Operating limits ....................................32 OPTIONS AND ACCESSORIES ..............................32 Hot water heating coil ..................................32 Electric resistance heaters .................................. 33 GENERAL MAINTENANCE ............................... 34 SERVICE ......................................34 TRANSFORMATION TO SPLIT SYSTEM (50VZ/PZ units) ....................35 FINAL RECOMMENDATIONS ..............................35 TROUBLESHOOTING CHART ..............................36...
Optional discharge Transport skid Power connection 38VZ/PZ 015 Optional discharge Cable inlet Transport skid Drain 3/4" gas 40PZ 015 Optional discharge Cable inlet Transport skid Drain When designing an installation, always use up-to-date drawings, available from your local Carrier office...
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Optional discharge Transport skid Power connection 38VZ/PZ 025 Optional discharge Cable inlet Transport skid Drain 3/4" gas 40PZ 025 Optional discharge Cable inlet Transport skid Drain When designing an installation, always use up-to-date drawings, available from your local Carrier office...
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50VZ/PZ 030 Transport skid Power connection 38VZ/PZ 030 Optional discharge Cable inlet Transport skid Drain 3/4" gas 40PZ 030 Optional discharge Cable inlet Transport skid Drain When designing an installation, always use up-to-date drawings, available from your local Carrier office...
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Optional discharge Transport skid Power connection 38VZ/PZ 031 Optional discharge Cable inlet Transport skid Drain 3/4" gas 40PZ 031 Optional discharge Cable inlet Transport skid Drain When designing an installation, always use up-to-date drawings, available from your local Carrier office...
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Optional discharge Transport skid Power connection 38VZ/PZ 040 Optional discharge Cable inlet Transport skid Drain 3/4" gas 40PZ 040 Optional discharge Cable inlet Transport skid Drain When designing an installation, always use up-to-date drawings, available from your local Carrier office...
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Optional discharge Transport skid Power connection 38VZ/PZ 045-055 Optional discharge Cable inlet Transport skid Drain 3/4" gas 40PZ 045-055 Optional discharge Cable inlet Transport skid Drain When designing an installation, always use up-to-date drawings, available from your local Carrier office...
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Optional discharge Transport skid Power connection 38VZ/PZ 065-075 Optional discharge Cable inlet Transport skid Drain 3/4" gas 40PZ 065-075 Optional discharge Cable inlet Transport skid Drain When designing an installation, always use up-to-date drawings, available from your local Carrier office...
Fig. 8 - Service area, mm 50VZ/PZ 38VZ/PZ 40PZ Service space behind the unit depends on whether or not the unit is installed with outdoor air ducts. It is also necessary to leave space for cleaning and inspection of the outdoor heat exchanger.
Fig. 9 - Centre of gravity, mm (approx.) 50VZ/PZ (all sizes) 50VZ/PZ 1116 1122 1324 1359 1 1 1 1 1 Measured from point Fig. 10 - Centre of gravity, mm (approx.) 38VZ/PZ (all sizes) 1 1 1 1 1...
Fig. 12 - Weight distribution, kg (approx.) 50VZ/PZ (all sizes) Support 50VZ points Support 50PZ points Control box Fig. 13 - Weight distribution, kg (approx.) 38VZ/PZ (all sizes) Support 38VZ points Support 38PZ points Control box Fig. 14 - Weight distribution, kg (approx.)
Indoor air discharge (50VZ/PZ) Indoor air discharge (40PZ) The 50VZ/PZ units leave the factory with the indoor unit air The 40PZ units leave the factory with the air discharge set to discharge set to vertical, as indicated in the dimensional figures. It horizontal, as indicated in the dimensional figures.
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U-bracket Blanking plate Fan supply air ducts Drive belt(s) Fan pulley Fig. 16 - Repositioning unit air discharge (50VZ/PZ 015, 045, 055, 065, 075 40PZ 015, 045, 055, 065, 075) Front view Rear view Legend Side access panel Rear discharge panel...
Fan performance 50VZ/PZ 015 indoor fan (40PZ 015) standard 50VZ/PZ 015 indoor fan (40PZ 015) optional larger transmission transmission Air flow, l/s Air flow, l/s 50VZ/PZ 015 outdoor fan (38VZ/PZ 015) standard transmission Air flow, l/s Indoor fan Outdoor fan...
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Fan performance 50VZ/PZ 025 indoor fan (40PZ 025) standard 50VZ/PZ 025 indoor fan (40PZ 025) optional larger transmission transmission Air flow, l/s Air flow, l/s 50VZ/PZ 025 outdoor fan (38VZ/PZ 025) standard 50VZ/PZ 025 outdoor fan (38PV/PZ 025) optional transmission...
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Fan performance 50VZ/PZ 030/031 indoor fan (40PZ 030/031) standard 50VZ/PZ 030/031 indoor fan (40PZ 030/031) optional transmission larger transmission Air flow, l/s Air flow, l/s 50VZ/PZ 030/031 outdoor fan (38VZ/PZ 030/031) 50VZ/PZ 030/031 outdoor fan (38PV/PZ 030/031) standard transmission optional larger transmission...
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Fan performance 50VZ/PZ 040 indoor fan (40PZ 040) standard 50VZ/PZ 040 indoor fan (40PZ 040) optional larger transmission transmission Air flow, l/s Air flow, l/s 50VZ/PZ 040 outdoor fan (38VZ/PZ 040) standard 50VZ/PZ 040 outdoor fan (38PV/PZ 040) optional transmission...
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Fan performance 50VZ/PZ 045 indoor fan (40PZ 045) standard 50VZ/PZ 045 indoor fan (40PZ 045) optional larger transmission transmission Air flow, l/s Air flow, l/s 50VZ/PZ 045 outdoor fan (38VZ/PZ 045) standard 50VZ/PZ 045 outdoor fan (38PV/PZ 045) optional transmission...
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Fan performance 50VZ/PZ 055 indoor fan (40PZ 055) standard 50VZ/PZ 055 indoor fan (40PZ 055) optional larger transmission transmission Air flow, l/s Air flow, l/s 50VZ/PZ 055 outdoor fan (38VZ/PZ 055) standard 50VZ/PZ 055 outdoor fan (38PV/PZ 055) optional transmission...
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Fan performance 50VZ/PZ 065 indoor fan (40PZ 065) standard 50VZ/PZ 065 indoor fan (40PZ 065) optional larger transmission transmission Air flow, l/s Air flow, l/s 50VZ/PZ 065 outdoor fan (38VZ/PZ 065) standard 50VZ/PZ 065 outdoor fan (38PV/PZ 065) optional transmission...
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Fan performance 50VZ/PZ 075 indoor fan (40PZ 075) standard 50VZ/PZ 075 indoor fan (40PZ 075) optional larger transmission transmission Air flow, l/s Air flow, l/s 50VZ/PZ 075 outdoor fan (38VZ/PZ 075) standard 50VZ/PZ 075 outdoor fan (38PV/PZ 075) optional transmission...
Follow all safety codes. Wear safety glasses and work gloves. Use a quenching cloth for unbrazing operations. Fig. 17 - Rigging (50VZ/PZ) WARNING: Before performing service or maintenance operations on the unit, turn off the main power switch to the unit.
NOTE: All duct sizing and design work should be carried out by qualified technicians. Condensate drainage 50VZ/PZ and 38VZ/PZ units The indoor unit evacuates condensate water via the condensate pan of the outdoor heat exchanger (38VZ/PZ) which incor- porates two male ø 3/4" gas drain connections, one for each side of the unit.
VERY MPORTANT: The installer must protect the unit power Route all cables through the conduits incorporated in the unit supply line with automatic disconnect devices, a thermal- (50VZ/PZ or 38VZ/PZ) to the main disconnect switch terminals magnetic switch and a differential disconnect switch, suitable (see wiring diagram).
General Voltage at 24 V AC When designing refrigerant lines the following must be kept in mind: 50VZ units standard connections: Connection to 24 V Depending on the unit arrangement: Protection device indication Common 24 V Fig.
Fig. 25 - Discharge line For both option A (Figure 22) and option B (Figure 23) the following conditions should be observed: The maximum speed permitted in any line is 15 m/s. Suction line must be insulated and have a 2% slope towards the compressor and the horizontal pipe run.
Gas tightness testing and dehydration With the unit in operation, ensure that the values shown on the 50VZ/PZ units are shipped fully charged with refrigerant R-407C high and low pressure gauges are within the normal limits. It is ready for operation. If, when the unit is run, symptoms of loss...
Table 7 - Heat pump operation Remove the gas from the refrigerant circuit using recovery equipment to avoid harming the atmosphere. Electrically disconnect the compressor. Zone Air temperature Dry bulb Wet bulb Unbraze or unscrew the suction and discharge lines, Indoor taking care not to damage the rest of the components.
Electric resistance heaters Installation The standard installation of the water heating coil is made by positioning the connection manifolds on the same side as the This option/accessory consists of a frame with shielded electric motor of the evaporator unit. If necessary, it can be connected heaters and a control box, incorporated in the same frame, with to the opposite side.
GENERAL MAINTENANCE SERVICE ATTENTION: Before starting any servicing or maintenance Indoor fan air adjustment operation on the unit, make sure that the power supply has been disconnected. A current discharge could cause personal injury. The drive is factory set in accordance with the tables on pages 18-25.
Fig. 29 - To align fan and motor pulleys Transformation to split system (50VZ/PZ units) All units can be changed from a packaged to a split system, as described below: Disconnect the unit from the power supply. Remove the compressor access panel(s) and the indoor unit access panel(s).
TROUBLESHOOTING CHART A list of possible faults, as well as the probable cause and suggested solutions is shown in Table 12. In the event of a unit malfunction it is recommended to disconnect the power supply and ascertain the cause. Table 12 - Troubleshooting chart Symptoms Cause...
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