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Home > HVAC Equipment Lines > Viessmann > Vitocal 100-AW AM2V Air to Water Heatpump > Vitocal 100-AW Installation, Service, and Operating instructions
Vitocal 100-AW Installation, Service, and Operating instructions
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Vitocal 100-AW AM2V

Models 020028, 0340043 and 051078

Outdoor Air to Water Heat Pump

Indoor Distribution and Control Unit

Heating Capacity: 20.5 to 58 MBH 6 to 17 kW

Cooling Capacity: 1.4 to 4.3 Ton 5 to 15 kW

Refrigerant: R-32

 

Changes in the configuration menu are possible after entering an access code. (See page 58 in the manual)

When prompted for an access code, turn the navigation dial to the required code and confirm the code by pressing the dial. If you want to exit from the code request screen, hold the navigation dial or wait until automatic return to main function screen.

Code: 987

Scroll through the menu with the navigation dial and press the navigation dial to select.

When complete select ‘End’ to return to the Service menu.

 

 

Input FN1 is supplied with a factory installed jumper across the terminals. The jumper can be replaced with a normally closed dry contact relay. When in heating mode if the relay is in the open position central heating is blocked.

 

Input FN2: Cooling is not enabled from factory, refer to “Cooling:” on page 59 to active cooling in the “Service/Configuration Menu”. If cooling has been enabled a field supplied jumper must be installed across the FN2 terminals. The jumper can be replaced with a normally closed dry contact relay. When in cooling mode if the relay is in the open position central cooling is blocked. An optional field supplied humidity switch/sensor can be wired in series with the relay to protect the cooling system from condensation.

 

Fault codes indoor unit

Fault Codes for INDOOR UNIT Cause
Temp. HC 2 Circuit 2 temperature sensor error
Cooling temp. Cold buffer temperature sensor error
DHW Tank Temp. DHW tank temperature sensor error
Room Temp. Room temperature sensor error
Outlet Temp. Outlet temperature sensor error
Inlet Temp. Return temperature sensor error
Press. Sensor System pressure sensor error indoor unit
Temp. HC1 Circuit 1 temperature sensor error
Outside Temp. Outside temperature sensor error
Low Battery Battery to be replaced
PIU Pump Indoor unit internal circulation pump error in indoor unit
Heat Pump Module Heat pump error - outdoor unit
Low Pressure Low pressure of the heating medium
Communication Communication error indoor unit to outdoor unit
Thermal Cut-off Fixed high limit switch triggered indoor unit
HP Inlet Temp. Inlet temperature sensor error - outdoor unit
HP Outlet Temp. Outlet temperature sensor error - outdoor unit
Curves Config. Error Heating curves configuration error
Circuit Config. Error Error in the configuration of the heating circuits
HP Low Pressure Outdoor unit low refrigerant pressure

 

Fault codes outdoor unit

Fault Code for OUTDOOR UNIT Cause
E10 - E11 Reserved
E12 Heating return temp sensor failure
E13 Heating outlet water temp sensor failure
E14 High pressure protection - requires manual reset
E15 Reserved
E16 Low pressure protection - requires manual reset
E17 Reserved
E18 Water flow protection - requires manual reset
E19 Electric heating overload protection
E110 Winter first class anti-freeze protection
E111 Winter second class anti-freeze protection
E112 Anti-freeze protection - requires manual reset
E113 Reserved
E114 Room temp failure
E115 Reserved
E20 Exhaust temperature overprotection - requires manual reset
E21 E22 Reserved
E23 Fan 1 overload speed limit
E24 Fan 2 overload speed limit
E25 The temp difference of inlet water and outlet water exceeded
E26 Outlet water over heat
E27 Mixing outlet water temp sensor failure
E28 Hot water return temp sensor failure
E29 Hot water outlet water temp sensor failure
E210 - E215 Reserved
E30 - E33 Reserved
E34 High pressure protection 3 times
E35 Reserved
E36 Low pressure protection 3 times
E37 Reserved
E38 Water flow protection 3 times - requires manual reset
E39 Electric heating protection 3 times
E310 - E311 Reserved
E312 Anti-freeze protection 3 times - requires manual reset
E313 - E315 Reserved
E40 Discharge over heat protection 3 times
E41 Reserved
E42 The temp difference of inlet water and outlet water temp exceeded 3 times
E43 The outlet water temp too low 3 times
E44 Outlet water over temperature protection 3 times
E45 - E49 Reserved
E410 - E415 Reserved
E50 Inlet water temp failure
E51 Outlet water temp failure
E52 Coil temp failure
E53 Ambient temp failure
E54 Suction temp failure
E55 Anti- freeze temp failure
E56 The coil outlet water temp sensor failure
E57 - E58 Reserved
E59 EVI inlet temp failure
E510 EVI outlet temp failure
E511 Discharge temp failure
E512 Reserved
E513 System 1 pressure sensor failure
E514 Low ambient temp failure
E515 Outlet temp too low protection
E60 - E67 Reserved
E68 Hot water temp failure
E69 Reserved
E610 Reserved
E611 Fan 1 failure
E612 Fan 2 failure
E613 Communication failure(main board with fan motor module board)
E614 Reserved
E615 Communication failure(main board with fan motor 2 module board)
E70 IPM overheat
E71 Compressor start failure
E72 Compressor over currents - requires manual reset
E73 Input voltage phase loss
E74 IPM current sampling fault
E75 Overheat protection of drive board devices
E76 Pre-charge failure
E77 DC bus bar over voltage
E78 DC bus under voltage
E79 AC input voltage under voltage
E710 AC input over current shutdown
E711 Input voltage sampling fault
E712 DSP and PFC communication failure
E713 Drive plate temperature fault
E714 DSP and communication board communication failure
E715 Mainboard communication failure
E80 IPM overheat stop
E81 - E82 Reserved
E83 15VDC undervoltage
E84 - E89 Reserved
E810 - E815 Reserved
E90 Voltage electromechanical current down frequency alarm
E91 Compressor weak magnetic protection alarm
E92 Power unit overheating alarm
E93 Reserved
E94 AC input current down alarm
E95 EEPROM failure warning
E96 - E99 Reserved
E910 - E912 Reserved

 

 

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