ideal 420 – 630kW Vanguard L Commercial Boiler User Guide

June 17, 2024
IDEAL

ideal 420 – 630kW Vanguard L Commercial Boiler

OVERVIEW

ideal-420-630kW-Vanguard-L-Commercia-Boiler-FIG-1

Features & Specification

Vanguard L boilers are designed with a large combustion chamber positioned in the lower part of the heat exchanger. The Vanguard L range ensures maximum heat transfer efficiency (up to 92.5% nett) and is capable of an impressive output to size ratio.

  • High efficiency (full and part load)
  • Minimal emissions
  • Reverse flame steel heat exchanger
  • Compact size
  • Easy to install and service
  • Natural gas, oil-fired or dual fuel
  • 6 bar pressure as standard
  • Available as boiler body onlyideal-420-630kW-Vanguard-L-Commercia-Boiler-FIG-2
BOILER DIM A DIM B DIM C
420 890 1542 1606
510 890 1542 1801
630 890 1542 2113

DIMENSIONS & CLEARANCES

The following minimum clearances must be maintained for operation and servicing:ideal-420-630kW-Vanguard-L-Commercia-Boiler-
FIG-3

TECHNICAL SPECIFICATIONS

MODEL   420 510 630
Maximum Heat Output kW 420 510 630
Minimum Heat Output kW 315 385 480
Boiler Water Content 1 398 462 565
Hydraulic Resistance at 11K mbar 31.1 45.8 69.5
Hydraulic Resistance at 20k mbar 9.4 13.8 21.0
Combustion Chamber Resistance mbar 29 43 55
Boiler DRY Weight Less Burner Unit kg 796 919 1047
Flue Size mm 250 250 300

Maximum Flow Temperature                                               oC 90| 90| 90
Maximum Burner Blast Tube Dia (T6)| mm| 220| 220| 220
GAS FIRING DATA|  |  |  |
Maximum Gas Rate| m3 / h| 42.7| 51.8| 64.0
Maximum Flue Gas Volume| m3 / sec| 0.25| 0.30| 0.37
Maximum Flue Gas Temperature at 9% CO2 OC                                    195| 195| 195
Seasonal Efficiency| %| 84.19| 84.20| 84.20
OIL FIRING DATA|  |  |  |
Maximum Oil Rate| l/h| 47.1| 57.2| 70.8
Maximum Flue Gas Volume| m3 / sec| 0.25| 0.30| 0.37
Maximum Flue Gas Temperature at 9% CO2 OC                                    195| 195| 195
Seasonal Efficiency| %| 84.19| 84.20| 84.20
MINIMUM FLOW RATES|  |  |  |
Normal Water Flow Rate Temperature Difference 11OC (20OF)|

l/s

|

9.12

|

11.07

|

13.68

Minimum Water Flow Rate Temperature Difference 35OC (63OF)|

l/s

|

5.02

|

6.09

|

7.52

CONVERSIONS|  |  |  |
1kW = 3412 Btu/h                 1m3 / h = 35.315 ft3/h|  |  |  |
1 litre = 0.22 gallons              1m3/sec = 2120 ft3/min|  |  |  |
1 mbar = 0.4 in.w.g.              1l/h = 0.220 gal/h|  |  |  |
1 kg = 2.2 lb                         1l/s = 13.198 gal/min|  |  |  |

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