MAXA bi-32V5C MIDI 0128, Technical Bulletin

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i-32V5C MIDI
Inverter Air/Water chillers with axial fan
7
• GI module - system management. (optional or for versions that require it).
The control section includes:
• Interface terminal with alphanumeric display;
• Display function for set values, analogue inputs, fault codes, alarm history and parameter index;
• Key on/off and alarm reset;
• Key combinations to force defrost and force pump to maximum speed;
• Management of unit start-up from local or remote;
• ModBus connectivity (optional);
• BMS connectivity via converter
• BMS connectivity provision (ModBus/Bacnet/Knx/Lonworks) - optional.
1.8 CONTROL AND PROTECTIVE DEVICES
All the units are standard supplied with the following control and protective devices: return water temperature probe, installed on water return
pipe from the plant, working and antifreeze probe installed on the water delivery pipe to the plant, high pressure transducer, low pressure
transducer, inlet and outlet temperature probes from the compressor, compressor thermal protection, fan thermal protection, water side flow
switch protecting the evaporator, HP pressure switch.
1.9 WATER CIRCUIT
The series units are supplied with a built-in water circuit which includes: modulating circulator with high-efficiency brushless motor (EEI≤0.23),
suitable for the use of chilled water and managed directly by the machine’s controller, plate heat exchanger, protective flow switch, safety valve
(6 bar) to be connected to a collection system and manual air venting valve.
2. DESCRIPTION OF VERSIONS AND ACCESSORIES
2.1 VERSIONS
The available versions are:
i-32V5C Midi - standard version chiller
i-32V5C-DS Midi - chiller with desuperheater
The unit with desuperheater includes the addition of a brazed plate type heat exchanger made of AISI 316 stainless steel, factory insulated using
closed cell material. This version allows to recover about 20% of the condensing heat otherwise lost and to use it to feed the after-heating water
coils of an AHU or for a hot water flywheel or for any other process use.
i-32V5C-BT Midi - BT version chiller (for low water temperatures)
The BT version unit allows the operating range of the unit to be extended by cooling water to -8°C. In this case, a mixture of water and glycol is
used.
Order code
0110720#
00 Cooling only
54
Cooling only - BT
version
24 0121
25 0126
26 0128
27 0132
0 2 pipes
3
Desuperheater
circuit
0 Without injection
0 No silencing
1 Silencing
0
Without antifreeze
kit
4
Exchanger
resistance (KA1)
0 Without GI/GI2*
1
With GI/GI2 plant
operator
2 Modbus (CM)*
3 Modbus (CM) +GI
0 Standard
2
Thermomagnetic
circuit breakers
(IM)
0 No one
7
Battery with AERO
treatment (TR1)
0 No one
01 Standard
Accessory - Battery
treatment
Accessory 1 Code
RV
CT1
TA
Unit version Thermal capacity Water pipe configuration Antifreeze kit accessory
System management
module
Electrical variants Injection (LT) Silencing
IV
SIL
AC1
MC
GI
EL3
TR
KA
* Not valid if TA=3
2.2 LIST OF ACCESSORIES
Available accessories are indicated below: