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ILAHP Inverter Extreme Air-to-Water Heat Pump
Top Menu Number
Name
Range
Factory
Default
Description
System
H01
Auto Start
Yes/No
Yes
The control will retain the last operating mode when powered down
and restarted
H02
System Quantity
N/A
N/A
Not used on this unit.
H03
4-Way Valve Polarity
N/A
N/A
Not used on this unit.
H05
Cooling Mode
Yes/No
Yes
If H05 = No, unit will only operate in heating. If H05=Yes, unit can
operate in both heating and cooling.
H06
Unit Model Selection
N/A
N/A
Not used on this unit.
H07
Dry Contact
Master/Slave
Master
When H07 = Slave, unit is controlled by remote display, when H07 =
Master, unit is controlled by field wired inputs
H10
Unit Address
1-32
1
When multiple units are operating from a Modbus signal, H10 is set
to the unique address of the individual unit.
H15
Compressor Shunt Times
N/A
N/A
Not used on this unit.
H16
Comp Overcurrent Setpoint
N/A
N/A
Not used on this unit.
H17
Comp Energy Stage Control
N/A
N/A
Not used on this unit.
H18
Electric Heater Energy Stage
Stage 1/Stage2/
Stage3
Stage1
H18 = 1single stage of electric heat engages after 30 minutes. H18
= 2, stage 1 runs for 30 minutes, then disengages and Stage 2
engages.H18 = 3, Stage 1 runs for 30 mintues, then disengaged
and Stage 2 engages and runs for 30 minutes, then Stage 1 and
Stage 2 run together
H20
3-Way Valve Polarity
Hot Water ON/Hot
Water OFF
Hot Water
ON
When H20 = Hot Water ON, DHW circuit energizes on a DHW call.
When H20 = Hot Water OFF, circuit de-energizes on a DHW call.
H21
Temperature Unit
°C/°F
°F
H01=0 Degrees Celsius, H21=1 Degrees Farenheit
H22
Silence Mode
Yes/No
No
H22 = No, whisper mode disabled, H22 = Yes, whisper mode
enabled
H25
Air Conditioner Temp Choice
Outlet Water/
Room
Outlet
Water
H25 = Outlet Water Temperature, heating operation modulates on
Leaving Water Temperature. H25 = 1 is not supported.
H27
EVI Enabled
No EVI/EVI for
Cooling/EVI for
Heating/All EVI
All EVI
H27 = 0 EVI is not active. H27 = 1 EVI is active in cooling only.
H27 = 2 EVI is active in heating only. H27 = 3 EVI is active in both
heating and cooling
H28
Heating/Cooling and Hot Water Function
Enabled
Yes/No
No
H28 = No, DHW is not enabled. H28 = Yes, DHW function is
enabled
H29
Model Running Parameter Code
0-20
0
H29 = 0 for all modes of operation. All other values are for factory
testing only
H30
Hydraulic Module
Yes/No
No
Feature is not used in the ILAHP
H31
Pump Type
No Flow Detected/
Grundfos25-75/
Grundfos25-105/
Grundfos25-125
No Flow
Detected
H31 = No Flow Detected. No integral water pump is offered. No
other options are applicable on this unit.
H32
Force Switch Mode Time
1-300
60
This is the maximum continuous time DHW will operate if there is a
heating call. After H32 time expires, unit will change over and satisfy
the heating call.
Protect
A03
Shutdown Ambient Temp
-40-50°F
-22
The ILAHP will not start or operate when the ambient temperature
is below A03.
A04
Antifreeze Temp
N/A
36
Freeze protection will energize the circulator when the ambient
temperature is below 35.6°F and the Inlet Water Temp is below
A04. The ILAHP will start in Heating mode when the ambient
temperature is below 32°F and the inlet water temperature is below
A04.
A05
Antifreeze Temp Difference
1.8-90°F
5
Freeze protection will shut off when the inlet water temperature rises
above A04+A05.
A06
Exhaust Temp Protect Setup
140-266°F
239
Comressor will shut off if the discharge temperature reaches A06. It
will restart when the temperature falls to A06 - 54°F
A11
Low Voltage Pressure Sensor
Yes/No
N/A
N/A
A12
Low pressure Sensor Max. Value
N/A
N/A
Not used on this unit.
A13
Low Pressure Sensor Min. Value
N/A
N/A
Not used on this unit.
A19
Antifreeze Program
N/A
N/A
Not used on this unit.
A20
Current Transformer Type
N/A
N/A
Not used on this unit.
A21
Ambient/Suction/Coil Sensor
5K/2K
5K
5k NTC Thermistor, 2k NTC Thermistor
A22
Antifreeze Min Temp
-5-140°F
34
The minimum allowable value of A04 is defined as A22
SECTION 6: PARAMETERS