QUINCY HYDRONIC TECHNOLOGY Riva ADVANCE COMBI, User Manual And Instructions

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8 RIVA ADVANCE COMBI USER MANUAL
2. Technical Information Cont.
ENERGY CAPACITY
Nominal heat input
(0/2000 ft)
MBH 1
25
.0
Nominal heat input
(2000/4500 ft)
MBH 1 1 2.5
Minimum heat input MBH
32.0
Maximum useful output
(0/2000 ft)
MBH 1 12.5
Maximum useful output
(2000/4500 ft)
MBH 107.0
Minimum useful output MBH
28.8
GAS PRESSURE AT BURNER
Gas Min Max Normal
Natural inwc 6.8 10.0 7 .0
Propane inwc 10.0 1
3
.0 1
1
.0
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
(0/2000 ft)
MBH 1 25 .0
Nominal heat flow rate
(2000/4500 ft)
MBH 11 2.5
Max Exhaust temperature °F 190
GAS FLOW RATE
Gas Min Max
Natural ft³/h 31.0 1 21.0
Propane lb/h
1.5
5.
7
CLEARANCE TO COMBUSTIBLES
Front in 18
Back in 0
Top in 10
Sides in 2
Bottom in 8
Flue pipe enclosed in 2
Flue pipe free air in 0
Hot water pipes in 1”
FLUE GAS FIGURES
(at nominal heat input)
Gas Min Max
CO
2
content with Natural gas
8.8
% 9.8%
CO
2
content with Propane gas 9.6 % 11.0%
O
2
content 4.3% 5.0%
FLUE GAS FIGURES
(at minimum heat input)
Gas Min Max
CO
2
content with Natural gas 8.8 % 9.8%
CO
2
content with Propane gas
9.6
% 11.0%
O
2
content 4.3% 5.0%
DOMESTIC HOT WATER
Maximum temperature °F 131
Minimum temperature °F 95
Maximum pressure psi 145
Minimum pressure psi 4.35
D.h.w. ΔT 25°C / 45°F gpm 4.5
D.h.w. ΔT 30°C / 54°F gpm 3.8
D.h.w. ΔT 35°C / 63°F gpm 3.2
D.h.w. ΔT 40°C / 72°F gpm 2.8