Power Flame Burner Information 5.0 rating
Burner Model Motor Firing Sequence
[1]
Standard UL Flame Safeguard Gas Train
Horsepower
Boiler Size
Gas and
Gas/#2 Oil
#2 Oil Gas
#2 Oil
Gas/#2 Oil
Voltage Gas
#2 Oil
Gas/#2 Oil
Gas #2 Oil Gas/#2 Oil Size Min. Pres. Max. Pres.
4FH-63 CR1-G(O)-10 CR1-O
1/3 1/3
120/60/1 On-Off On-Off RM7897A/UV R7184P/CC RM7897C/UV 1 4.9" w.c. 14.0" w.c.
4FH-78 CR1-G(O)-10 CR1-O
1/3 1/3
120/60/1 On-Off On-Off RM7897A/UV R7184P/CC RM7897C/UV 1 5.3" w.c. 14.0" w.c.
4FH-92 CR1-G(O)-10 CR1-O
1/3 1/2
120/60/1 On-Off On-Off RM7897A/UV R7184P/CC RM7897C/UV 1 5.7" w.c. 14.0" w.c.
4FH-107 CR1-G(O)-12 CR1-O
1/3 1/2
120/60/1 On-Off On-Off RM7897A/UV R7184P/CC RM7897C/UV 1 5.1" w.c. 14.0" w.c.
4FH-127 C2-G(O)-15 C2-OA
1/2 3/4
240/60/1
[2]
L-H-O L-H-O RM7897A/UV R7184P/CC RM7897C/UV
1
1/4
4.4" w.c. 14.0" w.c.
4FH-154 C2-G(O)-15 C2-OA
1/2 3/4
240/60/1
[2]
L-H-O L-H-O RM7897A/UV R7184P/CC RM7897C/UV
1
1/4
6.1" w.c. 14.0" w.c.
4FH-180 C2-G(O)-15 C2-OA
1/2 3/4
240/60/1
[2]
L-H-O L-H-O RM7897A/UV R7184P/CC RM7897C/UV
1
1/4
7.2" w.c. 14.0" w.c.
4FH-209 C2-G(O)-20B C2-OB
1
1
1/2
240/60/1 L-H-O L-H-O RM7897A/UV R7184P/CC RM7897C/UV
1
1/4
8.0" w.c. 14.0" w.c.
4FH-240 C2-G(O)-20B C2-OB
1
1
1/2
240/60/1 L-H-O L-H-O RM7897A/UV R7184P/CC RM7897C/UV 2 5.1" w.c. 14.0" w.c.
4FH-277 C2-G(O)-20B C2-OB
1
1
1/2
240/60/1 L-H-O L-H-O RM7897A/UV R7184P/CC RM7897C/UV 2 5.8" w.c. 14.0" w.c.
4FH-311 C3-G(O)-20 C3-O
1
1/2
2
3-phase
[3]
L-H-O L-H-O RM7897C/UV R7184P/CC RM7897C/UV 2 4.8" w.c. 14.0" w.c.
4FH-345 C3-G(O)-20 C3-O
1
1/2
2
3-phase
[3]
L-H-O L-H-O RM7897C/UV RM7897A/UV RM7897C/UV 2 5.7" w.c. 14.0" w.c.
4FH-360 C3-G(O)-20 C3-O
1
1/2
2
3-phase
[3]
L-H-O L-H-O RM7897C/UV RM7897A/UV RM7897C/UV 2 5.4" w.c. 14.0" w.c.
4FH-450 C3-G(O)-25B C3-OB 3 3
3-phase
[3]
L-H-O L-H-O RM7897C/UV RM7897A/UV RM7897C/UV
2 / 2
1/2[4]
8.2" w.c. 14.0" w.c.
4FH-563 C4-G(O)-30 C4-OB 5 5
3-phase
[3]
L-H-O L-H-O RM7897C/UV RM7897A/UV RM7897C/UV
2
1/2
7.2" w.c. 14.0" w.c.
4FH-675 C5-G(O)-30 C5-O
7
1/2
7
1/2
3-phase
[3]
Full Mod Full Mod RM7840L/UV RM7840L/UV RM7840L/UV
2
1/2
9.6" w.c. 14.0" w.c.
4FH-827 C5-G(O)-30 C5-O
7
1/2
7
1/2
3-phase
[3]
Full Mod Full Mod RM7840L/UV RM7840L/UV RM7840L/UV
2
1/2
10.4" w.c. 14.0" w.c.
4FH-993 C5-G(O)-30 C5-O
7
1/2
7
1/2
3-phase
[3]
Full Mod Full Mod RM7840L/UV RM7840L/UV RM7840L/UV 3 12.6" w.c. 28.0" w.c.
4FH-1157 C6-G(O)-30 C6-O 10 10
3-phase
[3]
Full Mod Full Mod RM7840L/UV RM7840L/UV RM7840L/UV 3 16.1" w.c. 28.0" w.c.
4FH-1323 C6-G(O)-30 C6-O 10 10
3-phase
[3]
Full Mod Full Mod RM7840L/UV RM7840L/UV RM7840L/UV 3 19.1" w.c. 28.0" w.c.
[1] Explanation of Firing Sequences:
Gas and Gas Sequence on Combination Gas/Oil Boilers
On-Off On-Off, fixed fire with slow opening gas valve, fixed air.
L-H-L Low fire start (not proven), high fire run, Lo-Hi-Off gas valve, two stage air control.
Full Mod Full modulation with proven low fire start.
Oil and Oil Sequence on Combination Gas/Oil Boilers
On-Off LFS Fixed air low fire start.
L-H-O Low fire start (not proven), high fire run, oil cylinder air control .
Full Mod Full modulation with proven low fire start.
[2] Voltage on gas burner model is 120/60/1.
[3] On 3-phase voltage, must specify 208, 230, or 460/60/3 on order.
[4] Model 4F-450 - Dual size gas trains: Leak test cock, main gas valve and auxiliary gas valve are indicated by the first number; gas regulator and main shutoff cock
are indicated by the second number.
SERIES 4FH- 50
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