PAGE 10
19A SERIES BOILER
INSTALLATION INSTRUCTIONS
SERIES 19A BOILER (STEAM)
TAPPING AND CONTROL LOCATIONS
“A” - 1" TAP, PRESSURE CONTROLS “B” - 1 1/4" TAP, STEAM SAFETY VALVE “C” - 1" TAP, OPTIONAL LWCO
“D” - 3/4" TAP
3" SUPPLY TAPS
“A” “B” 
VENT CONNECTION
12"
ADAPTER COLLAR
( 11 & 12 SECTION ONLY )
TOP VIEW
1 1/2" SKIMMER TAP
WATER LEVEL SIGHT GLASS ASS'Y.
3/4" TAP STD.
3/4" TAP OPT.
CLEANOUTS
OPTIONAL
INSPECTION
TAPPINGS
3" RETURN TAP
3" | “A” | JACKET |
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| 4" TAP |
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| NORMAL STEAM |
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| WATER LINE |
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| “D” | 1" TAP “C” |
| “C” |
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| 41 1/4" |
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| OPT. |
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| INSP. |
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| TAP. |
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| FLOOR |
3" SUPPLY TAPS
DOMESTIC WATER |
HEATER (OPTIONAL) |
3/4" |
1 1/4" OPTIONAL |
INSPECTIONTAP |
(1 1/2" TAP, RELIEF VALVE- 11 AND 12 SECTION ONLY)
3/4" VENT CONN.
3" RETURN TAP
FRONT VIEW | SIDE VIEW |
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SERIES 19A BOILER (WATER)
TAPPING AND CONTROL LOCATIONS
“A” - 1" TAP, AIR REMOVAL CONN., OPT LWCO “B” - 1 1/4" TAP, SAFETY VALVE
“C” - 1" TAP, OPTIONAL LWCO “D” - 3/4" TAP, OPER. TEMP. CONN.
3" TAP M.R.H. LIMIT
3" TAP 
“A” “B” 
VENT CONNECTION
12"
ADAPTER COLLAR
( 11 & 12 SECTION ONLY )
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| TOP VIEW |
THERALTIMER | 3" | “A” | JACKET | 3" SUPPLY TAPS |
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3/4" TAP STD.MAN. |
| 4" SUPPLY |
| DOMESTIC WATER |
RESET HIGH LIMIT |
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| HEATER (OPTIONAL) | |
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3/4" TAP OPT. |
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| 1/2" TAP |
| 3/4" |
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| “D” | 1" TAP “C” |
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| “C” |
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CLEANOUTS |
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OPTIONAL |
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| 1 1/4" OPTIONAL |
INSPECTION |
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| INSPECTIONTAP |
TAPPINGS |
| OPT. INSP. TAP. |
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3" RETURN TAP |
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FRONT VIEW | SIDE VIEW |
1 1/2" SKIMMER TAP
3/4" VENT CONN.
3" RETURN TAP
FIGURE 11
