Robur GAHP-W, Инструкция по установке, эксплуатации и обслуживанию, Страница: 47 / 68

Electrical connections
Ed. 2014-08
45
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sealing of the gas and water pipes.
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the gas supply pressure is within the rating limits indicated by the manufacturer.
•
the gas and electric lines are equipped with all safety devices required by current
regulations
•
the unit is grounded in accordance with the requirements of the local building authority
having jurisdiction or, in the absence of such requirements, with the latest edition of
the National Electrical Code, ANSI/NFPA 70, in the U.S. and with latest edition of CSA
C22.1 Canadian Electrical Code, Part 1, in Canada.
Do not operate the Robur GAHP-W units if any electrical or safety components
have been removed, by-passed or are not operatingdo not function correctly.
The start up of the Robur GAHP-W units can only be performed by a Robur
Corporation authorized service or installing Company. The guidelines provided by
the manufacturer must be followed.
The warranty of the GAHP-W units are efeffective only if validated by a Robur Corporation
authorized service or installing Company.
If you smell gas:
•
Do not try to light any appliance.
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Do not touch any electrical switch; do not use any phone in your building.
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Close the main shut off gas valve and electrically shut off the unit.
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Immediately call your gas supplier from a nearby phone. Follow the gas
supplier's
instructions.
•
If you cannot reach your gas supplier, call the fire department.
In case of fault with no smell of gas:
‐
Shut down the unit through the R-W-Y contacts on the electronic board or through the
DDC (if present). Do not switch off the unit through an electrical black out
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Wait till the shut down cycle of the unit is complete (10 minutes)
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Close the main shut off gas valve and electrically shut off the unit
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Do not try to fix the unit
The operating parameters are displayed on the 4-digit display of the electronic boad (S61)
as well as on the display of the Direct Digital Controller (DDC) if installed.
The display shows in sequence the following temperatures:
•
inlet cold water, outlet cold water, cold water ∆ T
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outlet hot water, inlet hot water, hot water ∆ T
Three different operation modes are available:
- Heating
mode/priority: Robur unit operates only if there is heating demand. The goal
is the heating water set-point and the unit stops only when it is satisfied. The cooling
water set-point is not considered. Once the shut-down cycle is over, the chilled water
pump stays on while the heating water pump stops.