MHS Boilers REGENCY 4 MODULEK/169 - Components and Accessories; Boiler Components

COMPONENTS AND ACCESSORIES
1.5
Each boiler includes No. 2 ROBERTSHAW 24V gas valves.
1.5.2
BOILER COMPONENTS
4
1.5.1
GAS VALVES USED
- On-off switch
- Flue damper assembly with motor
- Twin solenoid gas valves with pressure regulators
- Multi-bar atmospheric gas burner in stainless steel with venturi
- Pilot burners with intermittent operation specific for ionisation
- Ionisation controls
- Ignition and ionisation electrodes
- Illuminated burner lockout reset push-buttons
- Control thermostat
- Overrun relay
- High limit thermostats
- Thermometer
- External flue hood
- Unassembled casing
- Contacts arrangement for external controls
- Option to operate in the “two stage” or in the “on/off” mode
- Option to select either burner to operate for minimum output
BOILER MODEL 152 169 186 203 220 237 255 272
No. of sections 9 10 11 12 13 14 15 16
Volume of combustion chamber m
3
0.087 0.096 0.106 0.115 0.125 0.135 0.144 0.154
Exchange surface m
2
12.2 13.9 15.6 17.3 19.0 20.7 22.4 24.1
Flue gas mass flow g/s 133 142 148 151 156 199 196 193
Flue temperature °C 110 112 115 117 121 110 115 119
Electrical supply 230 V - 50 Hz - 40W
Weight Kg 810 880 950 1,030 1,100 1,180 1,250 1,320