Page 1
There Are Some Things You Can Always Depend On...
Utica H2O
- Stainless Steel Single & Dual Coil Indirect Water Heaters
- Storage Tanks
- Hydronic Buffer Tanks
Page 2
INTRODUCING THE NEW UTICA H2O SERIES...
A complete line of Stainless Steel, Single and Dual Coil Indirect Water Heaters,
Storage Tanks, and Hydronic Buffer Tanks.
Need An Easy Domestic Hot Water Solution With A Low Operating Cost and the Longevity Of Stainless Steel?
Utica H2O Stainless Steel Single Coil Indirect Water Heaters
Need A Hot Water Solution To Balance Input and Storage While Reducing Short Cycling?
Utica H2O Stainless Steel Storage Tanks
Need A Hot Water Solution For Use With Chillers, Heat Pumps, and Low Mass Boilers?
Utica H2O Stainless Steel Hydronic Buffer Tanks
Need A Hot Water Solution For Solar Applications Or Small Zones?
Utica H2O Stainless Steel Single & Dual Coil Solar Water Heaters
standard features
standard features
(
Electric Back-Up can heat the tank if solar heat is unavailable
)
Stainless Steel
Stainless Steel
Water Heaters
Water Heaters
Single Coil Indirect
Single Coil Indirect
Capacities (Gallons) 30, 40, 40L, 50 , 60, 60L, 80 & 115 30, 40, 60, 60L, 80 & 115 40, 60, 80 & 115 60, 80 & 115
Capacities (Gallons) 30, 40, 40L, 50 , 60, 60L, 80 & 115 30, 40, 60, 60L, 80 & 115 40, 60, 80 & 115 60, 80 & 115
316L Stainless Steel Construction
316L Stainless Steel Construction
Top Connections (For Easy, Neat, Clean Installation)
Top Connections (For Easy, Neat, Clean Installation)
Stainless Steel Dip Tube
Stainless Steel Dip Tube
Thermoplastic Jacket (Won’t dent, scratch or corrode)
Thermoplastic Jacket (Won’t dent, scratch or corrode)
Low Pressure Drop (Ideal For Low Mass Boilers)
Low Pressure Drop (Ideal For Low Mass Boilers)
T & P Valve, Stainless Aquastat Well & Drain Valve
T & P Valve, Stainless Aquastat Well & Drain Valve
(Factory installed-taped and doped).
(Factory installed-taped and doped).
2.25” EPS Insulation (Provides Less Than .5°F Per Hour Standby Loss)
2.25” EPS Insulation (Provides Less Than .5°F Per Hour Standby Loss)
Large Diameter, Smooth Coil Heat Exchangers - Prevent Buildup
Large Diameter, Smooth Coil Heat Exchangers - Prevent Buildup
(Stainless Steel Coils Are 25 to 30’ Long and 1-1/8” in Diameter)
(Stainless Steel Coils Are 25 to 30’ Long and 1-1/8” in Diameter)
Honeywell L4080B (Shipped Loose) N/A
Honeywell L4080B (Shipped Loose) N/A
Made in the USA
Made in the USA
warranty
warranty
Limited Lifetime Warranty (Residential), 5 Yr. (Commercial) N/A N/A
Limited Lifetime Warranty (Residential), 5 Yr. (Commercial) N/A N/A
Limited Lifetime Warranty N/A N/A
Limited Lifetime Warranty N/A N/A
OPtIOns
OPtIOns
Low Prole 40L & 60L Capacities 60L Capacities N/A N/A
Low Prole 40L & 60L Capacities 60L Capacities N/A N/A
High Output 80 & 115 Capacities N/A N/A N/A
High Output 80 & 115 Capacities N/A N/A N/A
60, 80 & 115
Electric Back-Up
Electric Back-Up
Commercial Connections (For increased DHW ow)
Commercial Connections (For increased DHW ow)
*Coil Standard N/A 40, 60, 80 & 115 Capacities Standard
*Coil Standard N/A 40, 60, 80 & 115 Capacities Standard
60, 80 & 115
Capacities
Capacities
80 & 115 Capacities
80 & 115 Capacities
(1-1/2” Dom., 1-1/4” Blr.)
(1-1/2” Dom., 1-1/4” Blr.)
Page 3
Stainless Steel
Stainless Steel
Storage Tank
Storage Tank
n/a
n/a
N/A *
N/A *
Stainless Steel
Stainless Steel
Buffer Tanks
Buffer Tanks
Stainless Steel
Stainless Steel
Dual Coil Solar
Dual Coil Solar
Water Heaters
Water Heaters
N/A N/A
N/A N/A
80 & 115
80 & 115
Capacities (1-1/2”)
Capacities (1-1/2”)
All Capacities
All Capacities
(1-1/4”, 1-1/2”, 2”)
(1-1/4”, 1-1/2”, 2”)
60, 80 & 115
60, 80 & 115
Capacities
Capacities
N/A
N/A
Page 4
Utica H2O Stainless Steel Single Coil Indirect Water Heaters
8.0
H2O
L UB
Dimensions/Weights Model
HOT OUTLET
T+P VALVE
DOM. COLD INLET
AQUASTAT
WELL
DRAIN
STANDARD UNIT
3/4" NPT
RECIRC. PORT
1 1/2" NPT
HOT OUTLET
1 1/4" NPT
BOILER SUPPLY
1 1/2" NPT
DOM. COLD INLET
9.5
8.0
AQUASTAT
WELL
DRAIN
COMMERCIAL UNIT
Dimensions & Weights
Models
H2OI30UB
H2OI40UB
H2OI40LUB
H2OI50UB
H2OI60UB
H2OI60LUB
H2OI80UB
H2OI115UB
H2OI80CUB
H2OI115CUB
H2OI80HOUB
H2OI115HOUB
H2OI80HOCUB
H2OI115HOCUB
Height
(Inches)
(Inches)
32 22.5 85
42 22.5 100
34 26.0 100
52 22.5 110
60 22.5 125
44 26.5 120
54 26.5 140
72 26.5 175
54 26.5 120
72 26.5 175
54 26.5 155
72 26.5 190
54 26.5 155
72 26.5 190
8.0
8.0
Dia.
BOILER RETURN
BOILER SUPPLY
T+P VALVE
1 1/4" NPT
BOILER RETURN
Shp.
Wgt.
(Lbs.)
Storage Capacity
(Gals.)
H2OI30UB 30
H2OI40UB 40 7.5 3/4 1
H2OI40LUB 42
H2OI50UB 50 8.0 3/4 1
H2OI60UB 60 8.4 3/4 1
H2OI60LUB 60 7.5 3/4 1
H2OI80UB 80 8.0 1 1
H2OI115UB 115 8.9 1 1
H2OI80CUB 80 8.0 1-1/4 1-1/4
H2OI115CUB 115 8.9 1-1/4 1-1/4
H2OI80HOUB 80 13.5 1 1
H2OI115HOUB 115 14.4 1 1
H2OI80HOCUB 80 13.5 1-1/2 1-1/4
H2OI115HOCUB 115 14.4 1-1/2 1-1/4
Note: Max. Working pressure 150 psi for all capacities.
General Information (See Installation, Operation and Maintenance Manual for complete instructions)
Max. First
Model
H2OI30UB 182 242 155 215 116,200 10.0 2.7
H2OI40UB 202 266 166 230 124,500 10.0 2.9
H2OI40LUB 193 251 157 215 117,900 10.0 2.8
H2OI50UB 222 290 177 245 132,800 10.0 3.1
H2OI60UB 240 311 186 257 139,400 10.0 3.2
H2OI60LUB 220 284 166 230 124,500 10.0 2.9
H2OI80UB 257 328 185 256 138,600 12.0 3.7
H2OI115UB 309 388 206 285 154,200 12.0 4.0
H2OI80CUB 257 328 185 256 138,600 12.0 3.7
H2OI115CUB 309 388 206 285 154,200 12.0 4.0
H2OI80HOUB 386 507 314 435 235,670 15.0 9.0
H2OI115HOUB 439 568 336 465 251,780 15.0 9.5
H2OI80HOCUB 386 507 314 435 235,670 15.0 9.0
H2OI115HOCUB 439 568 336 465 251,780 15.0 9.5
Note: All ratings are based on 200° F boiler water supply and 50° F cold water inlet.
See installation manual for ratings at different temperatures and flow rates.
Specifications subject to change without notice.
Standard
Equipment
Options
Certification/
Decoding
Hour Rating
Gal./Hr @
140° F 115° F 140° F 115° F (BTU/Hr.) (Gal./Min.) (Ft. Water)
Factory installed brass drain and relief valves, welded stainless steel cold water dip tube factory
installed and pressure tested, Honeywell L4080B aquastat for field installation.
(L) Low profile models for applications with low clearances.
(C) Commercial models with larger tappings for higher flow rates.
(HO) High Output models available to meet greater demand.
Continuous
Rating
Gal./Hr. @
Conforms to UL STD 174
Certied to CAN/CSA STD C22.2 No. 110-94
Coil Heating
Surface Sq. Ft.
7.0 3/4 1
7.1 3/4 1
Boiler Output
Required
Piping Connections NPT
Domestic Water
In/Out (Inches)
Min. Boiler
Water Flow
Through Coil
I=Indirect L=Lowboy
30=30 Gals.
40=40 Gals.
50=50 Gals.
60=60 Gals.
80=80 Gals.
115=115 Gals.
C=Commercial
HO=High Output
HOC=High Output
Commercial
Boiler Water
In/Out (Inches)
Pressure Drop
Through Coil
UB=Utica BoilerCapacity:
Page 5
Utica H2O Stainless Steel Storage Tanks
H2O
L UBST
Dimensions/Weights Model
Storage Capacity
(Gals.)
Piping Connections NPT
Cold/Hot
Supply/Return
(Inches)
Heat Source
Pressure
(Inches)
SUPPLY TO
HEAT SOURCE
COLD
WATER INLET
3/4" NPT
RECIRC. PORT
1 1/2" NPT
HOT OUTLET
1" NPT SUPPLY
TO HEAT SOURCE
8.0
TOP CONNECTIONS
ALL 1" NPT
AQUASTAT
WELL
DRAIN
STANDARD UNITS
8.0
T+P VALVE
RETURN FROM
HEAT SOURCE
8.0
HOT OUTLET
T+P VALVE
8.0
1" NPT RETURN
FROM HEAT SOURCE
H2OST30UB 30
1 1
H2OST40UB 40 1 1
H2OST60UB 60
1 1
H2OST60LUB 60 1 1
H2OST80UB 80 1 1
H2OST115UB 115 1 1
H2OST80CUB 80 1-1/2 1
H2OST115CUB 115 1-1/2 1
Note: Max. Working pressure 150 psi for all capacities.
General Information (See Installation, Operation and Maintenance Manual for complete instructions)
Specifications subject to change without notice.
Standard
Equipment
Options
Certification/
Decoding
Factory installed brass drain and relief valves, welded stainless steel cold water dip
tube factory installed and pressure tested, Honeywell L4080B aquastat for field installation.
(L) Low profile models for applications with low clearances.
(C) Commercial models available for applications with larger connections.
ST=Storage Tank L=Lowboy
30=30 Gals.
40=40 Gals.
60=60 Gals.
80=80 Gals.
115=115 Gals.
C=Commercial
UB=Utica BoilerCapacity:
1 1/2" NPT
COLD INLET
9.5
COMMERCIAL UNITS
Dimensions & Weights
Models
H2OST30UB
H2OST40UB
H2OST60UB
H2OST60LUB
H2OST80UB
H2OST115UB
H2OST80CUB
H2OST115CUB
Height
(Inches)
34.0 23.5 75
44.0 23.5 90
62.0 23.5 115
46.0 23.5 110
56.0 28.0 140
74.0 28.0 175
56.0 28.0 140
74.0 28.0 175
AQUASTAT
WELL
DRAIN
Dia.
(Inches)
Shp. Wgt.
(Lbs.)
Conforms to UL STD 174
Certied to CAN/CSA STD C22.2 No. 110-94
Schematic
Diagram
(Typical
Installation)
Page 6
Utica H2O Stainless Steel Buffer Tanks
H2O
114
WC UBBT
40
Dimensions/Weights Model
H2OBT40114UB
H2OBT40112UB 1-1/2
H2OBT402UB
H2OBT60114UB
H2OBT60112UB 1-1/2
H2OBT602UB 2
H2OBT80112UB
H2OBT80114UB 1-1/2
H2OBT802UB 2
H2OBT115114UB
H2OBT115112UB 1-1/2
H2OBT1152UB 2
H2OBT40114WCUB
H2OBT40112WCUB 1-1/2
H2OBT402WCUB
H2OBT60114WCUB
H2OBT60112WCUB 1-1/2
H2OBT602WCUB 2
H2OBT80114WCUB
H2OBT80112WCUB 1-1/2
H2OBT802WCUB 2
H2OBT115114WCUB
H2OBT115112WCUB 1-1/2
H2OBT1152WCUB 2
Note: Max. Working pressure 60 psi for all capacities.
General Information (See Installation, Operation and Maintenance Manual for complete instructions)
Specifications subject to change without notice.
Standard
Equipment
Options (WC) With Coil
Certification/
Dimensions & Weights
Model
H2O40BT114UB
H2O40BT112UB
H2O40BT2UB
H2O60BT114UB
H2O60BT112UB
H2O60BT2UB
H2O80BT114UB
H2O80BT112UB
H2O80BT2UB
H2O115BT114UB
H2O115BT112UB
H2O115BT2UB
Height
A
(Inches)
42.0 31 11
44.0 31.5 11.5
54.0 40.5 11.5
72.0 61.5 11.5
B
(Inches)C(Inches)
Shp. Wgt.
(Lbs.)
(97 WC)
115
(125 WC)
125
(135 WC)
160
(170 WC)
Decoding
87
Storage Capacity
(Gals.)
40
60
80
115
40
60
80
115
Factory installed brass drain and relief valves, welded stainless steel cold
water dip tube factory installed and pressure tested, Honeywell L4080B
aquastat for field installation.
BT=Buffer Tank 114=1-1/4” NPT
40=40 Gals.
60=60 Gals.
80=80 Gals.
115=115 Gals.
112=1-1/2” NPT
Piping Connections
NPT (Inches)
WC=With Coil
2=2” NPT
1-1/4
2
1-1/4
1-1/4
1-1/4
1-1/4
2
1-1/4
1-1/4
1-1/4
UB=Utica BoilerCapacity:
Conforms to UL STD 174
Certied to CAN/CSA STD C22.2 No. 110-94
Page 7
UTICA H2O STAINLESS STEEL BUFFER TANKS
•
Reduces chiller or boiler short cycling
(Short cycling results in reduced operating efciency and shorter equipment life)
•
Used in systems having several low BTU cooling or heating loads calling at different times
•
Full size tappings on buffer tank for peak performance (1-1/4”, 1-1/2”, and 2”)
• Used in systems operating below the design load condition, which is most of the time.
H2O HYDRAULICALLY DECOUPLED
To/From
Boiler/Chiller/Heat-Pump
Buffer Tanks
To/From
System
Buffer Tank Sizing - Calculating Capacity
Utica H2O buffer tanks are a simple, cost effective way to improve overall system efciency by reducing unnecessary equipment short cycling.
The recommended capacity or volume of a buffer tank is based on four variables.
1) The duration of the heating or cooling source “on time” (minutes). The desired length of “on time” for each run cycle depends on the
type of equipment used. Heat pump and chiller manufacturers typically recommend a minimum of 5 to 10 minutes on time, and boiler
manufacturers may recommend a minimum of 10 minutes “on time”. Check with your equipment manufacturer. Generally, the longer the
“on time”, the higher the overall operating efciency.
2) The minimum rate of heat input (BTU/HR). This is based on the heat pump or chiller output, or the boiler output at the minimum ring rate if
the boiler has a variable input system that ramps input down as the demand decreases.
3) The minimum system load (BTU/HR). This is the demand placed on the system with the smallest zone calling for heat.
4) The allowable tank temperature rise (deg. F). This varies depending on the type of heating or cooling system used, and on the
design of the distribution system. Chillers may require a tight, (6 deg. F), differential to assure good dehumidication and prevent freezing,
heat pumps may require a (10 deg. F) differential to maintain a high COP, and boilers with hydronic heating distribution systems may require
a differential anywhere between 10 to 40 deg. F depending on the application.
The following formula determines the tank volume:
T X (
Q heat input - Q min. heat load
Water to Water Heat Pump Example:
Town and Country Mechanical wants a minimum heat pump on time of 10 minutes. The heat pump output is 46,500 BTU/HR.
The smallest zone is a 7,000 BTU/HR bathroom. The allowable temperature differential is 90 to 100 deg. F for the radiant heat zones.
Tank temp. rise
=
V
X 500
x (
10
46,500 - 7,000
(
100-90
)
) x 500
V
=
V = Buffer tank volume (gallons) T = desired heat source “on cycle” (min.)
)
Q heat source = heat source output (BTU/HR) Q min. heat load = heat output to minimum load
Tank temp rise (deg. F)
=
79.0 Gallons minimum volume. Choose the H2O80BT buffer tank.
Page 8
Utica H2O Stainless Steel Dual and Single Coil Solar Water Heaters
DRAIN VALVE
3/8" ID
THERMAL WELL
4" X 10"
ELECTRICAL BOX
1.5
ELECTRIC BACKUP UNITS
H2O
D60
E UB
Bottom Coil
Heating
Surface Sq.
Min. Boiler
Water Flow
Through
Dimensions/Weights Model
TOP COIL
SUPPLY
COLD
WATER IN
BOTTOM SOLAR
COIL RETURN
T+P VALVE
TOP COIL
3/8" ID THERMAL WELL
1/2" NPT RECIRC.
RETURN PORT
TOP HEATING COIL
FOR BACKUP
BOTTOM COIL
3/8" ID THERMAL WELL
BOTTOM HEATING COIL
FOR SOLAR
DUAL COIL UNITS
Dimensions & Weights
SINGLE COIL
Height
(Inches)
62.0 23.5 135
56.0 28.0 145
74.0 28.0 180
DUAL COIL
62.0 23.5 165
56.0 28.0 175
74.0 28.0 205
62.0 23.5 175
56.0 28.0 185
74.0 28.0 215
Models
H2OI60EUB
H2OI80EUB
H2OI115EUB
H2OI60DUB
H2OI80DUB
H2OI115DUB
H2OI60DEUB
H2OI80DEUB
H2OI115DEUB
TOP COIL
RETURN
HOT WATER
OUT
BOTTOM SOLAR
COIL SUPPLY
Dia.
(Inches)
Storage Capacity
(Gals.)
Top Coil
Heating Surface
Sq. Ft.
SINGLE COIL
H2OI60EUB 60 N/A 8.3 1
H2OI80EUB 80 N/A 8.0 1
H2OI115EUB 115 N/A 8.9 1
DUAL COIL
H2OI60DUB 60 7.4 8.3 1
H2OI80DUB 80 7.4 8.0 1
H2OI115DUB 115 7.4 8.9 1
H2OI60DEUB 60 7.4 8.3 1
H2OI80DEUB 80 7.4 8.0 1
H2OI115DEUB 115 7.4 8.9 1
Note: Max. Working pressure 150 psi for all capacities.
General Information (See Installation, Operation and Maintenance Manual for complete instructions)
Max.
Rec.
Top
Coil
SINGLE COIL
DUAL COIL
Max. Rec.
Bottom
Coil
I=Indirect D=Dual Coil UB=Utica BoilerCapacity:
60=60 Gals.
80=80 Gals.
115=115 Gals.
Model
Max. First
Hour Rating
Gal./Hr. @
Continuous
Rating
Gal./Hr. @
140° F 115° F 140° F 115° F (Gal./Hr.) (Gal./Hr.) (Gal./Min.) (Ft. Water)
H2OI60EUB 45.9 52.0 15.9 22.0 N/A 214 10.0 3.5
H2OI80EUB 55.9 62.0 15.9 22.0 N/A 214 10.0 3.6
H2OI115EUB 73.9 80.0 15.9 22.0 N/A 214 10.0 3.9
H2OI60DUB 45.9 52.0 15.9 22.0 185 214 10.0 3.5
H2OI80DUB 55.9 62.0 15.9 22.0 180 214 10.0 3.6
H2OI115DUB 73.9 80.0 15.9 22.0 190 214 10.0 3.9
H2OI60DEUB 45.9 52.0 15.9 22.0 185 214 10.0 3.5
H2OI80DEUB 55.9 62.0 15.9 22.0 180 214 10.0 3.6
H2OI115DEUB 73.9 80.0 15.9 22.0 190 214 10.0 3.9
Note: All ratings are based on 180° F boiler water supply and 50° F cold water inlet. For Dual Coil units,
continuous ratings shown are for the lower coil only. Specifications subject to change without notice.
Factory installed brass drain and relief valves, welded stainless steel cold water dip tube
factory installed and pressure tested, Honeywell L4080B aquastat for field installation.
Standard
Equipment
Shp.
Wgt.
(Lbs.)
Options (E) Electric Back-Up models for supplemental heating.
Removable thermal well to accept a solar control thermostat or thermistor. Dual coil units
equipped with two aquastat wells which control each coil independently and built-in recirculation tapping. Units with Electric Back-Up are provided with 4” x 10” electrical box with pre-wired
heating element, thermostat, and hi-limit. All electric back-up units provided with 240 volt AC,
3500 watt element.
Certification/
Decoding
Conforms to UL STD 174
Certied to CAN/CSA STD C22.2 No. 110-94
Ft.
Coil
E=Electrical
Back up
(3500 Watts)
Piping
Connections
NPT
(Inches)
Pressure
Drop Through
Coil
Contractor
Assistance: 800.325.5479
PN 240009329 Rev. 11/13
P.O. Box 4729
Utica, New York 13504
tel: 315.797.1310
• fax: 315.797.3762
www.uticaboilers.com
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