Carrier 38ZS/ZF Installation, Operation And Maintenance Instructions page 12

7 - CHECKING BEFORE COMMISSIONING
Connection chart with electronic control CARRIERrtc (optional)
NTC ambient T probe (std) or
RS485 ambient T+RH probe (opt.)
TCO user terminal (optional)
Remote on/off (optional)
Main failure signal (optional)
Outdoor RH probe (optional)
CO air quality probe (optional)
2
No
1 Power supply
2 pGD1 terminal connection
3 Ambient T probe (std) or RS485 ambient T+RH (opt.)
4 Indoor fan power supply
5 Thermal relay signal of the indoor fan
6 Outlet temperature probe
7
Return or ambient temperature probe (optional)
11 Clogged fi lters detector (optional)
12 Air fl ow control (optional)
13 Unit without neutral (std), soft starter and/or smoke detector (opts)
14 HWC 24 Vac signal (optional)
15 HWC valve (optional)
16
Electrical heaters (optional)
17 Safety thermistors of electrical heaters (optional)
18 Smoke detector (optional)
21
Mixing temperature probe (optional)
22
Mixing box servomotors power supply (optional)
23
Return fan power supply (optional)
24
Thermal relay signal of the return fan (optional)
31
TCO user terminal connection (optional)
32 Remote on/off (optional)
33 Main failure signal (optional)
34 Outdoor RH probe (optional)
35 CO air quality probe (optional)
2

 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.
12
Outdoor unit 38ZS/ZF
1
Power supply
2
pGD1 terminal
3
31
32
33
34
35
38ZS/ZF
400 III (±10%)







4
Indoor fan power supply
5
Indoor fan thermal protection
6 Supply T probe
7 Return T probe
11
Clogged filter detector (opt.)
12
Air flow control (opt.)
13 Unit without neutral and/or
starter and/or smoke det. (opt.)
14
HWC 24Vac signal (opt.)
15
HWC valve (opt.)
16
Electrical heaters (opt.)
17 Electrical heaters safety (opt.)
18 Smoke detector (opt.)
7 Return T probe
21 Mixing T probe (opt.)
22 Mixing box servomotors (opt.)
23 Return fan power supply (opt.)
24
Return fan thermal protection (opt.)
90 100 120 160 180 182 200 240 320 360 420 485 540 600
telephone cable 6 wires standard (RJ12 connector)
2 wires (centrifugal fan) or 3 wires (plug-fan)
2 wires for power supply 230V + 1 shielded cable for communication type AGW20 / 22
(1 braided pair + drainwire + shielding)
Expansion
exchager device
(connected on-site)
3 + GND
2 wires (std) / 5 wires (RS485)
3 + GND
2 wires
2 wires
2 wires
2 wires
1 wire
2 wires
1 wire
3 wires (per stage) + GND
2 wires
2 wires
2 wires
3 wires
3 + GND
2 wires
2 wires
2 wires
3 wires
3 wires
Mixing
box
(optional)