Up to 97% Effi ciency
Direct Vents up to 500 Equivalent Feet
Boiler Horsepower ►
11
16
21
28
Input Btu/h
399,000
565,000
750,000
1,000,000
Max Output Btu/h (ANSI Z21.13)*
371,000
525,000
697,500
930,000
Burner Operation
on-off
on-off
on-off
lo-hi-lo, 3:1 turndown
Maximum Operating Temperature - °F
210
210
210
210
Minimum Return Water Temperature - °F
no minimum no minimum no minimum
no minimum
Minimum Temperature Rise - °F
10
10
10
15
Maximum Water Flow - gpm
75
105
150
125
Minimum Water Flow - gpm
no minimum no minimum no minimum
no minimum
Minimum Flow Gas Pressure - inches W.C.
4.5
4.5
4.5
4.5
Maximum Static Gas Pressure - inches W.C.
14
14
14
14
Maximum Vent Length (6" dia.)
500 eq. ft.
500 eq. ft.
500 eq. ft.
390 eq. ft.
Maximum Combustion Air Length (6" dia.)
120 eq.ft.
120 eq.ft.
120 eq.ft.
120 eq.ft.
A Gas Connection - NPT
3/4
1
1
1-1/4
B Return Connection (cold inlet) - NPT
2
2
3
3
C Supply Connection (hot outlet) - NPT
2
2
3
3
D Blower Motor Horsepower/Amps @ 115V
1/3
6
1/3
6
1/2
8
3/4
11
E Overall Height
79
79
81
81
H Width
34-1/2
34-1/2
45
45
J Overall Depth
54
54
63
63
K Distance Between Skids
23
23
27
27
Approximate Shipping Weight - lbs
1560
1660
2190
2400
Approximate Operating Weight - lbs
2280
2330
3606
3628
Performance and Dimensions
VENTING REQUIREMENTS
Positive Pressure - Condensing (category IV)
Stainless Steel, Positive Pressure Vent Required
STANDARD ELECTRICAL REQUIREMENTS
Circulating Pump: 1/3 hp, 115V, 8 amp.
Blower Motor: Refer to chart.
400,000 to 1,000,000 Btu/h
11 to 28 Boiler Horsepower
Low NOx available
Output varies with changes in return (entering) boiler water temperature. Output shown is with maximum effi ciency.
Intra-tank circulating pump operates only during a fi ring cycle.
RIVERSIDE HYDRONICS, LLC ● FORT WORTH, TEXAS ● (800) 990-5918
34-92 11/06
Riverside
HYDRONICS
R
EPV Series
Condensing Water Boiler
MODE OF OPERATION
EPV is a high-effi ciency, down-fi red, vertical steel
fi retube boiler. With typical boiler system tempera-
tures, it will operate at no less tha