Verona WALL HUNG GAS BOILER manual Technical Information Cont

2.Technical Information Cont.

ENERGY CAPACITY

Nominal heat input	MBH	122.8
(0/2000ft)
Nominal heat input	MBH	116.7
(2000/4500ft)
Minimum heat input	MBH	49.5
Maximum useful output	MBH	100.7
(0/2000ft)
Maximum useful output	MBH	95.9
(2000/4500ft)
Minimum useful output	MBH	37.0

GAS SUPPLY PRESSURE

Gas		Normal	Min	Max
Natural	inwc	7.0	3.5	10.5
Propane	inwc	11.0	8.0	12.0

GAS PRESSURE AT BURNER

Gas		Min	Max	Ignition
Natural	inwc	0.8	5.3	2.4
Propane	inwc	1.4	9.0	5.2

FLUE DESIGN

Minimum Venturi pressure	inwc	0.64
Flue pipe diameter
Coaxial	in	2.25/4
		3.25/5
Twin split pipes	in	3.25/3.25
Nominal heat flow rate	MBH	122.8
(0/2000ft)
Nominal heat flow rate	MBH	116.7
(2000/4500ft)
Min Exhaust temperature	°F	262
Max Exhaust temperature	°F	324

INJECTORS			No.		Size
Natural		14		130
Propane		14		89
GAS FLOW RATE
Gas		Min			Max
Natural	ft³/h	48.7		121.1
Propane	lb/h	2.23		5.55
ELECTRICAL
Voltage			V		120
Frequency			Hz		60
Current			A		< 1.6
Power consumption			W		176
FLUE GAS FIGURES
Gas		Min			Max
CO2		2.5%		7.2%
O2		16.5%		8.1%

RIVA HEAT ONLY MANUAL - REV A 10