Electrical Connections - Riello Condexa PRO NA 75P Installation, Operation And Service Manual

INSTALLATION

2.17 Electrical connections

The Condexa PRO NA is manufactured fully wired and only needs
to be connected to the main power supply, the room/heat de-
mand thermostat and any other system components.
If an external electrical source is utilized, the boiler, when in-
stalled, must be electrically bonded to ground in accordance with
the requirements of the authority having jurisdiction or, in the
absence of such requirements, with the National Electrical Code,
ANSI/NFPA 70 and/or the Canadian Electrical Code Part 1, CSA C22.1,
Electrical Code.
9
CAUTION: The following is mandatory:
− The use of an omnipolar magnetothermic switch, line dis-
connecting switch in compliance with standards (contact
opening of at least 1/8" [3mm])
− Respect the connection L (line) - N (neutral). Keep the
ground conductor 13/16" (20 mm) longer than the power
supply conductors
− Refer to the wiring diagrams in this manual for all electric
operations.
9
CAUTION: The use of adaptors, multiple sockets and extensions
to power the appliance is not allowed
9
CAUTION: to connect external electric components, it is neces-
sary to use auxiliary relays and/or contactors to be fitted in a
dedicated external electrical panel
9
DANGER: Any work on the electrical system must be carried
out only by qualified personnel in compliance with all legal
provision and safety regulations in particular
9
WARNING: Secure the wires into dedicated wire ties in order
to always guarantee their correct positioning within the ap-
pliance.
9
WARNING: Electrical supply wires and control wires (room/heat
demand thermostat, external temperature sensors, etc.) must
be separate from one another and fitting inside independent
ribbed PVC sheaths up to the electrical panel.
9
CAUTION: the boiler must be supplied with 120V power supply.
9
CAUTION: Never shut the appliance off during normal opera-
tion (with the burner on) by shutting off the electrical power
supply using the On-Off key or an external switch. This could
cause the primary heat exchanger to overheat.
9
NOTE: To switch the boiler off (during the heating stage) use
a room/heat demand thermostat. The On-Off key can only
be utilized when the appliance is in stand-by or emergency
mode.
9
Label all wires prior to disconnection when servicing controls.
Wiring errors can cause improper and dangerous operation;
verify proper operation after servicing.
9
CAUTION: Before connecting any external electrical compo-
nents to the appliance (regulators, electric valves, climate
control probes, etc.), check to make sure that their electrical
characteristics are compatible with the available inputs and
outputs (voltage, absorption, acceleration current).
9
WARNING: Always check the proper operation of the "ground-
ing conductor" for the electrical system to which the appli-
ance will be connected.
9
NOTE: R shall bear no responsibility for any personal in-
juries or property damage caused by non-compliance with
wiring diagrams or the electrical system's incorrect/lacking
connection to the grounding system, or by non-compliance
with applicable Standards.
0
WARNING: It is strictly forbidden to use pipes of any kind to
ground the appliance.
0
WARNING: It is prohibited to lay power supply and room/heat
demand thermostat cables near hot surfaces (delivery pipes).
If they may come into contact with parts that have a tempera-
ture of over 122 F (49 C), use a suitable type of cable.
0
DANGER: It is prohibited to touch electric appliances with
damp/wet body parts or when your feet are wet.
0
WARNING: It is prohibited to leave the appliance exposed to
weather elements (rain, sun, wind, etc.).
0
WARNING: It is prohibited to pull, detach, or twist any electric
cables coming from the boiler even when the latter is discon-
nected from the main power supply.
Proceed as follows to access the control panel terminals:
− Remove the locking screw and the panel's front side
− Pull and slide the electrical panel box towards the outside
(1)
1
1
44