Install Instructions

Phase III
®
25
MODEL TR-20 TR-30 TR-36 TR-45 TR-60 TR-80 TR-100 TR-120
Capacity Gal
Domestic 20 30 36 46 56 76 95 119
Boiler 8 9 12 8 8 15 25 30
Heating surface Sq. Ft. 12 15 18 20 24 28 34 42
Head loss boiler side Ft. 3/4 3/4 1 1 1/4 1 1/2 2 2 2 1/2
Piping connections Inches
Domestic ø 3/4 3/4 3/4 3/4 1 1 1/2 1 1/2 1 1/2
Boiler ø 1111 1/4 1 1/4 2 2 2
Recirculation ø 3/4 3/4 3/4 3/4 1 1 1/2 1 1/2 1 1/2
Dimensions Inches
A 1432423949425352
B 3849605767627272
C 1919192323242630
D 1919192323242730
E 7 3/4 7 3/4 7 3/4 14 14 10 3/4 10 3/4 10 3/4
F 1010101010121212
Drywell length Inches 31 39 51 39 51 51 51 51
Empty weight Lbs 110 165 180 194 220 368 390 450
TR SERIES
Domestic Hot
Water Outlet
Domestic Cold
Water Inlet
1/2" NPT
Air Vent
Drywell for Remote
Sensing Bulb
Auxiliary
Connection
C
D
E
Water Heater Specifications
Boiler Water Return
(TR-20 thru TR-36)
Boiler Water Supply
(TR-45 thru TR-120)
Boiler Water Supply
(TR-20 thru TR-36)
Boiler Water Return
(TR-45 thru TR-120)
F
A
B
2"
Top views
Side view
Domestic Hot
Water Outlet
Domestic Cold
Water Inlet
1/2" NPT
Air Vent
Drywell for Remote
Sensing Bulb
Auxiliary
Connection
C
D
E
4 1/8"
4 1/8"
TR-20/30/36/80/100/120
TR-45/60