9
Matrix Mono
8
4.2 Matrix Leaving Water Temperature (LWT) Selecon
The recommended design LTW ranges for different types of heat emier are:
§ For floor heang: 30 to 35⁰C
§ For fan coil units: 30 to 45⁰C
§ For low temperature radiators: 40 to 50⁰C
4.3 Opmizing System Design
To get the most comfort with the lowest energy consumpon with Matrix , it is important to take account of the
following consideraons:
§ Choose heat emiers that allow the heat pump sy
st
em to operate at as low a hot water temperature as possible
whilst sll providing sufficient heang.
§ Make sure the correct weather dependency curve is selected to match the installaon environment (building
structure, climate) as well as ender user’s demands.
§ Connecng room thermostats (field supplied) to the hydronic system helps prevent excessive space heang by
stopping the outdoor unit and circulator pump when the room temperature is above the thermostat set p
oi
nt.
4.4 Tank back up heater noce
Heat pump will stop when T5(tank temperature) has reached the minimum of both T5S(tank seng temperature) and
T5stop (highest tank temperature which can be reached under certain ambient temperature with heat pump only) and
lasted for 5s. The value of T5stop is shown as below.
If T5S is higher than T5stop, then T5S can not be reached with heat pump only. In this case, tank back up heater is needed
in order to reach T5S.
T5
stop value:
Ambient temperature(℃)
< -20 -20~15 -15~-10 -10~-5 -5~0 0~5 5~10
T5stop(℃)
35 40 45 48 52 55 56
Ambient temperature(℃)
10~15 15~20 20~25 25~30 35~40 40~65 40~65
T5stop(℃)
57 56 55 52 50 48 45
Part 1 - General Informaon
5 Typical Applicaons
5.1 Applicaon 1
Figure 1-5.1: Applicaon 1
Legend
1 Outdoor unit 14 Domesc hot water tank (Field supply)
3 User interface 14.1 TBH: Domesc hot water tank booster heater (Field supply)
4 SV1:3-way valve (Field supply) 14.2 Coil 1, heat exchanger for heat pump
5 Balance tank (Field supply) 14.3 Coil 2, heat exchanger for Solar energy
5.1 Automac bleed valve 15 Filter (Accessory)
5.2 Drainage valve 16 Check valve (Field supply)
5.3
Tbt1: Balance tank upper temperature sensor
(Oponal)
17 Shut-off valve (Field supply)
6 P_o: Zone A circulaon pump (Field supply) 18 Filling valve (Field supply)
9 P_s: Solar pump (Field supply) 19 Drainage valve (Field supply)
9.1 Tsolar: Solar temperature sensor (Oponal) 20 Tap water inlet pipe (Field supply)
9.2 Solar panel (Field supply) 21 Hot water tap (Field supply)
10 P_d: DHW pipe pump (Field supply) 23 Collector/distributor (Field supply)
11
T5: Domesc water tank temperature sensor
(Accessory)
24 Bypass valve (Field supply)
12 T1: Water flow temperature sensor (Oponal) FHL1…n Floor heang loop (Field supply)
13 Expansion vessel (Field supply) AHS Auxiliary heat source (Field supply)
Notes:
1. The example is just for applicaon illustraon; please confirm the exact installaon method according to the installaon manual.
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