “T” fitting must not
extend closer than 4" (102 mm) to the floor.
extend closer than 4" (102 mm) to the floor.
Water Inlet from primary
water heater
water heater
Inlet
Inlet
Outlet
Outlet
T/P Gauge
Outlet to
Dishwasher
Dishwasher
3/4" Union
*
3/4" Union
*
Drain Valve
*
3/4" Union
*
Drain Valve
*
Floor Drain
*
not supplied with booster heater
*
not supplied with booster heater
Blended Phosphate Water
Treatment System†
Treatment System†
Blended Phosphate Water
Treatment System†
Treatment System†
Figure 8. Plumbing Connections - Imperial “S” Series
Temperature/Pressure Gauge
Blended Phosphate Water
Treatment System†
Treatment System†
† optional accessory
3/4" Gate or
Ball Valve
*
Pressure Reducing Valve
with Bypass 20 psi (138 kPa)
flow pressure maximum
with Bypass 20 psi (138 kPa)
flow pressure maximum
Discharge from T/P Relief Valve. Air gap
must comply with plumbing code.
must comply with plumbing code.
Shock Absorber for water
hammer †
hammer †
Temperature/Pressure Gauge
NOTE: Centerline of booster “T” fitting must not
extend closer than 4" (102 mm) to the floor.
extend closer than 4" (102 mm) to the floor.
Water Inlet from primary
water heater
water heater
3/4" Union
*
Inlet
Outlet
3/4" Union
*
3/4" Union
*
Drain Valve
*
Floor Drain
*
not supplied with booster heater
Temperature/Pressure Pressure Relief Valve
150 psi (1034 kPa)/210°F (99°C)
150 psi (1034 kPa)/210°F (99°C)
Outlet to
Dishwasher
Dishwasher
Pressure Reducing Valve
with Bypass 20 psi
(138 kPa) flow
pressure maximum
with Bypass 20 psi
(138 kPa) flow
pressure maximum
3/4" Union
*
† optional accessory
Water Inlet from primary
water heater
water heater
† optional accessory
Pressure Reducing Valve with Bypass 20 psi
(138 kPa) flow pressure maximum
(138 kPa) flow pressure maximum
Temperature/Pressure Relief Valve
150 psi (1034 kPa)/210°F (99°C)
150 psi (1034 kPa)/210°F (99°C)
Outlet to
Dishwasher
Dishwasher