Field Control Wiring; Room Thermostat Connection (Enable/Disable); Air Damper; Outdoor Temperature Sensor - Riello Array AR 800 Installation And Operation Manual

Table of Contents

Advertisement

INSTALLATION

4.14 Field Control Wiring

Each unit is fully wired from the factory with an internal operating
control system. No field control wiring is required for normal
operation.
However, the control system used with all Array boilers does
allow for some additional control and monitoring features. Wiring
connections for these features are made on the Input / Output (I/O)
terminal strips located behind the removable cover on the inner
side of the front door of the unit, as shown in Fig. 26.
NOTE: Any electrical load connected to the terminal strip (external
pumps, air damper, alarm) must be powered through a relay, not
included in the boiler, to be provided and wired by the installer.
CASCADE
AIR
Out
Supply
LINK
DAMPER
Door
Sensor
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
AIR
DHW 3-WAY CH
DAMPER/
ALARM
DHW Pump CH Pump
101 102
103
104 105 106 107 108 109 110 111 112
Fig. 26 I/O Terminal Strips
All field wiring is installed from the rear of the panel by routing the wires
through one of the openings provided on the sides of the cover panel
(see Fig. 27).
Fig. 27 Opening on the Cover Panel

4.14.1 Room Thermostat Connection (Enable/Disable)

The Room Thermostat (Enable/Disable) terminals (dry contacts)
come pre-wired closed (jumped) from the factory. For connecting a
room thermostat, the jumper must be removed and the thermostat
wires must be connected to terminals 11 and 12, as shown in Fig. 26.
DHW Tank
ROOM
0-10 V
System
BMS - RS485
+
+ -
Sensor
THERMOSTAT
Sensor
GND
MAIN /
CH PUMP
Opening for
wires

4.14.2 Air Damper

The Air Damper output comes disabled from the factory. When
connecting an air damper, the Par.126 (Programmable Output 2)
must be set to 10 and the damper wires must be connected to
terminals 101-102-103, as shown in Fig. 26.
The feedback of air damper must be connected to terminals 3-4.

4.14.3 Outdoor Temperature Sensor

If an outdoor temperature sensor is used, the outdoor probe
needs to be connected to terminals 5 and 6 as shown in Fig. 26.
The outdoor probe shall be installed on an outer wall, North or
North/East, away from windows, door, and ventilation grids.
Never install the probe in a position exposed to the sun.
The maximum length is 300' (100 meters), if the cable length
exceeds 32' (10 meters) a shielded cable is required and shall be
connected to chassis ground.
NOTE: All sensors and low voltage wiring shall not be routed in
direct contact or near high voltage power.

4.15 Venting

Array boilers must be vented and supplied with combustion and
ventilation air as described in this section.
Installation must comply with local requirements and with the
National Fuel Gas Code ANSI Z223.1. Array boilers vent and intake
air piping can be installed through the roof or through a sidewall.
Any of the vent/air piping methods covered in this manual can be
used. Do not attempt to install the boilers using any other means.
Suitable, UL approved, positive pressure, watertight vent materials
MUST be used for safety and UL certification.
Array AR 800 boiler can use the following material for venting:
Material
Standard
CPVC Schedule
ANSI/ASTM
40, 80
F441
Polypropylene
ULC S636
AL29-4C
UL 1738
stainless steel
For specific venting components (terminals, fittings), contact the
respective vent manufacturer.
9
DANGER: It is extremely important to follow these venting
instructions carefully. Failure to do so can cause severe
personal injury, death or substantial property damage.
9
DANGER: Use of cellular core PVC (ASTM F891), cellular core CPVC
or Radel® (polyphenosulfone) in venting systems is prohibited.
9
WARNING: Do not connect this gas appliance with any other
appliance unless approved by manufacturer. Failure to comply
with this WARNING could result in the accumulation of carbon
monoxide gas which can cause severe personal injury or death.
24
Maximum Flue
Approved
Temperature (°F)
Manufacturers
194
Centrotherm Eco
230
Systems (InnoFlue
SW)
300+, limited only
by rating of seals
7

Hide quick links:

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the Array AR 800 and is the answer not in the manual?

This manual is also suitable for:

20164509

Table of Contents

Save PDF