ECR International H2OI30 Gebrauchsanweisung
H2O
INDIRECT-FIRED
WATER HEATERS
INSTALLATION, OPERATION &
MAINTENANCE MANUAL
P/N# 615000054, Rev. B [10/2011]
MODELS
H2OI30
H2OI40
H2OI40L
H2OI50
H2OI60
H2OI60L
H2OI80
H2OI80C
H2OI80HO
H2OI80HOC
H2OI115
H2OI115C
H2OI115HO
H2OI115HOC
An ISO 9001-2008 Certified Company
ECR International, Inc.
2201 Dwyer Avenue, Utica NY 13501
web site: www.ecrinternational.com
Information and specications outlined in this manual in effect at the time of
printing of this manual. ECR International reserves the right to discontinue, change
specications or system design at any time without notice and without incurring
any obligation, whatsoever.
FOR SINGLE WATER HEATER INSTALLATIONS
Conforms to UL STD 174
Certied to CAN/CSA STD C22.2 No. 110-94
2
I. General Information
IMPORTANT INFORMATION – READ CAREFULLY
NOTE: Equipment shall be installed in accordance with those installation regulations required in the area where the
installation is to be made. These regulations shall be carefully followed in all cases. Authorities having jurisdiction shall
be consulted before installations are made. All wiring on water heaters shall be in accordance with the National Electrical
Code and/or local regulations.
Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal injury, or loss
of life. Read and understand the entire manual before attempting installation, start-up, operation, or service. Installation
and service must be performed only by an experienced, skilled installer or service agency.
This water heater contains very hot water under high pressure. Do not unscrew any pipe ttings or attempt to disconnect
any components of this water heater without positively assuring that the water is cool and has no pressure. Always wear
protective clothing and equipment when installing, starting up or servicing this water heater to prevent scalding injuries.
Do not rely on the pressure and temperature gauges to determine the temperature and pressure of the water heater.
This water heater contains components that become very hot when the boiler is operating. Do not touch any components
unless they are cool.
Failure to follow all instructions in the proper order can cause personal injury or death. Read all instructions, including all
those contained in component manufacturers’ manuals before installing, starting up, operating, maintaining, or servicing
the water heater.
To reduce the risk of excessive pressures and temperatures in this water heater, install temperature and pressure
protective equipment required by local codes but no less than a combination temperature relief valve certied by a
nationally recognized testing laboratory that maintains periodic inspection of production of listed equipment or materials,
as meeting the requirements for Relief Valves and Automatic Shutoff Devices for Hot Water Supply Systems, ANSI Z21.22-
latest edition. This valve must be marked with a maximum set pressure not to exceed the marked working pressure of
the water heater. Install the valve into an opening provide and marked for this purpose in the water heater, and orient it
or provide tubing so that any discharge from the valve will exit only within 6 inches above, or at any distance below, the
structural oor, and cannot contact any live electrical part. The discharge opening must not be blocked or reduced in size
under any circumstances.
Heat transfer medium must be water or other non-toxic uid having a toxicity rating or class of 1, as listed in clinical
Toxicology of Commercial Products, latest edition. The pressure of the heat transfer medium must be limited to a
maximum of 60 psig by a listed safety or relief valve.
I. General Information & Safety Instructions ................................................................................ 2
II. Pre-installation Considerations ................................................................................................ 4
III. Piping .................................................................................................................................. 9
IV. Electrical .............................................................................................................................13
V. Operation ............................................................................................................................13
VI. Maintenance ........................................................................................................................16
VII. Troubleshooting ...................................................................................................................16
Table of Contents
3
Hazard Denitions
The following dened terms are used throughout this manual to bring attention to the presence of hazards of various risk
levels or to important information concerning the life of the product.
Indicates a presence of hazards that will cause severe personal injury, death or substantial property damage.
Indicates the presence of hazards that can cause severe personal injury, death or substantial property damage.
Indicates presence of hazards that will or can cause minor personal injury or property damage.
Indicates special instructions on installation, operation or maintenance that are important but not related to
personal injury or property damage.
DO NOT store or use gasoline or other ammable vapors or liquids in the vicinity of this or any other appliance.
If you smell gas vapors, DO NOT try to operate any appliance - DO NOT touch any electrical switch or use any phone in
the building. Immediately, call the gas supplier from a remote located phone. Follow the gas supplier’s instructions or if
the supplier is unavailable, contact the re department.
IMPORTANT SAFETY INSTRUCTIONS
WARNING – When using electrical appliances, basic safety precautions to reduce the risk of re, electric
shock, or injury to persons should be followed, including:
READ ALL INSTRUCTIONS BEFORE USING THIS BUFFER TANK.
1.
This water heater must be grounded. Connect only to properly grounded outlet. See “GROUNDING
INSTRUCTIONS” found in Section IV.
2.
Install or locate this water heater only in accordance with the provided installation instructions
3.
Use this water heater only for its intended use as described in this manual.
4.
Do not use an extension cord set with this water heater. If no receptacle is available adjacent to the water
heater, contact a qualied electrician to have one properly installed.
5.
As with any appliance, close supervision is necessary when used by children.
6.
Do not operate this water heater if it has damaged connections or plug, if it is not working properly, or if it has been
damaged or dropped.
7.
This water heater should be serviced only by qualied personnel. Contact nearest authorized service facility for
examination, repair, or adjustment.
4
II. Pre-installation Considerations
Inspect shipment carefully for signs of damage. All equipment is carefully inspected and packed. ECR’s responsibility
ceases upon delivery of the water heater to the carrier in good condition. Any claims for damage or shortage, must
be led immediately against the carrier by the consignee. No claims for variances or shortages will be allowed by the
Manufacturer, unless they are presented within sixty days after receipt of the equipment.
Installation must conform to the requirements of the authority having jurisdiction. In the absence of such requirements,
installation must conform to the National Plumbing Code and the National Electrical Code ANSI/NFPA No. 70, current
edition.
IMPORTANT CONSIDERATIONS BEFORE INSTALLATION
1.
Water Heater Sizing.
Choose the water heater model based on the expected water usage for the given site. The average residence with one
shower or more will require a Model 40 or larger. The Model 30 should only be considered for residences with minimal
water demand, or for commercial applications without showers. See tables on pages 17 and 18.
Consult ASHRAE sizing guides and other references.
Factors that increase water demand dramatically include high ow shower heads, hot tubs, and the use of more than one
shower at a time. Increase the tank size if these factors are present. Consult ASHRAE sizing guides or other references.
Dimensions, weights, ratings, and capacities are outlined in Tables 1 and 2.
2.
Boiler Sizing.
The water heater will provide the rated performance only if it is used with a boiler with a heating capacity of at least
as much as the capacity ratings in Table 2. If the boiler has less capacity, the water heating output will be reduced. To
determine performance with other boiler outputs, refer to the expanded capacity tables in the Appendix.
5
Model
Storage
Volume
Coil
Heating
Surface
Dimensions
(Inches) Piping Connections
Max.
Working
Pressure
Approx.
shipping
Wt.
Gals. Sq. Ft. Ht. Dia. Cold/Hot
In/Out
Heat Source
Supply/Return (psi) Lbs.
H20I30 30 7.0 32.0 22.5 3/4 1150 85
H2OI40 40 7.5 42.0 22.5 3/4 1150 100
H2OI40L 42 7.1 34.0 26.0 3/4 1150 100
H2OI50 60 8.0 52.0 22.5 3/4 1150 110
H20I60 60 8.4 60.0 22.5 3/4 1150 125
H20I60L 60 7.5 44.0 26.5 3/4 1150 120
H2OI80 80 8.0 54.0 26.5 1 1 150 140
H2OI115 115 8.9 72.0 26.5 1 1 150 175
High Output Units
H2OI80HO 80 13.5 54.0 26.5 1 1 150 155
H2OI115HO 115 14.4 72.0 26.5 11150 190
H2OI80HOC 80 13.5 54.0 26.5 1½1¼150 155
H2OI115HOC 115 14.4 72.0 26.5 1½ 1¼150 190
TABLE 1 Dimensions and Capacities
HONEYWELL
4080B THERMOSTAT
DRAIN
VALVE
6
Model
Max. First
Hour Rating
Continuous
Rating
Boiler
Output
Needed
Min. Boiler
Water
Flow
Through
Coil
Pressure Drop
Through Coil
Gal/Hr. @ Gal/Hr @ (BTU/Hr) Gal/Min (Ft. Water)
140F 115F 140F 115F
H20I30 182 242 155 215 116,200 10.0 2.7
H2OI40 202 266 166 230 124,500 10.0 2.9
H2OI40L 193 251 157 215 117,900 10.0 2.8
H2OI50 222 290 177 245 132,800 10.0 3.1
H20I60 240 311 186 257 139,400 10.0 3.2
H20I60L 220 284 166 230 124,500 10.0 2.9
H2OI80 257 328 185 256 138,600 12.0 3.7
H2OI115 309 388 206 285 154,200 12.0 4.0
High Output Units
H2OI80HO 386 507 314 435 235,670 15.0 9.0
H2OI115HO 439 568 336 465 251,780 15.0 9.5
H2OI80HO(C) 386 507 314 435 235,670 15.0 9.0
H2OI115HO(C) 439 568 336 465 251,780 15.0 9.5
Table 2 - Ratings
Table 2 For different ratings refer to table on page 18.
7
3.
Circulator Sizing.
Refer to Table 2 for the minimum ow through the water heater coil and the pressure drop at minimum ow. Calculate the
pressure drop across all piping and ttings connected to the water heater zone. Be sure to include all zone valves, check
valves, and shut-off valves. It is recommended that the water heater zone be piped with 1” pipe around the entire loop on
typical residential sites.
A. System Zone Control
The water heater must be installed as a separate zone from the space heating system. The water heating zone’s piping
and circulator must be sized for the minimum ow rate with all the zones in use and a maximum ow with only the water
heater in use. Zone control with circulators normally gives the best performance.
The three most common systems are:
1.
Zone Circulators - Space heating zones use a circulator for each zone. The water heater is controlled with an
additional circulator.
2.
Hybrid System - Space heating zones use zone valves for each zone. The water heater is controlled with an
additional circulator.
3.
Zone Valves - Space heating zones use zone valves for each zone. The water heater is controlled with an
additional zone valve. Select a valve with a low pressure drop, and assure minimum ow with adequate pipe
sizing.
B. Priority or Non-Priority for Hot Water
1.
Option 1 – Priority. The demand for space heating is interrupted until the hot water demand is satised. This
option provides the maximum delivery of hot water.
Priority is recommended when:
A. The boiler output is less than 100,000 Btu per hour, or
B. The boiler output required to satisfy the hot water demand is more than 50% of the boiler output needed to
satisfy the space heating demand, or
C. When an interruption in space heating can be tolerated during long domestic hot water draws.
In most cases the delay in space heating will not be noticed because of the rapid recovery of the water
heater. It must be recognized however that certain water heater malfunctions, such as a failed thermostat or
circulator, could delay space heating indenitely.
2.
Option 2 – Non-Priority. Boiler output is divided between space heating and water heating. Heating of
domestic hot water can be reduced during simultaneous space and water heating demands. The amount of
reduction depends on boiler output, number of space heating zones calling, and the amount of boiler water ow
split between space heating and water heater zones.
8
C. Locating the water heater.
Water heater should be located in an area where water leakage from the tank or connections will not result in damage to
areas adjacent to the water heater or to lower oors of the structure. When such a location can not be avoided, a suitable
drain pan must be installed under the water heater, and the drain pan must be connected to a drain.
Water heater should be installed as close to the boiler as is practical for easy access for service. Unit is designed for instal-
lation on combustible ooring and in alcoves, closets, etc.
The minimum clearances from combustible surfaces are:
Bottom -------------------------------- 0”
Left, right, and rear sides ---------- 0.5”
Front -------------------------------- 0.5”
Top ------------------------------------ 6”
The minimum clearances for service are:
Bottom -------------------------------- 0”
Left, right, and rear sides ------------ 3”
Front ----------------------------------- 6”
Top ------------------------------------ 6”
D. Additional recommended components
1.
Shut-off valves. Allows the isolation of the water heater from the boiler system during service.
2.
Unions. Allows for easy locating or removal.
3.
Vacuum breaker. Protects water heater from collapse if a hot tank is valved off to service other components in
the system.
4.
Thermal expansion tank. If the water heater is installed in a closed water supply system, such as a system
having a back ow preventer in the cold water supply line, the installation of a thermal expansion tank is
required.
E. Removing the Existing Domestic Water Heating System
1.
External Tankless Heater- Disconnect all lines to the boiler and plug the boiler ttings. Disconnect the external
heater from the boiler piping, and the domestic piping systems.
2.
Internal Tankless Heaters- Disconnect the domestic piping. Do not plug the cold water or the hot water ttings
in the internal tankless coil. Leave the coil in the boiler with the cold and hot water ttings open to prevent
pressure build-up in the coil.
WALLS
WALLS
CEILING
6" Minimum 0.5" Minimum
0.5"
Min.
Sides
0.5"
Min.
Sides
0.5"
Min.
Sides
0.5"
Min.
Sides
Top
Rear
Front
Provide access clearance
Front View Top View
9
F. Water Quality
Improper water quality will reduce the expected life of the water heater. Hard water, sediment, high or low Ph, and high
levels of chlorides in the domestic water should be avoided. Sediment and hard water will eventually coat the heating coil
inside the water heater and reduce the rate of hot water production and may, eventually cause a failure. High or low Ph
and/or high chloride concentrations will cause corrosion and eventually failure. A lter is strongly recommended where
sediment is present in the water. A water softening system is recommended for areas with hard water.
In an area where the water quality is not known, a water quality test should be performed.
WARNING:
Do not operate the water heaters in areas where the Ph is above 8.0 or below 6.0, and/or with chloride concentrations
greater than 100 parts per million (ppm). ECR’s standard warranty does not cover problems caused by improper water Ph
or excessive levels of chlorides.
III. Piping
A. Domestic water piping. See Figure 1.
1.
Shut off the cold water supply at the main shutoff valve.
Open one or more faucets to relieve the pressure. Open the system drain, leaving the faucets open.
Drain the domestic water system.
2.
Position the water heater in the nal location.
3.
Connect the cold water supply piping.
Install piping onto cold inlet connection.
Connect to cold water supply connection using a union, a heat trap, a shut-off valve, an expansion tank (where
required), a back ow preventer (where required), and a lter (recommended to prevent sediment buildup).
4.
Connect the domestic hot water piping.
Install piping on to hot water supply connection using a union, a heat trap, a vacuum breaker, and a shut-off
valve.
5.
Pipe relief valve discharge so discharge from valve will exit only within 6 inches above, or at any distance
below, the structural oor, and cannot contact any live electrical part. Discharge opening must not be blocked or
reduced in size under any circumstances. Refer to local codes.
6.
Fill the water heater tank.
Open all faucets to allow air to purge from the tank and piping. Remove screens on faucets.
Open domestic hot water shut-off valve.
Open cold water inlet shut-off valve.
Purge all of the air from the domestic water system. Allow water to run so the tank is completely purged of any
debris. Run the water long enough to change at least ve tank volume changes. Close all faucets. Reinstall all of
the screens in the faucets.
Check the system for leaks. Repair as required using materials listed for potable water applications.
10
B. Water boiler piping. See Figures 2 and 3.
1.
Determine where the boiler, the space heating, and the water heater connections should be made based on the
type of piping system that is either in place, or is to be installed for a new hydronic system installation. See
Figure 2, Boiler Water Piping with Zone Circulators, and Figure 3, Boiler Water Piping with Zone Valves.
2.
It is recommended that 1” pipe and 1” zone valves be used on the water heater zone.
Zone Circulator System
For space heating systems that use Zone Circulators, refer to Figure 2. The water heater connection labeled
“BOILER SUPPLY” should be piped to the boiler supply piping after the air purger and before the space heating
takeoffs. Mount the water heater circulator as close as possible to the water heater, and make sure the ow
arrow points toward the water heater. The use of shut-off valves is recommended for future service convenience.
The water heater connection labeled “BOILER RETURN” should be piped to the boiler return piping as close to
the boiler as possible and after any ow control or check valves in the space heating return piping. The use of a
union and a shut-off valve is recommended. The use of a check valve is required to prevent back ow through
the water heater during operation of the space heating system.
Zone Valve System
For a space heating system that uses Zone Valves, refer to Figure 3. The water heater connection labeled
“BOILER SUPPLY” should be piped to the boiler supply piping after the air purger and before the space heating
circulator. Mount the water heater circulator as close as possible to the water heater, and make sure the
ow arrow points toward the water heater. The use of a shut-off valve is recommended for future service
convenience.
The water heater connection labeled “BOILER RETURN” should be piped to the boiler return piping as close to
the boiler as possible and after any ow control or check valves in the space heating return piping. The use of a
union and a shut-off valve is recommended. The use of a check valve is required to prevent back ow through
the water heater during operation of the space heating system.
Thermal expansion tank – Optional
Required if cold water line is equipped with a backow preventer or pressure reducing valve.
Water hammer arrester – Optional
Dishwashers, clothes washers, and fast-closing positive shutoff valves incorporated in the system all
contribute to creating water hammer. Install a water hammer arrester to prevent damage to pipes and appliances. See
control manufacturer's instructions for application and installation.
Unions
Use dielectric unions or couplings to protect hot and cold water ttings from corrosion when connecting dissimilar
materials such as copper and galvanized pipe.
Backow preventer – Optional
Required for Commonwealth of Massachusetts
Vacuum breaker – Optional
Required for Commonwealth of Massachusetts
Dieses Handbuch passt für folgende Modelle
16
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