Standard
Track updates
AS/NZS 3823.1.4:2012
[Current]Performance of electrical appliances — Airconditioners and heat pumps, Part 1.4: Multiple split-system airconditioners and air-to-air heat pumps — Testing and rating for performance (ISO 15042:2011, MOD)
Adopts ISO 15042:2011 to provide performance testing and rating criteria for factory-made residential, commercial and industrial, electrically driven, mechanical-compression, air-cooled airconditioners and air-to-air heat pumps, described as basic multi-split systems, modular multi-split systems and modular heat recovery multi-split systems.
Published: 13/11/2012
Pages: 98
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Airflow setting
5.1 General
5.2 Airflow setting for ducted indoor units
5.2.1 General
5.2.2 Airflow setting procedure for ducted indoor units
5.3 ESP for rating
5.3.1
5.3.2
5.3.3
5.3.4
5.3.5
5.4 Airflow setting for non-ducted indoor units measured by air-enthalpy method
5.4.1
5.4.2
5.5 Outdoor airflow
5.6 Unit supplied without indoor fan
6 Cooling tests
6.1 Cooling capacity test
6.1.1 General conditions
6.1.1.1
6.1.1.2
6.1.1.3
6.1.1.4
6.1.1.5
6.1.1.6
6.1.2 Temperature conditions
6.1.2.1
6.1.2.2
6.1.2.3
6.1.2.4
6.1.2.5
6.1.3 Test conditions
6.1.3.1 Preconditions
6.1.3.2 Testing requirements
6.1.3.3 Duration of test
6.2 Maximum cooling performance test
6.2.1 General conditions
6.2.2 Temperature conditions
6.2.3 Airflow conditions
6.2.4 Test conditions
6.2.4.1 Preconditions
6.2.4.2 Duration of test
6.2.5 Performance requirements
6.2.5.1
6.2.5.2
6.2.5.3
6.3 Minimum cooling test
6.3.1 General conditions
6.3.2 Temperature conditions
6.3.3 Airflow conditions
6.3.4 Test condition
6.3.4.1 Preconditions
6.3.4.2 Duration of test
6.3.5 Performance requirements
6.3.5.1
6.3.5.2
6.3.5.3
6.4 Freeze-up drip test (applies to non-ducted multi-splits)
6.4.1 General conditions
6.4.2 Temperature conditions
6.4.3 Airflow conditions
6.4.4 Test conditions
6.4.4.1 Preconditions
6.4.4.2 Duration of test
6.4.5 Performance requirements
6.5 Condensate control test and enclosure sweat test
6.5.1 General conditions
6.5.2 Temperature conditions
6.5.3 Airflow conditions
6.5.4 Test conditions
6.5.4.1 Preconditions
6.5.4.2 Duration of test
6.5.5 Performance requirements
6.5.5.1
6.5.5.2
7 Heating tests
7.1 Heating capacity tests
7.1.1 General conditions
7.1.1.1
7.1.1.2
7.1.1.3
7.1.1.4
7.1.1.5
7.1.1.6
7.1.2 Temperature conditions
7.1.2.1
7.1.2.2
7.1.2.3
7.1.2.4
7.1.3 Airflow conditions
7.1.3.1
7.1.3.2
7.1.3.3
7.1.3.4
7.1.3.5
7.1.4 Defrost operation
7.1.4.1
7.1.4.2
7.1.4.3
7.1.5 Test procedure — General
7.1.5.1
7.1.5.2
7.1.6 Preconditioning period
7.1.6.1
7.1.6.2
7.1.6.3
7.1.7 Equilibrium period
7.1.7.1
7.1.7.2
7.1.7.3
7.1.8 Data collection period
7.1.8.1
7.1.8.2
7.1.8.3
7.1.8.4
7.1.8.5
7.1.8.6
7.1.8.7
7.1.9 Test procedure when a defrost cycle (whether automatically or manually initiated) ends the preconditioning period (7.1.6)
7.1.9.1
7.1.9.2
7.1.10 Test procedure when a defrost cycle does not end the preconditioning period (7.1.6)
7.1.10.1
7.1.10.2
7.1.10.3
7.1.10.4
7.1.11 Test procedure for transient tests
7.1.11.1
7.1.11.2
7.1.11.3
7.1.11.4
7.1.11.5
7.1.11.6
7.1.11.7
7.1.12 Heating capacity test results
7.1.12.1
7.1.12.2
7.2 Maximum heating performance test
7.2.1 General conditions
7.2.2 Temperature conditions
7.2.3 Airflow conditions
7.2.4 Test conditions
7.2.4.1 Preconditions
7.2.4.2 Duration of test
7.2.4.3
7.2.4.4
7.2.4.5
7.3 Minimum heating performance test
7.3.1 General conditions
7.3.2 Temperature conditions
7.3.3 Airflow conditions
7.3.4 Test conditions
7.3.4.1 Preconditions
7.3.4.2 Duration of test
7.3.5 Performance requirements
7.4 Automatic defrost test
7.4.1 General conditions
7.4.2 Temperature conditions
7.4.3 Airflow conditions
7.4.4 Test conditions
7.4.4.1 Preconditions
7.4.4.2 Duration of test
7.4.5 Performance requirements
8 Heat recovery test
8.1 Heat recovery capacity ratings
8.1.1 General conditions
8.1.1.1
8.1.1.2
8.1.1.3
8.1.2 Temperature conditions
9 Test methods and uncertainties of measurement
9.1 Test methods
9.1.1 General
9.1.2 Calorimeter test method
9.1.2.1
9.1.2.2
9.1.2.3
9.1.3 Indoor air enthalpy method
9.1.3.1
9.1.3.2
9.2 Uncertainty of measurement
9.2.1
9.2.2
9.2.3
9.2.4
9.3 Test tolerances for the capacity tests
9.3.1
9.3.2
9.3.3
9.4 Test tolerances for performance tests
10 Test results
10.1 Capacity calculations
10.1.1 General
10.1.2 Adjustments
10.1.3 Cooling capacity calculations
10.1.3.1
10.1.3.2
10.1.3.3
10.1.4 Heating capacity calculations
10.1.4.1 Steady-state capacity calculations
10.1.4.1.1
10.1.4.1.2
10.1.4.1.3
10.1.4.2 Transient capacity tests
10.1.4.2.1
10.1.4.2.2
10.1.4.2.3
10.1.4.2.4
10.1.5 Power input of fans
10.2 Data to be recorded
10.3 Test report
10.3.1 General information
10.3.2 Rating test results
10.3.3 Performance tests
11 Marking provisions
11.1 Nameplate requirements
11.2 Nameplate information
11.3 Additional information
12 Publication of ratings
12.1 Standard ratings
12.1.1
12.1.2
12.1.3
12.1.4
12.2 Other ratings
Annex A
A.1 General
A.2 Test method
A.2.1
A.2.2
A.2.3
A.3 Fixed duct resistance method
A.3.1 General
A.3.2 Test procedure
A.3.2.1 Test conditions
A.3.2.2 Blowing test
A.3.2.3 Evaluation
A.3.2.4 Cooling and heating tests
A.4 Adjusted exhaust fan setting method
A.4.1 Test procedure
A.4.2 Blowing test
A.4.3 Calculation of the value of C
A.4.4 Evaluation
A.4.5 Cooling and heating tests
A.5 Unit without indoor fan
Annex B
B.1 General test room requirements
B.1.1
B.1.2
B.1.3
B.2 Equipment installation
B.2.1
B.2.2
B.2.3
B.2.4
B.2.5
B.3 Static pressure measurements across indoor coil
B.3.1 Equipment with a fan and a single outlet
B.3.1.1
B.3.1.2
B.3.2 Equipment with fans and multiple outlets or multiple indoor units
B.3.2.1
B.3.2.2
B.3.3 Equipment without a fan and a single outlet
Annex C
C.1 Airflow determination
C.1.1
C.1.2
C.2 Airflow and static pressure
C.3 Nozzle apparatus
C.3.1
C.3.2
C.3.3
C.3.4
C.3.5 Means for determining the air density at the nozzle throat
C.3.5.1
C.3.5.2
C.3.5.3
C.3.5.4
C.4 Static pressure measurements
C.4.1
C.4.2
C.5 Discharge airflow measurements
C.5.1
C.5.2
C.6 Indoor-side airflow measurements
C.6.1
C.6.2
C.6.3
C.7 Ventilation, exhaust and leakage airflow measurements — Calorimeter test method
C.7.1
C.7.2
C.7.3
Annex D
D.1 General
D.1.1
D.1.2
D.1.3
D.1.4
D.1.5
D.1.6
D.1.7
D.1.8
D.1.9
D.1.10
D.1.11
D.2 Calibrated room-type calorimeter
D.2.1
D.2.2
D.2.3
D.2.4
D.3 Balanced ambient room-type calorimeter
D.3.1
D.3.2
D.3.3
D.3.4
D.4 Calculations for cooling capacities
D.4.1
D.4.2
D.4.3
D.4.4
D.4.5
D.4.6
D.4.7
D.4.8
D.4.9
D.4.10
D.5 Calculation of heating capacity
D.5.1
D.5.2
D.5.3
Annex E
E.1 General
E.2 Application
E.2.1
E.2.2
E.2.3
E.3 Calculations for cooling capacities
E.4 Calculations for heating capacities
E.5 Airflow enthalpy measurements
E.5.1 Tunnel air enthalpy method
E.5.2 Loop air enthalpy method
E.6 Calorimeter air enthalpy method
Annex F
F.1 General
F.2 Temperature conditions
F.3 Airflow conditions
F.4 Test conditions
F.5 Selection of units
F.6 Test methods and uncertainty of measurement
F.7 Test results
F.8 Published ratings
Annex G
G.1 General
G.2 The calorimeter method
G.3 The air enthalpy method
G.3.1
G.3.2
G.4 Temperature conditions
G.5 Airflow conditions
G.6 Test conditions
G.7 Test methods and uncertainty of measurement
G.8 Test results
G.9 Published ratings
Annex H
H.1 General
H.2 Three-room calorimeter method
H.2.1
H.2.2
H.2.3
H.3 Three-room air enthalpy method
H.3.1
H.3.2
H.4 Two-room air enthalpy method
H.4.1
H.4.2
H.5 Test results
H.6 Published ratings
Annex I
I.1 General description
I.1.1
I.1.2
I.1.3
I.2 Measurement of refrigerant properties
I.2.1
I.2.2
I.2.3
I.2.4
I.2.5
I.2.6
I.3 Compressor calibration
I.3.1
I.3.2
I.3.3
I.3.4
I.3.5
I.4 Direct heating capacity measurements
I.4.1
I.4.2
I.4.3
I.4.4
I.4.5
I.5 Calculations for cooling capacities
I.5.1
I.5.2
I.6 Calculations for heating capacities
Annex J
J.1 General
J.1.1
J.1.2
J.1.3
J.2 Refrigerant flow method
J.2.1
J.2.2
J.2.3
J.3 Refrigerant temperature and pressure measurements
J.4 Calculation of cooling capacity
J.5 Calculation of heating capacity
Annex K
K.1 General
K.1.1
K.1.2
K.2 Test room requirements
K.2.1
K.2.2
K.2.3
K.3 Testing conditions
K.4 Calculations
K.4.1
K.4.2
K.4.3
Annex L
L.1 General
L.1.1
L.1.2
L.2 Test room requirements
L.3 Measurement
L.3.1
L.3.2
Annex M
M.1 General
M.1.1
M.1.2
M.2 Test room requirements
M.3 Measurement
M.3.1
M.3.2
Annex N
N.1 General
N.1.1
N.1.2
N.1.3
N.2 Measurement
N.2.1
N.2.2
N.2.3
Annex O
O.1 General
O.2 Calculations
O.2.1
O.2.2
Annex P
P.1 General
P.1.1
P.1.2
P.2 Indoor coil installation: static pressure measurements
P.2.1
P.2.2
P.3 Indoor-side air quantity
P.3.1
P.3.2
P.4 Capacity adjustments
Annex Q
Q.1 General
Q.2 Procedure flowchart for heating capacity test
Bibliography
Appendix ZZ
Cited references in this standard
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