22
NOTICE
: In case of W R or TBT connection, remove the respective
jumpers.
9
24V room thermostat connection. The maximum load
admitted is 40 mA (max 1.5 VA)
NOTICE
:
In case of W - R and TBT connection, remove the
respective jumpers.
TBoll or Sboll connection
To connect water tank thermostat and water tank probe access the
boiler board as follows:
remove the casing a
gently lift and turn the control panel to free it from the side hooks.
remove the electrical parts cover as shown in the figure below
connect TBOLL and SBOLL to M4a as shown in the figure
grey grey
red red
black (alim.)
blue (sign.)
brown (-)
MOD
P.T.
1
3
1
X19
10
violet
violet
T.BOLL. S.BOLL.
-t°
M4a
9
In case of external indirect tank with sensor (CASE C -
see description on page 5) add a jumper on the TBOLL input
of M4a terminal board.
Remote control OT
In case the boiler is connected to a remote control OT, the boiler
display shows “Open Therm Connected”. The boiler control
functions are disabled and the remote control OT becomes the
master for the main heating zone setting and the domestic hot
water set point.
On the boiler front panel:
- The boiler status mode selection is disabled (the CH & DHW/
DHW/off mode is selectable only on the control OT ).
- The domestic hot water setting is disabled (the domestic hot
water set point is selectable only on the control OT ).
- In the INFO menu the domestic hot water set point is visible
instead of the domestic hot water flow rate.
- The central heating set point on the boiler display is related
only to a room thermostat request when there is not a CH
request from the control OT .
Please note that in the case of control OT is connected, all the
parameters type request and type activation related to the main
heating zone, are disabled.
18/05/2013
12:17
MENU
INFO
SET
107
°F
18.85 psi
FRI
PLANT
HOT WATER TEMPERATURE
STATE
Open Therm connected
MENU
OPENTHERM CONNECTED
STATE
SET
INFO
PLANT
HOT WATER TEMPERATURE
FRI
7.7.1
OT and Room Thermostat connection to
the boiler
The
Family PRO 42 KIS-IS
boilers have the ability to communicate
with OT (OpenTherm) thermostats such as the Riello RiCLOUD,
sold as an accessory.
When using the RiCLOUD thermostat it, or the WiFi box it is
communicating with, needs to be connected to OT-G terminal.
NOTICE in case of both use of OT and ON/OFF thermostat
: if the
RiCLOUD thermostat is to be used in OT (OpenTherm) and another
ON/OFF thermostat is to be used to activate a request for heat
using W an R terminals, set DO_AUX1 parameter to 1 (see section
“11.7.1 Boiler configuration”).
Low temperature
limit thermostat
Room thermostat -
power (24V)
Room thermostat -
heating
Opentherm
(OTBus)
RiCLOUD
OT
ZONE VALVE END SWITCH
(remove the bridge)
TBT
OT
SE
W
R
C
G
The central heating set point selected on the boiler display is
used when a heating request is made at the room thermostat
connection (W-R) if there is no request from the OT connection.
When a heating request is made from a RiCLOUD thermostat
at the OT connection the central heating set point set on the
RiCLOUD will be supplied to the heating loop. Priority is given
therefore to OT thermostat.
Presence of an outdoor temperature sensor connected to the
boiler will influence the CH set point and therefore the supply
temperature in the above situation.
7.8
Electrical supply
High voltage connections
The appliance works with alternating current at 120 V/60 Hz, and
is in compliance with requirements of National Electrical Code
and any additional national, state, or local code requirements
having jurisdiction.
Boiler must be electrically grounded in accordance with the
National Electrical Code, ANSI/NFPA No. 70-latest edition. In
Canada, installation must conform to CSA C22.1 Canadian
Electrical Code Part 1 and any local codes.
It is obligatory to make the connection with a safe ground/earth,
in compliance with current directives.
Summary of Contents for Family PRO 42 IS
Page 75: ...75 ...
