Hatco Imperial S Series Installation And Operating Manual page 16

INSTALLATION
Plumbing Connections
Pressure Gauge
3/4" Gate or
Ball Valve‡
Copper Water Inlet
from primary
water heater.
Temperature/
Pressure Gauge
3/4" Gate or
Ball Valve‡
Copper Water Inlet
from primary
water heater.
Blended Phosphate Water
Treatment System†
† Not supplied, but is available as an option/accessory.
‡ Not supplied with booster heater.
WARNING
Valves, gauges, and unions must be installed per diagram
to ensure proper operation, servicing, and warranty
coverage.
Pressure Reducing Valve
with High Pressure By-pass
(20 psi [138 kPa] flow
pressure maximum)
Temperature/
Blended Phosphate Water
Treatment System†
Discharge from T/P Valve.
Air gap must comply
with plumbing code.
Pressure Reducing Valve
with High Pressure By-pass
(20 psi [138 kPa] flow
pressure maximum)
Restrictor†
NOTE: Centerline of booster "T" fitting must
not extend closer than 102 mm (4") to the floor.
Temperature/Pressure
Relief Valve, 150 PSI/210°F
(1034 kPa/99°C)
Back
Pressure
Outlet
Relief Valve†
Floor Drain‡
Compact Series
Temperature/
Pressure Gauge
Back
Pressure
Relief Valve†
Flow
Mini-Compact Models
16
Temperature/
Pressure Gauge
Copper Outlet
to Dishwasher.
Shock Absorber
for water hammer.†
Drain Valve‡
Inlet
Shock Absorber
for water hammer.†
Temperature/Pressure
Relief Valve, 150 PSI/210°F
Inlet
(1034 kPa/99°C)
Discharge from T/P Valve.
Air gap must comply
with plumbing code.
Floor Drain‡
Drain Valve‡
Form No. EBOOSTERM-0321
English
Copper Outlet
to Dishwasher.