4
Standard Features MegaTherm MT (500-5000)
MODEL
MT
-POOL
REVISION
P
- PUMP
500-1825
A-
2000-5000
HEAT EXCHANGER
C
-GLASS LINED/COPPER
N
-GLASS LINES/CU-NI
K
-BRONZE/COPPER
S
-BRONZE/CU-NI
VERSION
1-8
TUBE
B-10
TUBE
C-18
TUBE
FUEL
N
-NATURAL
P
-PROPANE
IGNITION
04-
SPARK 110V
09-
SPARK 24V
(500-1825)
18-
SPARK 24V
(2000-5000)
16-
STND. PILOT
SIZE MBTU/h
0500
2000
0600
2200
0715
2450
0850
2800
1010
3050
1200
3200
1430
3500
1670
3600
1825
4000
4050
4500
5000
C
FIRING MODE
C
-STD. ON/OFF
OPTIONS
XX
- STANDARD UNIT
FX-
FM CODE
HL
- HIGH + LOW GAS SWITCHES
JD-
CSD1 + IRI CODE PACKAGE
JX
- CSD-1
LC
- L.W.C.O. + 100% LOCKOUT
LW
-LOW WATER CUT OFF
MX
- MINNESOTA CODE
• Manual shut-off valve
• Manual pilot valve
• Pilot gas regulator
• Electronic operating control with
remote thermometer
• Adjustable manual reset safety high
limit
• Pressure relief valve (75 PSI)
• Two temperature gauges
• Terminal strip
• 2 amp fuse
• EM
2
- pump time delay (500-1825)
• Power on/off switch
• Power on light
• Non-combustible base
(500-1825 Outdoor)
• Integral pump (500-1825)
• Water flow switch (500-1825)
• Water pressure switch (2000-5000)
• Integral finned copper tube heat
exchanger. ASME 160 lb. working
pressure, 2-pass configuration
• Glass-lined cast iron headers
• Stainless steel burners
• Built-in integral draft hood
(indoor models)
• 115/24V transformer for 24V
control system
• Redundant safety gas valve
Model Nomenclature
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
*Spark Ignition standard on Natural Gas and Propane models (Ignition 09).
**Available as Model 999 for local jurisdictions that limit input to 1,000,000 BTU/h.
M
T
Minnesota Code
(MX)
500-850:
• low water cutoff (manual
reset with test button)
• manual firing valve
(2nd shutoff valve)
• 100% lockout
• high gas pressure switch
• additional safety valve
1010-2450:
• low water cutoff (manual
reset with test button)
• manual firing valve
(2nd shutoff valve)
• leak test valve
• 100% lockout
• high & low gas pressure
switches
• solenoid safety valve
• motorized safety with
proof of closure
2800-5000:
• System 4
(see heater pricing)
• low water cutoff (manual
reset with test button)
• manual firing valve
(2nd shutoff valve)
• leak test valve
• 100% lockout
• high & low gas pressure
switches
• motorized safety valve
• motorized safety with
proof of closure
Kentucky Code
(KC) (STD)
• 200° F (max.) automatic
reset high limit
• 200° F (max.) manual
reset high limit
LOCATION
I
-INDOOR
E
-OUTDOOR
Outdoor Units
Standard
Sys. 4
Ship
Size
Unit
*
for FM &
Weight
Sys. 9/16/18
Minnesota
lbs.
500
7,693
N/A
855
600
7,900
N/A
949
715
8,153
N/A
1050
850
8,468
N/A
1100
1010**
9,170
N/A
1240
1,200
9,594
N/A
1410
1,430
9,990
N/A
1570
1,670
10,177
N/A
1622
1,825
10,976
N/A
1725
2,200
15,521
18,307
2320
2,800
17,590
20,324
2500
3,200
19,828
22,819
2840
3,600
20,820
23,677
3175
4,000
22,239
26,003
3940
4,500
23,252
27,750
3790
CODE OPTIONS INCLUDE:
CSD - 1 Code
(JX)
500-2450:
• low water cutoff
(man. reset w/test button)
• manual firing valve (2nd shutoff valve)
• leak test valve
• 100% lockout
2800-5000:
• low water cutoff
(man. reset w/test button)
• manual firing valve (2nd shutoff valve)
• multiple leak test valves
• 100% lockout
• high & low gas pressure switches
CSD-1 + IRI Code Package
(JD)
500-2450
• low water cutoff
(man. reset w/test button
• manual firing valve (2nd shutoff valve)
• leak test valve
• 100% lockout
• normally open vent valve
2800-5000:
• low water cutoff
(man. reset w/test button
• manual firing valve (2nd shutoff valve)
• multiple leak test valves
• 100% lockout
• high + low gas pressure switches
• normally open vent valve
FM Code
(FX)
500-2450:
• add CSD-1
2800-5000:
• System 4
(see heater pricing)
• low water cutoff (manual
reset with test button)
• manual firing valve
(2nd shutoff valve)
• multiple leak test valves
• 100% lockout
• high & low gas pressure
switches
• normally open vent valve
• morotized safety valve
California Code
(LC)
• order low water
100% lockout
Indoor Units
STANDARD
SYS 4
SHIP
SIZE
UNIT*
FOR FM &
WT
SYS 9/16/18
MINNESOTA
lbs.
500
6,622
N/A
808
600
6,888
N/A
819
715
7,061
N/A
873
850
7,505
N/A
945
1010**
7,926
N/A
1041
1,200
8,325
N/A
1199
1,430
8,694
N/A
1280
1,670
9,417
N/A
1445
1,825
9,772
N/A
1570
2,000
13,273
17,055
1950
2,450
14,013
17,993
2100
3050
16,053
19,930
2250
3500
17,858
21,570
2510
4050
19,291
22,361
2750
4500
20,841
26,130
2900
5000
21,832
27,084
3200
