5
500-1825
2000-2450
2800-5000
Ignition Systems
System 4
N/A
N/A
O
System 9
S
N/A
N/A
System 16
O
O
O
System 18
N/A
S
S
Firing Mode
On/Off
S
S
S
Motorized On/Off (FM & Minnesota Code only)
N/A
N/A
O
Gas Trains
Manual Valve
S
S
S
Redundant Safety Valve
S
S
S
Main Gas Regulator
S
S
S
Manual Firing Valve
O
O
O
Pilot Gas Regulator
S
S
S
Leak Test Valve
O
O
O
High Gas Pressure Switch
O
O
S
Low Gas Pressure Switch
O
O
O
Normally Open Vent Valve
O
O
O
Control Components
100% Shutdown on Flame Failure
S
S
S
100% Lockout Ignition Control
SP
SP
SP
Manual Reset High Limit
S
S
S
Automatic Reset High Limit
O
O
S
Water Flow Switch
S
O
O
Water Pressure Switch
N/A
S
S
Pump Time Delay Relay (EM2)
S
N/A
N/A
Low Water Cutoff (w/man. reset & test button)
O
O
O
Water Ways
Copper Tubes
S
S
S
Cupro-nickel Tubes
O
O
O
Glass-Lined Cast Iron Headers
S
S
S
Bronze Headers
O
N/A
N/A
Codes
ASME CSD-1
O
O
O
IRI
O
O
O
FM
O
O
O
Kentucky
S
S
S
Minnesota
O
O
O
Legend
S
= Standard
O
= Optional
SP = Standard with
CSD-1, spark
ignition propane
and standing
pilot. Optional on
spark ignition
natural
NA = Not Available
MegaTherm MT Features and Options
Size
CSD-1
CSD-1 + IRI
FM
Kentucky
Minnesota
Low
LWCO
High + Low
Bronze
Cupro-
Bronze Hdrs/
Water
100%
Gas Press
Casting
Nickel
CuNi Tubes
Cutoff
Lockout
Switch
Tubes
Code: JX
Code: JD
Code: FX
Code: KC
Code: MX
Code: LC
Order: K
Order: N
Order: S
500
Add CSD-1
Std.
600
Add CSD-1
Std.
715
Add CSD-1
Std.
850
Add CSD-1
Std.
1,010
Add CSD-1
Std.
1,200
Add CSD-1
Std.
1,430
Add CSD-1
Std.
1,670
Add CSD-1
Std.
1,825
Add CSD-1
Std.
2,000
Add CSD-1
Std.
N/A
N/A
2200E/2450I
Add CSD-1
Std.
N/A
N/A
2800E/3050I
Std.
N/A
N/A
3200E/3500I
Std.
N/A
N/A
3600E/4050I
Std.
N/A
N/A
4000E/4500I
Std.
N/A
N/A
4500E/5000I
Std.
N/A
N/A
*Order ignition system 04.
Special Codes/Options
Heat Exchangers
Saltwater
