BS EN 16147:2017 download free.Heat pumps driven comp performance requirements domestic hot with electrically ressors Testing, rating and for marking of water units.
heating energy efficiency of air/water, brine/water, water/water and direct exchange/water heat pump water heaters and heat pump combination heaters with electrically driven compressors and connected to or including a domestic hot water storage tank for domestic hot water production.
BS EN 16147 comprises only the testing procedure for the domestic hot water production of the heat pump system.
NOTE 1 Testing procedures for simultaneous operation [or domestic hot water production and space heating are not treated in BS EN 16147. Simultaneous means that domestic hot water production and space heating generation occur at the same time and may interact.
NOTE 2 For heat pump combination heaters the seasonal efficiency of space heating is determined according to
EN 14825.
BS EN 16147 only applies to water heaters which are supplied in a package of heat pump and storage tank In the case of water heaters consisting of several parts with refrigerant connections, BS EN 16147 applies only to those designed and supplied as a complete package.
BS EN 16147 does not spedf requirements of the quality of the used water.
2 Normative references
The following documents, in whole or in part, are normatively referenced in BS EN 16147 and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (Including any amendments) applies.
EN 14511-1, Air conditioners, liquid chilling packages and heat pumps with electrically driven compressorsforspace heating and cooling – Part 1: Terms, definitions and classification
EN 14511-2, Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling – Part 2: Test conditions
EN 14511-3, Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling – Part 3: Test methods
Any direct heat radiation (e.g. solar radiation) onto heating units in the test room onto the heat pump or onto the temperature measuring points shall be avoided.
5.3 Installation and connection of the heat pump
The heat pump shall be installed and connected for the test as recommended by the manufacturer in his installation and operation manual. The accessories provided by option (for example heating element) are not included in the test.
Temperature and pressure measuring points shall be arranged in order to obtain significant mean values.
5.4 Installation of heat pumps consisting of several parts
In the case of heat pumps consisting of several refrigeration parts (split heat pumps) the following installation conditions shall be complied with for the tests:
a) each refrigerant line shall be installed in accordance with the manufacturer’s instructions; the length of each line shall be between 5 m and 7,5 m;
b) the lines shall be installed so that the difference in elevation does not exceed 2,5 m;
c) thermal insulation shall be applied to the lines in accordance with the manufacturer’s instructions;
d) unless constrained by the design at least half of the interconnecting lines shall be exposed to the outdoor conditions with the rest of the lines exposed to the indoor conditions.
For the test of direct exchange ground coupled heat PUP5 requirement d) is not valid.
For indirect systems where the heat pump is separated from the tank, water or brine connections to the tank shall be installed in accordance with the manufacturer’s instructions to the maximum stated length or 5 m, whichever is shorter. Piping shall be Installed according to d) and with as few bends as possible and insulated according to c).
6.3 Setting the external static pressure difference for ducted air source units
The volume flow and the pressure difference shall be related to standard air and with dry heat exchanger. If the air flow rate is given by the manufacturer with no atmospheric pressure, temperature and humidity conditions, it shall be considered as given for standard air conditions.
The air flow rate as stated in the installation and operating instructions shall be converted into standard air conditions. The air flow rate setting shall be made when the fan only is operating.
The resulting standard air flow rate shall be set and the resulting external static pressure (ESP) measured.
If the ESP is lower than 30 Pa, the air flow rate is decreased to reach this minimum value. The apparatus used for setting the ESP shall be maintained in the same position during all the tests.
If the installation and operating instructions state that the maximum allowable duct length is for inlet and outlet together less than 2 m, then the unit shall be tested with its duct length but as a non-ducted unit; therefore the ESP is considered equal to 0 Pa
6.4 Setting the difference of temperature for heat pumps using a liquid as heat source For heat pump water heater using liquid (water or brine) as heat source, the nominal liquid flow rate as specified in the operation and installation instructions shall be set with the Inlet liquid temperature as given in Table 4.
For heat pump combination heater, the liquid flow rate as specified for space heating operation at
standard rating conditions at medium temperature application (47 °C/55 °C) according to EN 14511-2
and EN 14511-3 shall be set with the inlet liquid temperature as given in Table 4.
6.5 Test conditions
6.5.1 General test conditions
The tests shall be carried out at the relevant test conditions specified in Table 3 and Table 4.
For heat pumps using ventilation exhaust air as heat source, the air flow rate shall be set as specified by the manufacturer but shall not exceed the maximum values given in Table 5.
Permissible deviations shall not exceed the values specified in Table 2. In addition the maximal permissible deviation of thermal energy for the complete load profile shall be 5 %.
7.11.2.4 Filling and heat-up
STEP 2 of Figure 3: The product shall be fully filled with cold water. The step consists in heating up the storage quantity of water from this initial state until the first time the compressor is switched off by the thermostat sensing the water temperature in the tank.
7.11.2.5 Stabilization before reference period
STEP 3 of Figure 3: keep the product operating without draw-otis during at least 12 h. This stage ends – and next stage starts – at the first thermostat cut-out after 12 h.
7.11.2.6 Reference period
STEP 4/5 of Figure 3: This test period allows consumer behaviour learning and measuring energy consumption with smart control activation.
STEP 4/5 can last 7 or 14 days (1 or 2 weeks); the manufacturer will decide to use one or two weeks procedure and the product will be tested accordingly.
The load profiles for the first 5 days of test will be chosen randomly by the lab between the Load Profile, declared by the manufacturer for the product (WHL, Water Heater Load), and the immediately lower Load Profile (WHL-1). It means five water heater loads shall be defined (e.g. three WHL” and two ‘WHL-1) and the lab can decide to use them randomly (e.g. WHL = M — MMMSS. SSMMM. MSMSM, …). In the case that WHL is the smallest Load Profile 3XS, the product shall be tested using only the Load Profile WHL (i.e. 3XS) for all five days.
The 6th and 7th days of test there will be no tapping. An example is given in Table 6.