Boiler Startup Procedure - Riello Array AR 3000 Installation And Operation Manual

COMMISSIONING

3.5 Boiler startup procedure

To start the boiler, do the following:
− Open the manual gas shut off valve (Fig. 1).
− Turn ON the main power switch (Fig. 19).
− Push all Module power switches to ON (Fig. 16).
− To help removing the air from the hydraulic circuit, the
De-airing function can be started for each module. When
activated, the "De-Air" sequence starts at every power ON
and consists of a controlled cycling of the pumps OFF and
ON that takes 14 minutes, during which no demand will
be served. If the water pressure is too low and the water
pressure switch is in error, the sequence will be suspended
until the pressure switch is ON again. This function can be
started through the Service display, connecting it to each
module using the connection cable mentioned at section
"Unpacking" pag. 6, switching the De_Air_Config param-
eter from 0 to 1. More details are available on the Control
System Manual.
− Check/Modify the parameter (*) Number of Units. It must
match the number of modules of the boiler (6 for AR 3000
and 8 for AR 4000). By default the number of expected
modules is 8. Follow the path below on the Service display:
Menu->Settings->Boiler Settings->Module Cascade Set-
tings->(*) Number of Units
− The Touchscreen Control Panel will switch on. The Splash/
Stand-by screen consists of the R logo:
Fig. 34 Touchscreen Control Panel Splash/Stand-by screen
By touching the logo, the Cascade screen will be accessed:
Settings
Fig. 35 Cascade Screen
− Pushing the Settings button, the Settings screen will show
up:
Fig. 36 Settings screen
− Date and Time can be adjusted through the screen below:
Fig. 37 Date & Time screen
− After the Date & Time setting, if an outdoor probe is con-
nected, the Reset Curve screen must be accessed (through
the Settings screen) to set the curve parameters:
Fig. 38 Reset Curve screen
22
Reset Curve
Date & Time
Language
Units
conversion