ASTM F2022-00
(Test Method)Standard Test Method for Performance of Booster Heaters
Standard Test Method for Performance of Booster Heaters
SCOPE
1.1 This test method evaluates the energy efficiency, energy consumption and water heating performance of booster heaters. The food service operator can use this evaluation to select a booster heater and understand its energy consumption.
1.2 This test method is applicable to electric, gas, and steam powered booster heaters.
1.3 The booster heater can be evaluated with respect to the following (where applicable):
1.3.1 Energy input rate (9.2).
1.3.2 Pilot energy rate (9.3).
1.3.3 Flow capacity rate, energy rate, and energy efficiency with 110oF (43.3oC) and 140oF (60.0oC) supply to the booster heater inlet (9.4).
1.3.4 Thermostat calibration (9.5).
1.3.5 Energy rate and energy efficiency at 50% of flow capacity rate with 110oF (43.3oC) and 140oF (60.0oC) supply to the booster heater inlet (9.6).
1.3.6 Preheat energy and time (9.7). The preheat test is not applicable to booster heaters built without water storage and will not have auxiliary water storage connected to the booster heater to complete the water heating system.
1.3.7 Idle (standby) energy rate (9.8).
1.4 The values stated in inch-pound units are to be regarded as standard. The SI units in parentheses are for information only.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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An American National Standard
Designation: F 2022 – 00
Standard Test Method for
Performance of Booster Heaters
This standard is issued under the fixed designation F 2022; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope ANSI Z223.1-1996 National Fuel Gas Code
2.3 ASHRAE Handbook:
1.1 This test method evaluates the energy efficiency, energy
ASHRAE 1993 Fundamentals Handbook
consumption and water heating performance of booster heat-
2.4 ASHRAE Guideline:
ers. The food service operator can use this evaluation to select
ASHRAE Guideline 2-1986 (RA90) Engineering Analysis
a booster heater and understand its energy consumption.
of Experimental Data
1.2 This test method is applicable to electric, gas, and steam
2.5 NSF Standards:
powered booster heaters.
NSF Listing—Food Equipment and Related Components
1.3 The booster heater can be evaluated with respect to the
and Material
following (where applicable):
ANSI/NSF 3-1996 Commercial Spray-Type Dishwashing
1.3.1 Energy input rate (9.2).
Machines and Glasswashing Machines
1.3.2 Pilot energy rate (9.3).
ANSI/NSF 5-1992 Water Heaters, Hot Water Supply Boil-
1.3.3 Flow capacity rate, energy rate, and energy efficiency
ers, and Heat Recovery Equipment
with 110°F (43.3°C) and 140°F (60.0°C) supply to the booster
ANSI/NSF 26-1980 Pot, Pan, and Utensil Washers
heater inlet (9.4).
1.3.4 Thermostat calibration (9.5).
3. Terminology
1.3.5 Energy rate and energy efficiency at 50% of flow
3.1 Definitions:
capacity rate with 110°F (43.3°C) and 140°F (60.0°C) supply
3.1.1 booster heater, n—a water heater that raises the
to the booster heater inlet (9.6).
booster heater inlet water supply temperature (typically 110°F
1.3.6 Preheat energy and time (9.7). The preheat test is not
to 140°F (43.3°C to 60°C)) to 180°F (82.2°C) or more to
applicable to booster heaters built without water storage and
provide high temperature sanitizing rinse water for a dish-
will not have auxiliary water storage connected to the booster
washer machine.
heater to complete the water heating system.
3.1.2 dishwasher machine, n—(hereafterreferredtoasdish-
1.3.7 Idle (standby) energy rate (9.8).
washer) machine that uniformly washes, rinses, and heat
1.4 The values stated in inch-pound units are to be regarded
sanitizes eating and drinking utensils. The machine shall be
as standard. The SI units in parentheses are for information
capable of removing physical soil from properly racked and
only.
pre-scraped items, and sanitizing multi-use eating and drinking
1.5 This standard does not purport to address all of the
utensils.
safety concerns, if any, associated with its use. It is the
3.1.3 uncertainty, n—measure of systematic and precision
responsibility of the user of this standard to establish appro-
errors in specified instrumentation or measure of repeatability
priate safety and health practices and determine the applica-
of a reported test result.
bility of regulatory limitations prior to use.
3.2 Definitions of Terms Specific to This Standard:
2. Referenced Documents 3.2.1 batch water flow—intermittentmodeofwaterdelivery
2 at specified flow rate and elapse time. This is the typical style
2.1 ASTM Standards:
ofwaterdeliveryofaboosterheatersupplyingfinalrinsewater
D 3588 Practice for Calculating Heating Value, Compress-
to a door type dishwasher machine.
ibility Factor, and Relative Density of Gaseous Fuels
3.2.2 booster heater energy effıciency—quantity of energy
2.2 ANSI Standard:
imparted to the water while heating, expressed as a percentage
of total amount of energy consumed by the booster heater
1 during the capacity tests.
This test method is under the jurisdiction of ASTM Committee F26 on Food
Service Equipment and is the direct responsibility of Subcommittee D26.06 on
Productivity and Energy Protocol.
Current edition approved Sept. 10, 2000. Published December 2000. Available from the American Society of Heating, Refrigeration, and Air
Annual Book of ASTM Standards, Vol 05.06. Conditioning Engineers, Inc. 1791 Tullie Circle, NE, Atlanta, GA 30329.
3 nd 5
Available from theAmerican National Standard Institute (ANSI), 11 West 42 Available from NSF International, P.O. Box 130140, Ann Arbor, MI
Street, New York, New York 10036. 48113–0140.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F 2022
3.2.3 booster heater inlet—the point of connection on the 5. Significance and Use
booster heater for the water line from the primary supply to the
5.1 The energy input rate test is used to confirm that the
booster heater.
booster heater is operating properly prior to further testing.
3.2.4 booster heater outlet—the point of connection on the
5.2 Booster heater flow capacity is an indicator of the
booster heater for the water line from the booster heater to the
booster heater’s ability to supply hot water for sanitation. The
dishwasher.
booster heater’s flow capacity can be used by the operator to
3.2.5 continuous water flow—uninterrupted water delivery
determine the appropriate size booster heater for their opera-
by a booster heater at a specified flow rate. This is a typical
tion. Booster heater energy rate is an indicator of the booster
mode of water delivery of a booster heater supplying water to
heater’s energy consumption during continuous water flow.
a conveyor or rack-less conveyor (flight) type dishwasher
The energy rate can be used by food service operators to
machine.
estimate the energy consumption of the booster heater. Booster
3.2.6 energy rate—average rate of energy consumption
heater energy efficiency is a precise indicator of a booster
(Btu/h or kW, (kJ/h)) during the continuous flow tests.
heater’s energy performance during the continuous flow test.
3.2.7 energy input rate—peak rate at which a booster heater
This information enables the food service operator to consider
consumes energy (Btu/h or kW, (kJ/h)).
energy performance when selecting a booster heater.
3.2.8 flow capacity energy rate—peak rate at which a
5.3 Booster heater flow capacity at 50 % of the maximum
booster heater consumes energy (Btu/h or kW, (kJ/h)) during
capacity is an indicator of the booster heater’s ability to
the flow capacity tests. Refers to maximum energy rate while
provide hot water for sanitation at this reduce flow rate
maximum flow capacity rate is supplied.
condition. Booster heater energy efficiency at a flow rate of 50
3.2.9 flow capacity—maximum water flow rate (gal/min,
% of maximum capacity is an indicator of a booster heater’s
gal/h, (L/h)) at which the booster heater can heat water from a
energy performance at this flow rate. The booster heater outlet
specified inlet temperature to an outlet temperature of 183 6
temperature during the capacity test at a flow rate of 50 % of
3°F (83.9 6 1.7°) during the continuous flow capacity test.
maximum capacity is an indicator of the booster heater’s
3.2.10 pilot energy rate—average rate of energy consump-
temperature response at this reduced flow rate.
tion (Btu/h) by a booster heater’s continuous pilot (if appli-
5.4 Preheat energy and time can be useful to food service
cable).
operators to manage power demands and to know how quickly
3.2.11 primary supply—the service water heater system that
the booster heater can be ready for operation.
supplies water to the booster heater under test.
5.5 Idle energy rate and pilot energy rate can be used to
3.2.12 thermal effıciency, n—quantity of energy imparted to
estimate energy consumption during standby periods.
the water, expressed as a percentage of energy consumed by
the element(s), gas burner(s), steam coil(s), and steam injec-
6. Apparatus
tor(s) during the flow capacity tests. Thermal efficiency data is
collected during the continuous flow capacity tests.
6.1 Barometer, for measuring absolute atmospheric pres-
sure, to be used for adjustment of measured natural gas volume
4. Summary of Test Method
tostandardconditions.Shallhavearesolutionof0.2in.Hgand
an uncertainty of 0.2 in. Hg.
NOTE 1—An energy supply meeting the manufacturer’s specification
shall be provided for the gas, electric, or steam booster heater under test.
6.2 Exhaust Hood, (if applicable) some gas booster heaters
may require an exhaust hood for exhausting gas combustion
4.1 The booster heater under test is connected to the
products. Follow manufacturer’s venting specifications.
appropriate metered energy supply.The measured energy input
6.3 Flowmeter, for measuring total water consumption of
rate is determined and checked against the rated input before
the booster heater. Shall have a resolution of 0.01 gal (40 mL)
continuing with testing.
and an uncertainty of 0.01 gal (40 mL) at a flow rate as low as
4.2 Pilot energy rate is determined, when applicable, for gas
0.2 gpm (13 mL/s). Shall be designed to operate with water
booster heaters.
temperatures between 50°F to 195°F. The flowmeter shall be
4.3 Flow capacity, energy rate and energy efficiency of the
calibrated at both 110°F and 140°F booster heater inlet
booster for continuous water flow is determined with the
+0 +0 temperatures and their corresponding test flow rates and
booster heater inlet water supplied at 110 ⁄–3°F (43.3 ⁄–1.7
+0 +0 booster heater outlet temperatures.
°C) and 140 ⁄–3 °F (60.0 ⁄–1.7 °C).
6.4 Gas Meter, for measuring the gas consumption of the
4.4 Flow rate, energy rate and energy efficiency of the
booster heater (if applicable). Shall have a resolution of at least
booster for continuous water flow at 50% of flow capacity is
3 3
0.01 ft (0.0003 m ) and a maximum uncertainty no greater
determined with the booster heater inlet water supplied at 110
+0 +0 +0 +0
than1%ofthe measured value for any demand greater than
⁄–3 °F (43.3 ⁄–1.7 °C) and 140 ⁄–3 °F (60.0 ⁄–1.7°C).
3 3
2.2 ft /h (0.06 m /h). If the meter is used for measuring the gas
4.5 The preheat energy consumption and time and idle/
consumed by pilot lights, it shall have a resolution of at least
standby energy consumption rate are determined while the
3 3
0.01 ft (0.0003 m ) and have a maximum uncertainty no
booster heater is operating with the thermostat(s) set at the
greater than2%ofthe measured value.
calibrated setting(s) to deliver 183 6 3 °F at the booster heater
+0
outlet. The booster heater is supplied with 110 ⁄–3 °F (43.3 6.5 Insulation, for insulating all exterior fittings and plumb-
+0 +0 +0
⁄–1.7 °C) and 140 ⁄–3 °F (60.0 ⁄–1.7 °C) water at the booster ing. The insulation shall have a thermal insulation value (R
2 2
inlet. value) of at least 4 (h 3 ft 3 °F)/Btu (5.67 (m 3 °C)/W).
F 2022
6.6 Pressure Gage, for monitoring natural gas pressure. 6.17 Temperature and Pressure Relief Valve(s), sized to
Shall have a range of 0 to 10 in. H O, a resolution of 0.5 in. handle the maximum energy input of the booster heater with
H O, and a maximum uncertainty of1%ofthe measured automatic reset and capable of releasing at temperatures and
value. pressures above the booster heater maximum working condi-
6.7 Pressure Gage, for monitoring water pressure supplied tions. The relief valve can be integral with both temperature
and pressure relief capacity or separate valves for temperature
to and from the booster heater. The pressure gage on the
and pressure control.
downstream side of the booster heater shall have a range of 15
to 25 psi, a resolution of 61 psi, and a maximum uncertainty
6.18 HammerArrestor (ShockAbsorber), to eliminate water
of1%ofthe measured value. The pressure gage on the
hammer caused by the quick closing of the solenoid valve.
upstream side of the booster heater shall have a range of 0 to
6.19 Throttling Valve, to adjust the water flow rate (gal/min
200 psi, a resolution of 65 psi, and a maximum uncertainty of
and gal/h) from the booster heater. Maximum water flow
1 % of the measured value.
through throttling valve shall be large enough to accommodate
6.8 Stopwatch, with a 1-s resolution.
the largest water flow requirements of the booster heater.
6.9 Temperature Sensor, for measuring natural gas tempera-
Throttling valve shall be gate type or equivalent industry
ture in the range of 50°F to 100°F (10°C to 37.8°C), with a
standard. Valve shall be sized to booster heater manufacturer’s
resolution of 0.5°F (0.3°C) and an uncertainty of 61°F
pipe diameter specifications.
(0.6°C).
6.20 Primary Supply, water heating system capable of
6.10 ThermocoupleProbe,industrystandardTypeTorType
supplying water at each of the following temperature ranges of
+0 +0 +0 +0
K thermocouples capable of immersion with a range of 50°F to
110 ⁄–3°F (43.3 ⁄–1.7 °C) or 140 ⁄–3 °F (60.0 ⁄–1.7 °C) for
200°F (10°C to 93.3°C) and an uncertainty of 61°F.
all water flow rates required by the booster heater.
6.11 Watt-Hour Meter, for measuring the electrical energy
6.21 One Way Check Valve, water valve that allows water
consumption of a booster heater. Shall have a resolution of at
flow in one direction only. Valves to be installed in water lines
least 10 Wh and a maximum uncertainty no greater than 1.5 %
where flow should be directional.
of the measured value for any demand greater than 100 W. For
6.22 Platform Balance Scale, or appropriate load cells, used
any demand less than 100 W, the meter shall have a resolution
to measure the collected booster heater outlet discharge during
of at least 10 Wh and a maximum uncertainty no greater than
capacitytests.Shallhavethecapacitytoaccommodatethetotal
10 %.
weight of the water discharged during the test with resolution
6.12 Water Pressure Regulator, for controlling the water
of 0.2 lb (10 g) and an uncertainty of 0.2 lb (10 g) .
line pressure to and from the booster heater.Two regulators are
required. Adjustable within a range of 10 to 30 psi for the
7. Sampling, Test Units
regulator downstream of the booster heater. Adjustable within
7.1 Booster Heater— Select a representative model for
a range of 10 to 200 psi for the regulator upstream of the
performance testing.
booster heater.
6.13 Solenoid Valve, for regulating water flow from the
8. Preparation of Apparatus
booster heater. Sized to booster heater manufacturer’s pipe
diameter specifications.
8.1 Install the booster heater in accordance with the manu-
6.14 Tempering Valve or Equivalent Temperature Control
facturer’s instructions in a well ventilated area in compliance
Device, for regulating the temperature of the water being
with local codes or, in the absence of local codes, the National
supplied to the booster heater inlet. Tempering valve shall be
Fuel Gas Code, ANSI Z 223.1. A booste
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