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