INSTALLATION
ELECTRICAL-ALL SIZES AND VOLTAGES
General
Hatco Electric Booster Water Heaters are available for operation on standard power systems. Check the identification decal for the proper power supply.
CAUTION
To assure proper performance Hatco Electric Booster Water Heaters are only to be connected to the same power supply as indicated on the specification decal. Units connected to an incorrect power supply voids the product warranty and may damage the equipment.
All internal electrical connections have been made at the factory. See CIRCUIT BREAKER AND FUSE SIZING CHART for supply wire size, fuse, breaker and conduit recommendations.
WARNING
To avoid personal injury or damage to equipment, the booster heater must be installed by qualified, trained installers. Installation must conform to all local electrical and plumbing codes. Check with your local plumbing and electrical inspectors for proper procedures and codes
WARNING
For proper electrical installation conforming to local electrical codes and the National Electrical Code (N.E.C.), consult a licensed electrical contractor.
WARNING
This product contains fiberglass, a product known to the state of California to cause cancer, birth defects or other reproductive harm.
WARNING
To avoid any injury or damage to the booster heater turn the power OFF at the disconnect switch/circuit breaker and allow to cool before performing any maintenance or adjustments.
Electrical Connections
1.Remove the front jacket cover screws, pull the cover forward and remove the cover.
NOTE: On Imperial models, there is a hinged access panel under the front jacket cover. Remove the bottom screw and lift the panel up to expose the fuse blocks.
On
On Compact models, the control box is under the front hinged jacket cover.
2.Locate the heater terminal or fuse block(s) inside the unit.
NOTE: See CIRCUIT BREAKER AND DISCONNECT SIZING CHART for proper connections and wire size.
3.Bring power leads from a properly sized disconnect switch or circuit breaker through the knockout provided on the unit (Figure 16), and connect to the terminal or fuse block(s). USE
COPPER WIRE ONLY. TIGHTEN CONNECTIONS PROPERLY TO A MINIMUM OF 40 INCH POUNDS.
NOTE: Due to the rigors of transportation all connections should be checked for tightness before heater is put into operation.
4.A grounding lug is provided near the supply terminals. An equipment grounding conductor must be properly connected to it.
CAUTION
Do not turn on power to booster heater until the tank has been filled with water and all air has been vented through the dishwasher rinse nozzle. The heating elements will burn out in seconds if operated when they are not immersed in water.
5. Replace and secure cover(s).
| Electrical Knockout | Electrical Knockout |
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| |
Imperial Series | Compact Series | |
| Figure 16. Electrical Knockout Locations |
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| 25 | Form No. |
