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ELECTRIC BOILER Models: HYDRA09-E2401M-C HYDRA15-E2401M-C HYDRA18-E2401M-C HYDRA20-E2401M-C HYDRA24-E2401M-C INSTALLER / SERVICE TECHNICIAN: Caution: Do not tamper with the unit or its controls. INFORMATION THIS MANUAL Call a qualified service technician. INSTALLATION AND SERVICING OF THE UNIT AND KEEP THE DOCUMENT NEAR THE FURNACE FOR FUTURE REFERENCE.
SECTION 1 INSTALLATION 1.1) SAFETY LABELING AND SIGNS 1.4) INSTALLATION DANGER, WARNING AND CAUTION WARNING The words DANGER, WARNING and CAUTION are used to identify the levels of seriousness of certain hazards. It is important that you The installation of this unit must be performed understand their meaning.
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Freeze protection (when required) After having completed all piping connections, run water through the system and purge the air. The automatic vent WARNING should be in operation. Only propylene glycol may be used in this Note: Remove the panel on the right side of the unit and check hydronic heating system, to prevent freezing.
SECTION 2 OPERATION 2.1) ADJUSTMENTS AND START-UP 2.2) CHECKING THE CONTROLS Operational Controls CAUTION After having made sure that the boiler is completely filled with water and that there is no call for heat, turn on the power to the unit. The boiler must be filled with water and all air purged from the system, before turning on the By observing the temperature indicator, allow the water temperature...
SECTION 3 MAINTENANCE The property owner has the following responsibilities: It is recommended that the boiler be purged annually, in order to eliminate sediment and sludge that may have accumulated at the To maintain the area around the boiler clean at all times and bottom of the boiler and covered the heating elements.
TABLE 3 Power vs Outside Temperature (with modulation) Power (Kw) Temperature HYDRA09 HYDRA15 HYDRA18 HYDRA20 HYDRA24 0°C (32°F ) or less 0°C (32°F) or more 5°C (41°F) or more 10°C (50°F) or more Element De-Activation Sequence (with modulation) TABLE 4 Element De-Activated Outside Temperature 0°C (32°F) to 5°C (41°F)
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PARTS LIST HYDRA ITEM PART # DESCRIPTION Electric Boiler Assembly B20180 Insulation, left side B20197 Insulation B02293-20 Cabinet panel, left B20170 Electrical box, cover B20168-01 Electrical box B20217 Electrical box right side panel B20166 Electrical box left side panel B20117 Pressure relief valve, 30 PSI, 3/4"...
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