281 Issue 1 - Service Manual - BX3
5
1.5 BX320 Technical Information
AGA Approval No.: 8159
Energy Label Star Rating: 3.8
stars
154 MJ/m3/Year
Dimensions
Width
Height
Depth
Weight
Cabinet
420
850
775
57KG
Duct Connection
Standard
300mm or 350mm
Gas Type:
Natural Gas
Input (max)
92MJ/h
Output (max)
20kW
Burner Pressure (max)
0.82KPa
Gas Injector Orifice
Main Burner
2.25mm
Fan Motor
Model
Fasco
Model No.
808555NVA-A13
Watts
315 Watts
Amps
2.5 Amps
Capacitor
10 uF
Fan Impellor Size
255mm x 180mm (9” X7”)
Combustion Fan:
Model.
Fime GRO4100
Model No.
FL120042Y - 13
Watts.
60 Watts
Amps
0.55 Amps
Resistance
40.6
Ω
Pressure switch
115pa
Return Air Grille Size
Standard
XA
With Filter
0.36 m2
0.38
No Filter
0.25 m2
0.26
Airflow @ Total Static Pressure
50 Pa
75 Pa
100 Pa
125 Pa
Standard
640l/s
615l/s
585l/s
560l/s
XAir
685
655
630
600
Gas Valves:
VR8215S,T Honeywell
Main Burner:
.
In shot Burner
Ignition System
Tytronics HCDSI24-1DT control box
– Intermittent Sparking Pilot.
Heat Exchanger:
Aluminised Steel Tubes
Control Fuse:
2 Amp type 3AG. Slow Blow
Transformer:
Model T- B024702 240 – 24/12V, 50HZ, 1.75Amps .
Over Temperature Switch:
Supply Air Compartment: Texas Inst Klixon Oil 1747 L110 (opens at 110oC).
Flame Roll-Out Sensor (AFRO):
Supply Air Compartment: Texas Inst Klixon Oil 1747 L90 (opens at 90oC).
Electronic Heater Controller:
Tytronics HCDSI24-1DT
FEATURES:
Tytronics HCDSI24-1DT control box with LED diagnostic display, flame roll-out Klixon , direct main in-shot burners, induced
combustion airflow, circulation air fan has an optional 3 speeds for heating. Wiring terminal connection for thermostat / system
with heat.