
E
F
M
L
I
G
K
D
A
B
C
J
H
Construction Specifications
The domestic storage tank is
constructed of stainless steel and is
surrounded by boiler water in the outer
tank, resulting in a full "wrap around"
heat exchanger.
It's superior heat exchange surface
(typically 1.5 to 2.5 times larger than a
traditional coil) produces a larger
volume of hot water in a short period of
time. Thanks to this fast recovery, the
storage capacity can be reduced,
resulting in a reduced thermal loss.
The inner, domestic tank is suspended
within the outer tank so it is free to
expand and contract as the pressure
varies during hot water draws.
Moreover, its corrugations amplify the
movement and prevents the lime build
up on the heat exchanger; thus
maintaining its performance during the
SMART Series life span.
The "Tank-in-Tank" design allows us to
store domestic water at higher temperatures preventing bacteria growth.
Additionally, contructed of high quality
stainless steel, SMART Series does not
require a protective anode.
The inner domestic storage tank is
constructed of durable, corrosion
resistant stainless steel.
SMART Series, is insulated with 2" of
injected polyurethane foam, resulting in
a stand by heat loss of less than 1º/Hr.
Superior Heat Exchange Surface Area
Stainless Steel Tank Construction
Optimal Insulation
Anti-Bacteria Growth / Maintenance Free
Self Cleaning / Self - descaling
SMART Series
A. Inner stainless steel tank
B. Outer steel tank
. 2” Polyurethane insulation
C
D. Boiler water connection
E. Boiler water connection
F. Hot water outlet
G. Cold water inlet
H. Auxiliary connection
I. Thermostat control
J. Plastic jacket
K. Thermostat remote sensing bulb
L. Air vent connection
M. Electrical wiring plug
Smart Series is tested in accordance with the standard (ANSI/UL-174) (CAN/CSA-C22.2 NO. 110-M90) and is certified by ETL.
Superior Design “ Tank-in-Tank” Technology

Model
No.
Dimension
Height Boiler/Supply
Return
Domestic
Inlet/Outlet
Domestic
Capacity
(gal.)
Heating
Water Capacity
(gal.)
Heat
Surface
(sq. ft.)
Empty
Weight
(lbs)
3rd Domestic
Connection*
2"
22" dia.
3
8"
1" 3/4" 3/4" 28
13
1
15
5
Smart 30
22" dia.
46" 1"
3
/4"
3/4"
36
1
6
135
6
Smart 40
22" dia. 57"
1
1
4
/
"
3
/4"
3/4" 46 8 20
165
Smart 50
22" dia.
66"
1
1
4
/
"
3/4" 3/4"
5
6
8
2
4
1
90
Smart 60
1
2
26" dia.
6
1"
1
/
"
1
2
1
/
"
1
2
1
/
"
70
14
28
271
Smart 80
1
2
26" dia.
7
8"
1
/
"
1
2
1
/
"
1
2
1
/
"
95
25
36
3
62
Smart 100
32" dia.
7
2"
1
2
1
/
"
1
2
1
/
"
119
43
42
479
Smart 120
Product Specifications
Model
No.
Boiler Output
Btu/hr
1st Hour
Recovery
(gal.)
Peak/Flow
Gal/10 min.
Continuous
Flow
(gal.)
87,000 140 40
Smart 30
115
112,000
180
50
Smart 40
150
140,000
220
65
Smart 50
185
270,000
410
100
Smart 60
360
300,000
460
125
400
Smart 80
337,000
525
150
Smart 100
450
420,000
650
190
560
Smart 120
(*) This fitting can be used as a return connection if circulated domestic water is required or can be used as a connection for the T&P Relief Valve.
Performance
Conditions:
- 200º boiler water supply
- 90º temperature rise
How it Works
Smart Series operating cycle
1 2 3
Cold Start
(pump off)
Recovery Start
(pump on)
(pump off)
Recovery Completed
4
In Service
(pump on)
When the thermostat in
the inner tank calls for
heat, the boiler and circulator start. Boiler water is
circulated around the
outer tank and heats the
domestic water in the
inner tank. After transferring its heat, boiler water is
returned to the boiler to be
re-heated. When the thermostat in the inner tank
reaches its pre-set mark,
the boiler and circulator
shut off.

10
9
Cold Domestic
Water
6
3
7
2
4
7
4
1
8
10
Mixed Water
To dishwasher*
Recirculation Loop
Boiler Return
Optional 12”
Heat Trap
Loop
Boiler supply
SMART Indirect Water Heater
Heating
System Supply
Heating
System Return
Cold
Water Fill
4
5
5
5
3
3
3
2
prestige
prestige
10
11
Prestige
One T riangle Lane Blac
kwood NJ 08 012
p 85 6.228. 8 88
1
f 856 .228.358 4
www.trian gletube .c om
Energy Efficiency
he Stainless Steel Indirect Fired Water Heater is heated by the hot water from
T
your boiler. As your home is being heated, your domestic hot water is being heat-
ed at the same time, thereby, consuming less fuel and conserving energy.
Combine this with a recovery rate that is up to three times faster than conven-
tional gas or electric water heaters, and The SMART Series Indirect Fired Water
Heater heats more hot water with less fuel for the energy conscious consumer.
Long Term Dependability
The average life span of a SMART Series Indirect Fired Water Heater exceeds 20
years! That is two or three times the average life of a conventional gas, oil or electric
water heater.
Installation
(*) Optional devices may be required by local codes.
1. Temperature & Pressure
Relief Valve
2. Drain
3. Shut -off Valves
4. Circulator
5. Flow Check Valve
6. Backflow preventer or
pressure reducing valve(*)
7. Expansion Tank
8. Mixing Valve
SMART Installation with
Prestige Condensing Boiler
9. Pressure Relief Valve
10. Air Vent
11. Automatic Fill Valve
2009-8 Smart Lit. 6/8/09