Pentair 472645 Standard Features MegaTherm MT, Model Nomenclature, Indoor Units, Outdoor Units

Standard Features MegaTherm MT (500-5000)

•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

•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

•EM2 - 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)

Model Nomenclature

1 2

M T

3 4 5 6

7 8

9 10 11 12 13 14 15 16

C

MODEL

MT-POOL

SIZE MBTU/h

0500 2000

0600 2200

0715 2450

0850 2800

1010 3050

1200 3200

1430 3500

1670 3600

1825 4000

4050

4500

5000

LOCATION

I-INDOOR

E-OUTDOOR

FUEL

N-NATURAL

P-PROPANE

IGNITION

04- SPARK 110V

09- SPARK 24V

(500-1825)

18- SPARK 24V

(2000-5000)

16- STND. PILOT

FIRING MODE

C-STD. ON/OFF

VERSION	REVISION
1-8 TUBE	P- PUMP
B-10 TUBE	500-1825
C-18 TUBE	A- 2000-5000

HEAT EXCHANGER

C-GLASS LINED/COPPER N-GLASS LINES/CU-NI K-BRONZE/COPPER S-BRONZE/CU-NI

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

Indoor Units Outdoor Units

CODE OPTIONS INCLUDE:

	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

	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

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

*Spark Ignition standard on Natural Gas and Propane models (Ignition 09).	FM Code (FX)
**Available as Model 999 for local jurisdictions that limit input to 1,000,000 BTU/h.	500-2450:
	• add CSD-1

2800-5000:

• System 4

(see heater pricing)

CSD - 1 Code (JX)	CSD-1 + IRI Code Package (JD)
500-2450:	500-2450
• low water cutoff	• low water cutoff
(man. reset w/test button)	(man. reset w/test button
• manual firing valve (2nd shutoff valve)	• manual firing valve (2nd shutoff valve)
• leak test valve	• leak test valve
• 100% lockout	• 100% lockout
2800-5000:	• normally open vent valve
• low water cutoff	2800-5000:
(man. reset w/test button)	• low water cutoff
• manual firing valve (2nd shutoff valve)	(man. reset w/test button
• multiple leak test valves	• manual firing valve (2nd shutoff valve)
• 100% lockout	• multiple leak test valves
• high & low gas pressure switches	• 100% lockout
	• high + low gas pressure switches
	• normally open vent valve

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 cutoff + 100% lockout

• 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

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