Lochinvar 401-751 Manual

1
PUMP RECOMMENDATION FOR
COPPER-FIN II 401-751 POOL HEATER
Pump Specifications
Part No. HorsePower Flanges Valute Material Flange Material Vendor Vendor Product Series Orientation
ARM3044PABTE 1/4 2" Bronze Bronze Armstrong LS45 Horizontal
Installation Specifications
Recommended for Based on
Pump Model Numbers Maximum GPM Installation Type
Copper-Fin II Pool Htr, CP(N,L) 401-751 55 GPM Single Pool Heater piped Primary/Secondary to Pool Loop
ARM3044PABTE Based on Based on
Minimum Pipe Diameter Connecting piping
2" Maximum 45 feet straight pipe with 6-Elbows, 2-Unions and 2-Ball Valves
IMPORTANT: Read the Copper-fin II 500-2070 Pool Installation and Operation Manual. If the planned
system exceeds the pump capacity in flow and/or head see “Pump Curves-All Pumps” for alternate pumps
and pump curves.
PUMP
Recommendation
PUMP-Rec-08 Rev C
OIL PORT
A
C
B D
10”
15-3/4”
12-1/2”
010 20 30 40 50 60 70
5
10
15
20
80 90 100 110
LS-45
TOTAL HEAD IN FEET
CAPACITY IN U.S. GALLONS PER MINUTE

2
PUMP RECOMMENDATION FOR
COPPER-FIN II 0991-1441 POOL HEATER
Pump Specifications
Part No. HorsePower Flanges Valute Material Flange Material Vendor Vendor Product Series Orientation
ARM3024PABTE 1/2 2-1/2" Brass Brass Armstrong 2B1050 Vertical
Installation Specifications
Recommended for Based on
Pump Model Numbers Maximum GPM Installation Type
Copper-Fin II Pool Htr, CP(N,L) 0991-1441 90 GPM Single Pool Heater piped Primary/Secondary to Pool Loop
ARM3024PABTE Based on Based on
Minimum Pipe Diameter Connecting piping
2-1/2" Maximum 45 feet straight pipe with 6-Elbows, 2-Unions and 2-Ball Valves
IMPORTANT: Read the Copper-fin II 500-2070 Pool Installation and Operation Manual. If the planned
system exceeds the pump capacity in flow and/or head see “Pump Curves-All Pumps” for alternate pumps
and pump curves.
PUMP
Recommendation
PUMP-Rec-08 Rev C
OIL PORT
A
C
B D
11-1/2”
19-1/2”
16”

3
PUMP RECOMMENDATION FOR
COPPER-FIN II 1801-2071 POOL HEATER
Pump Specifications
Part No. HorsePower Flanges Valute Material Flange Material Vendor Vendor Product Series Orientation
ARM3072PABTE 3/4 2-1/2" Bronze Bronze Armstrong 2B1050 Vertical
Installation Specifications
Recommended for Based on
Pump Model Numbers Maximum GPM Installation Type
Copper-fin Pool Htr, CP(N,L) 1801-2071 90 GPM Single Water Heater piped to a Single Storage Tank
ARM3072PAB Based on Based on
Minimum Pipe Diameter Connecting piping
2-1/2" Maximum 45 feet straight pipe with 6-Elbows, 2-Unions, 2-Ball Valves and 1-Cold Water Inlet Tee
IMPORTANT: Read the Copper-fin II 500-2070 Pool Installation and Operation Manual. If the planned system
exceeds the pump capacity in flow and/or head see “Pump Curves-All Pumps” for alternate pumps and pump
curves.
PUMP
Recommendation
PUMP-Rec-08 Rev C
OIL PORT
A
C
B D
11-1/2”
19-1/2”
16”