Technibel PMHRV Series Owner's manual

1
TECHNICAL INSTRUCTIONS
May 2005 10 12 133 - GB - 04
PMHRV
AIR COOLED WATER CHILLER HEAT PUMP
40 to 67 kW
PMHRV 2044
PMHRV 2050
PMHRV 2064
PMHRV 2072
CMHGV cooling only model also available

2
APPLIANCES FILLED WITH R 407 C
R 407 C
•Fluid R 407 C, as opposed to R22, is not a pure fluid but a blend composed of:
-23% R 32 + 25% R 125 + 52% R 134 A.
•The compressors approved for operation with this fluid are filled beforehand with polyalcohol oil.
Contrary to mineral oil, it is very hygroscopic: it absorbs the humidity of the ambient air very quickly. This can modify
its lubricant properties and lead in time to the destruction of the compressor.
MAINTENANCE INSTRUCTIONS
1-Never add oil to the appliance; the compressor is filled with polyalcohol oil, a special oil which cannot tolerate the
presence of other oils.
2-The instruments used for:
-filling,
-pressure measurements,
-emptying under vacuum,
-recovering the fluid,
must be compatible and only used for the R 407 C fluid.
3-The weight of the refrigerant contained in the storage bottle must be checked constantly. Do not use it from the
moment the remaining weight is less than 10% of the total weight.
4-In the case of a new charge:
-do not use the charging cylinder,
-use a balance and a dip pipe type R 407 C cylinder,
-charge the weight of R 407 C as per the value indicated on the unit’s identification plate,
-IMPORTANT: see instruction 3 above.
5-The charge must be undertaken in liquid phase.
6-Incaseofleakage,donotcompletethecharge: recovertheremainingrefrigerantforrecyclingandperform
a total charge.
Recovery,recyclingorthedestructionof the fluidmustbe done incompliancewith the lawsinforce in thecountry
concerned.
7-If the refrigerant circuit is opened, you must:
-avoid the entry of air into the circuit as much as possible,
-replace the filter drier,
-perform the "vacuum operation" at a minimum level of 0.3 mbar (static).
MARKING
This product marked conforms to the essential requirements of the Directives :
- Low voltage no. 73/23 EEC, modified 93/68 EEC.
- Electromagnetic Compatibility no. 89/336 EEC, modified 92/31 and 93/68 EEC.
- Pressure Equipment Directive No. 97/23/CE.

3
SUMMARY
1-Application - Use..........................................................................................3
2-Description - Composition of unit - Accessories ..........................................3
3-Factory fitted options....................................................................................5
4-Technical and physical characteristics.........................................................7
5-Total cooling capacities and power consumptions.......................................9
6-Correction of cooling capacity....................................................................10
7-Total heating capacities and power consumptions ....................................10
8-Wet bulb temperature determination..........................................................11
9-Curves of available heads at unit outlet.....................................................11
10 - Sound levels...............................................................................................12
11 - Installation information ...............................................................................12
1 - APPLICATION - USE
•Air cooled type chilled water generator intended for climate control in buildings.
•Single package unit, factory assembled and tested.
•Designed for outdoor installation.
•Supplied fully charged with R 407 C refrigerant.
•Convenient hydraulic and electrical connections.
•Practical service access via removable panels.
2 - DESCRIPTION - COMPOSITION OF UNIT - ACCESSORIES
2.1 - DESCRIPTION
•The range includes 1 model type :
-PMHRV : An air cooled reversible chiled water generateur with built-in hydraulic module.
Refrigerant
R 407 C
Model
2 refrigerant circuits
2044 / 2050 / 2064 / 2072PMHRV

4
2.2 - COMPOSITION OF UNIT
i
f
e
b
d
c
4
6
1
g
a
j
h
2
8
5
37
9
9Supply
to installation Return from
installation
PMHRV
CONTROL 7
•Microprocessor µCHILLER control module, including:
-Chilled water temperature control.
-Control of operating parameters.
-Anti-short cycle system.
-Hour counter for each compressor.
-Automatic balancing of compressor operating time
(dual compressors).
-Air exchanger defrosting.
-Anti-freeze security (water exchangers).
-Digital display of:
.water temperature,
.set-point,
.alarm code (HP, LP, water output, thermal
protective devices, probes, anti-freeze…).
-Possibility of remote alarm signaling by a voltage-free
change-over contact and operating conditions via
remote µCHILLER display keypad (optional).
-Remote On/Off control via µCHILLER display keypad
(optional) or by voltage-free closing contact (remote
control box supplied with the unit).
-Circulation pump control.
•The thermostat controls fan rotation speed according to
the ambient temperature.
•For special applications, consult us.
CHASSIS - BODYWORK 8
•Galvanised sheet metal with light grey oven-baked
polyester powder paint.
BUILT-IN HYDRAULIC MODULE 9
a-1polyurethane insulated sheetmetal buffer tank.
b-1pumpwithinsulatedcontrolvalve-2shut-offvalves.
c-1filling valve Ø 1/2" female.
d-1pressure gauge, 0-4 bar.
e-1lack of water safety pressure switch.
f-1safety valve.
g-1air relief valve.
h-1drainage valve.
i-1expansion tank.
j-Placements for electric heating elements.
COMPRESSOR 1
•Hermetic SCROLL compressor with sound-proofing
cover.
•Installed on rubber anti-vibration pads.
•Internal thermal protection of the motor winding.
•Crankcase heater.
CONDENSER 2
• Coil, consisting of copper pipes and crimped aluminium
fins.
•Protective grille.
•Condensation pressure probe with the proportional "All-
season" control.
•Probe for defrosting.
FAN 3
•Direct driven axial fan.
•2-speed motor, Y/∆switching, 400V/3Ph/50Hz.
•Rotation speed 700 - 550 rpm.
•Insulation classification F.
•Internal thermal protection.
•Protection class IP55.
•Proportional "All-season" control, available as option.
EVAPORATOR 4
•Plate-type stainless steel (AISI 316L) water treatment
section with freezing protection.
•Antifrost electric heating resistor.
•Watercirculationcontrolledbydifferentialpressureswitch.
•Water inlet temperature probes (for control).
•Temperature probe for antifrost protection.
REFRIGERANT CIRCUIT 5
•R407 C refrigerant.
•Thermostatic expansion valve.
•Drier filter.
•Automatic reset high pressure and low pressure
switches.
•Copper tubing.
•Liquid receiver.
SWITCH BOX 6
•Accessible via hinge-mounted door.
•Main switch.
•Phase-sequence tester.
•Power and control circuitry protected by magnetothermal
circuit breakers.
•Complies with standard EN 60 204-1.
•Short circuit current 10 kA, as per IEC 947-2.

5
2.3 - ACCESSORIES
2.3.1 - ANTI-VIBRATION KIT
•Kit includes:
-1set of 4 anti-vibration plates, thickness 25 mm - code K 60 L 035 Z.
-1set of 2 flexible hoses: length 1.5 m, Ø 1" 1/2 - code K 60 L 034 Z.
2.3.2 - REMOTE CONTROL UNIT (supplied with the unit)
•Ensures remote On/Off control and Heating/Cooling selection (link not provided; max. length = 100 m).
3 - FACTORY FITTED OPTIONS
3.1 - HP and LP PRESSURE GAUGES
•Code K 60 X 002 M for PMHRV 2044, 2050 and 2064,
•Code K 60 X 004 M for PMHRV 2072.
•These elements, mounted on the vertical members of the unit's front face, display the high and low pressure values for each
refrigeration circuit.
3.2 - OPTIONAL BACK-UP PUMP
•Code K 60 L 064 M for PMHRV 2044 to 2072.
•The switchover of the electrical supply onto the 2nd pump is performed manually by a switch box placed near the pumps.
3.3 - ANTI-FREEZE RESISTANCE
•Code K 60 C 010 M.
•Immersion heater mounted on the tank of the hydraulic module.
•Power: 800 W, single-phase 230 VAC.
•With limiting thermostat.
•The power supply and heating element control are to be done separately at the time of installation (not supplied).
•NOTE: The anti-freeze heating element cannot be installed with the supplementary heating option (paragraph 3.6).
3.4 - PROPORTIONAL "HEAD PRESSURE" CONTROL KIT
•Code K 60 G 031 M for PMHRV 2044 to 2072.
•This function is operational only in "cooling" mode.
•Required for units operating in environments in which outside air temperature is below +14°C.
•Varies fan speed according to the condensation pressure.
•Factory-set for optimal operation. For all other settings, consult us.
3.5 - REMOTE "µCHILLER" DISPLAY KEYBOARD
•Code K 60 D 037 M.
•Enables transfer of display keyboard functions up to 150 m.
•See the manual which accompanies this accessory.
•IMPORTANT:
•With this accessory, the µCHILLER control is factory-configured for startup using the specific cooling or heating
keys on the display keypad.
In this case, the digital On/Off and Remote Heating/Cooling Inversion inputs are Inactive.
•By special factory-set parameters (specify when ordering), these digital inputs may remain active. In this case, the
cooling and heating keys on the display keypad are inactive.
•IMPORTANT:
•In the case of PMHRV units with the electric heating option, the cooling , and heating keys on the display
keypadareinactive.TheOn/OffandHeating/Coolinginversioncommandsarethusmadebytheremoteselectorsupplied
with the unit or with the control box (optional item).

6
3.7 - VENTILATION WITH AVAILABLE PRESSURE (for a unit installed in a room)
•Code K 60 Q 002 M for PMHRV 2044 and 2050
•Code K 60 Q 005 M for PMHRV 2064 and 2072
3.6 - AUXILLIARY ELECTRIC HEATING
•The heater consists of immersion heaters each rated at 16 kW (400 V, 3-phase), secured to the hydraulic module's
buffer tank.
•These immersion heaters are controlled from a specific unit with 2-stage control, and the power feeders are protected by
circuit breakers and a master switch (power supply separated).
•Backup is authorized with the 2nd stage, although is triggered only if the generator is out of service.
•The power supply for this heating system is connected separately (3-phase 400 V).
•Eachheatingassemblyisequippedwithasafetythermostatwith2thresholds(1automaticresetthresholdand1manualreset
threshold).
PMHRV 2044 to 2072
Back-up - 16 kW
2nd stage - 16 kW
1st stage - 16 kW
Water
outlet
Tank
Water inlet
Immersion heater with security
Heating power: 48 kW
Current : 70 A
Code K 60 C 480 M :Standard

7
Cooling capacity kW
Total nominal power consumption Cooling kW
Total nominal current Cooling A
EER
Heating capacity kW
Total nominal power consumption Heating kW
Total nominal current Heating A
COP
Water flow rate Cooling m3/h
Heating m3/h
Nominal pressure drop on water Cooling kPa
Heating kPa
Hydraulic connection male 1"1/2 (40 x 49)
Total nominal power consumption Heating kW
Total nominal current Heating A
Starting current A
Electrical supply cable section mm2
Sound-proofed hermetic SCROLL compressor
Number
Nominal current per compressor Cooling A
Heating A
Power consumption per compressor Cooling kW
Heating kW
Refrigerant circuit (number)
R 407 C refrigerant charge kg
Stainless steel brazed plate-type water exchanger
Number
Water capacity litres
Helicoidal fan (direct driven)
Number
Diameter mm
Rotation speed Cooling rpm
per motor Heating rpm
Nominal current Cooling A
per motor Heating A
Power consumption Cooling kW
per motor Heating kW
Installation water capacity
Buffer tank litres
Expansion tank (operating pressure: 1.5 bar) litres
Safety valve pressure bar
Available head kPa
Electrical characeristics hydraulic pump
Maximum power consumption (pump only) kW
Maximum current A
Maximum power consumption per unit (*)kW
Maximum current per unit (*)A
Starting current A
4 - TECHNICAL AND PHYSICAL CHARACTERISTICS
4.1 - TECHNICAL CHARACTERISTICS
40.60
17.50
32
2.32
49
17.80
34.50
2.75
6.94
8.42
23
35
●
18.90
36.80
165
16
●
2
14.90
15.70
8.36
8.51
2
2 x 8
●
2
3.40
●
2
760
550
700
0.70
1.20
0.39
0.65
300
18
3
215
1.60
2.80
22.80
39.60
165
52.60
19.20
34.8
2.74
54
19
36.50
2.84
9
9.40
55
63
●
20.10
38.80
170
16
●
2
16.30
16.70
8.95
8.85
2
2 x 9
●
2
4
●
2
760
550
700
0.70
1.20
0.39
0.65
300
18
3
175
1.60
2.80
26.40
45.80
170
60.60
27
50
2.24
69
27
45.30
2.55
10.42
11.86
50
62
●
28.10
47.60
185
16
●
2
23.40
20.50
12.78
11.18
2
2 x 9 . 5
●
2
5
●
2
760
550
700
1.20
1.80
0.60
0.80
300
18
3
70
1.60
2.80
35.80
61.20
185
67
28.80
53.8
2.33
76
29.40
52.80
2.58
12.10
14.44
47
56
●
30.50
54.10
225
25
●
2
24.75
24.20
14.48
14.98
2
2 x 12.5
●
2
5.80
●
2
760
700
700
1.80
1.80
0.80
0.80
300
18
3
30
1.60
2.80
39
70.60
225
2044 2050 2064 2072
PMHRV
Consult us for any special climatic conditions departing significantly from the nominal conditions.
•Power supply:
400V (±10%) / 3Ph + Earth / 50Hz
•Nominal operating conditions:
• COOLING -water intlet temperature : + 12°C
-water outlet temperature : + 7°C
-outdoor dry bulb temperature : + 35°C
• HEATING -water intlet temperature : + 40°C
-water outlet temperature : + 45°C
-outdoor dry bulb temperature : + 7°C
-outdoor wet bulb temperature : + 6°C
•Operating limits:
• COOLING
- temperature of inlet air to condenser
.standard : + 14°Cto+43°C
.with head pressure control: - 10°Cto+43°C
(optional: proportional fan speed control)
-pure water outlet temperature : + 4°Cto+15°C
• HEATING
-water outlet temperature : + 30°Cto+50°C
-outdoor dry bulb temperature : - 10°Cto+20°C
(as per model)
(*) In the operating range.

8
Condenser air discharge
Condenser air suction
aWater outlet connection
bWater inlet connection
cHP and LP hose entry
dWater outlet connection (with back-up pump)
Dimensions (in mm) are
given for standard units
without options.
General tolerance ±10 mm.
Power supply
Power supply (local or anti-freeze)
Location of the 4 anti-vibration pads
(100 x 100 x 25 mm) under girders
GCentre of gravity (in the centre of the unit)
(1)
bcd
1955
a
x
G
1175 (1425 PMHRV 2072)
450 180
950350
(1)
500
654
180
Access to switch box
2 HP Manometers
(optional) 2 LP Manometers (optional)
262
1050
262
Electric heating control unit (optional)
4 Ø 22.5 mm holes
for sling attachment
4.2 - PHYSICAL CHARACTERISTICS
Overall
packed
dimensions
2,015 mm
1,135 mm
1,890 mm
2,140 mm
PMHRV 2072
Length
Depth
Height
2044
2050
2064
2072
Net
weight
872 kg
876 kg
910 kg
982 kg
Packed
weight
PMHRV
912 kg
916 kg
950 kg
1,022 kg
•Clearances to be respected
for unit operation and
maintenance.
•No obstacle less than 3 m above
the unit.
Front
300
300
1000
300

9
COOLING CAPACITIES TOTAL POWER CONSUMPTIONS
45678 11
12 14 15
18
38
910 13
22
26
30
34
36
32
28
24
20
45678 11
12 14 15
48
104
910 13
56
64
72
80
88
96
45678 11
12 14 15
16
32
910 13
18
20
22
24
26
28
45678 11
12 14 15
40
76
910 13
48
52
64
68
72
60
56
44
45678 11
12 14 15
0
24
910 13
4
8
12
16
20
45678 11
12 14 15
0
70
910 13
10
20
30
40
50
60
Total power consumption (kW)
Water outlet temperature (°C)
PMHRV
2044
Cooling capacity (kW)
Water outlet temperature (°C)
Total power consumption (kW)
Water outlet temperature (°C)
PMHRV
2050
Cooling capacity (kW)
Water outlet temperature (°C)
Total power consumption (kW)
Water outlet temperature (°C)
PMHRV
2064
Cooling capacity (kW)
Water outlet temperature (°C)
468101214161820
20
22
24
26
28
30
32
34
36
38
468101214161820
50
60
70
80
90
100
110
120
130
Total power consumption (kW)
Water outlet temperature (°C)
PMHRV
2072
Cooling capacity (kW)
Water outlet temperature (°C)
∆T (water) between 4 and 6°K.
5 - TOTAL COOLING CAPACITIES AND POWER CONSUMPTIONS
Outdoor temp. = 15°C
Outdoor temp. = 25°C
Outdoor temp. = 35°C
Outdoor temp. = 45°C
Outdoor temp. = 45°C
Outdoor temp. = 35°C
Outdoor temp. = 25°C
Outdoor temp. = 15°C
Outdoor temp. = 43°C
Outdoor temp. = 35°C
Outdoor temp. = 25°C
Outdoor temp. = 15°C
Outdoor temp. = 45°C
Outdoor temp. = 35°C
Outdoor temp. = 25°C
Outdoor temp. = 15°C
Outdoor temp. = 45°C
Outdoor temp. = 35°C
Outdoor temp. = 25°C
Outdoor temp. = 15°C
Outdoor temp. = 15°C
Outdoor temp. = 25°C
Outdoor temp. = 35°C
Outdoor temp. = 43°C
Outdoor temp. = 15°C
Outdoor temp. = 25°C
Outdoor temp. = 35°C
Outdoor temp. = 45°C
Outdoor temp. = 15°C
Outdoor temp. = 25°C
Outdoor temp. = 35°C
Outdoor temp. = 45°C

10
HEATING CAPACITIES TOTAL POWER CONSUMPTIONS
-10 -4 0 4 8 12 16
12
14
16
18
20
-8 -2 2 6 10 14-6
26
22
24
50°C
45°C
35°C
-10 -4 0 4 8 12 16
30
40
50
60
80
-8 -2 2 6 10 14-6
70 50°C
45°C
35°C
-10 -4 0 4 8 12 16
12
14
16
18
20
-8 -2 2 6 10 14-6
22
50°C
45°C
35°C
-10 -4 0 4 8 12 16
30
40
50
60
70
-8 -2 2 6 10 14-6
35°C
45°C
50°C
Total input power (kW)
Outdoor wet bulb temperature (°C)
PMHRV
2044
Heating capacity (kW)
Outdoor wet bulb temperature (°C)
Total input power (kW)
Outdoor wet bulb temperature (°C)
PMHRV
2050
Heating capacity (kW)
Outdoor wet bulb temperature (°C)
Water outlet temperature Water outlet temperature
Water outlet temperature
Water outlet temperature
1.30
1.20
1.10
1.00
0.94
010203040
0
-5
-10
-15
-20
-25
1.19
1.113
6 - CORRECTION OF COOLING CAPACITY
PRINCIPLE OF USING THE CURVES
A- Choose the percentage of glycol according to the
minimum temperature to protect the hydraulic circuit
against frost.
B- Example:
Protection at an external temperature of -15°C, which
gives 30% glycol (freezing points curve).
Thelossofcapacityisgivenonthe"Reductionofcooling
capacity" curve (0.94).
Thenewflowisgivenbythecoefficientonthewaterflow
curve (1.113).
Likewise, to determine the new pressure drop
coefficient in relation to the nominal flow, read the
pressure drop curve (1.19).
Valid curves for setting temperature at the water
inlet.
% in weight of ethylene glycol
Correction factors
Outdoor temperature °C
Reduction of cooling capacity
Water flow
Pressure drop
Freezing points
•IMPORTANT:
Use monopropylene glycol (a minimum rate of 15% to 20% is needed to avoid any risk of corrosion).
7 - TOTAL HEATING CAPACITIES AND POWER CONSUMPTIONS
∆T (water) between 4 and 6°K.