references
Split refrigeration units and heat pumps
RECOMMENDATIONS
Outdoor unit top
FOR THE COOLING CONNECTION
Outdoor unit bottom
Maximum equivalent length of the cooling line: 7 metres
Maximum equivalent length of the cooling line: 50 metres For longer lenghts an oil separator must be user
SP outdoor unit
Maximum geometric height 40 m
L: liquid line G: gas line Siphon in gas line for every 3 metres of drop
L: liquid line G: gas line Siphon in gas line for every 3 metres of drop
CP indoor unit SP outdoor unit
L G
G L
CP indoor unit
ELECTRICAL
CONNECTIONS
Outdoor unit SP Indoor unit CP
1 2 pGD1 maintenance terminal (opt.) 31 Remote on/off (opt.) 32 Main failure signal (opt.) 33
TCO user terminal
Power supply
4 Indoor fan power supply 5 Indoor fan thermal protection 6 Outlet T probe 7 Return or ambient T probe (opt.) 11 Clogged filter detector (opt.) 12 Air flow control (opt.) 13 Without neutral (std) and/or starter(opt.) 14 HWC 24Vac signal (opt.) 15 HWC valve (opt.) 16 Electrical heaters (opt.) 17 Electrical heaters safety (opt.)
No. 1 2 4 5 6 7 11 12 13 14 15 16 17 31 32 33
SP Power supply TCO user terminal connection Indoor fan power supply Thermal relay signal of the indoor fan Outlet temperature probe Return or ambient temperature probe (optional) Unit without neutral (std) and/or soft starter (opt.) HWC 24 Vac signal (optional) HWC valve (optional) Electrical heaters (optional) Safety thermistors of electrical heaters (optional) pGD1 maintenace terminal connection (optional) Remote on/off (optional) Main failure signal (optional) 400 III (±10%)
90
100
120
160
182
200
Maximum height 6 m
240
280
320
360
3 + GND 2 wires for power supply 230V + 1 shielded cable for communication type AGW20 / 22 (1 braided pair + drainwire + shielding) 3 + GND 2 wires 2 wires 2 wires 2 wires 2 wires 1 wire 2 wires 1 wire 3 wires (per stage) + GND 2 wires telephone cable 6 wires standard (RJ12 connector) 2 wires 2 wires
If the unit is going to be installed in an industrial environment with a high level of electromagnetic interference, it is recommended to shield the cables of the thermostat control. In indoor units with the optional mixing box, these connections are realized directly between the outdoor unit and the terminal board of the box mentioned. The power supply for the electrical heater must be protected by an automatic switch and/or fuses to be foreseen by the installer.
For other regulation or with mixing box, please check technical documentation
HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA 17.01 A
581
AIRDUO NEXIA SP/CP - SP/CK