MAXA i-HPV5H 0140, Manual

Page: 24 / 36

Controllo per i-HPV5
Chillers and Inverter Air/Water heat pumps with axial fan
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the DHW integration resistor and the subdivision into operating bands does not apply. The DHW integration resistor is activated when the set-
point is satisfied after r16 minutes from compressor start-up or when the set-point is not satisfied with the machine in lockout or alarm.
TABLE 5. OPERATION IN COOL+SAN (DHW RUNNING)
INTEGRATION INTERVENTION ORDER STATUS OPERATION r10 r15 r12 r16 r23 r24
1) DHW integration heater COOL+SAN SANITARIO 0/1 1 /
Set the
minutes
0/1/2/3/4/5/6 2/3
Table 6 shows the behaviour of the plant and DHW integration heaters in all the operating modes of the unit.
TABLE 6. INTEGRATION HEATERS OPERATION
STATUS OPERATION PLANT INTEGRATION HEATER DHW INTEGRATION HEATER
HEAT+SAN HEAT Works as indicated in TABLE 1,2,3 and 4.
DHW thermoregulation has priority over system
thermoregulation, so if thermoregulation so re -
quires, the machine switches to "DHW" operation
and the DHW integration resistor behaves as indicat -
ed in TABLE 1, 2, 3 and 4.
HEAT+SAN DHW
Only if all 3 of the following conditions are met: the
output is configured for Plant integration,
r24 = 1/3
,
plant water temperature remote ptobe present and
configured.
The plant integration heater is activated in the fol -
lowing situations:
r12
minutes after the start of its count activated in
“HEAT” mode previously running (see previous line);
if its count is not already activated in the previous
“HEAT” mode,
r12
minutes after the temperature
control demand.
In SANITARY mode, with remote probe not cofig -
ured, the plant integration heater is deactivated or
any of its count are interrupted.
With "remote on-off" contact open, the Plant inte -
gration heater is deactivated.
Works as indicated in TABLES 1,2,3 and 4.
COOL+SAN DHW Cannot be actived Works as indicated in TABLE 5.
COOL+SAN COOL Cannot be active Cannot be activated
22. AXILIARY SYSTEMS OFFSET MANAGEMENT
Setting offsets, it is possible to establish that the boiler and/or integration resistors (depending on the selected resources and priorities) have a
higher setpoint in heating or DHW mode than the heat pump:
• r29 = temperature offset for boiler and system resistors first set point (Hea);
• r30 = temperature offset for boiler and system resistors second set point (Hea2);
• r31 = temperature offset for boiler and domestic hot water heaters (San).
In this way the heat pump will stop at the set point and the thermal jump, according to the set offset, will be borne by the boiler and/or the
integration resistors.
23. PERMITTED CONFIGURATION TABLES
Below is a table of user and installer parameters including all the permitted configurations. Not all the configurations listed can be selected at the
same time. The values listed below may be subject to updates, in case of doubt please contact the company.
ATTENTION:
• All the operations with INSTALLER visibility must be carried out by QUALIFIED PERSONNEL.
• Values other than the default values can jeopardise proper operation of the unit. If in doubt on which value to set, contact
our headquarters.
• The company excludes any contractual and extra contractual liability for damage caused to persons, animals or objects, by
incorrect installation, setting and maintenance, improper use of the equipment, and the partial or superficial reading of the
information contained in this manual.
• No liability can be accepted in the event of breakages or malfunctionscaused by unauthorised canges to the factory param -
eters.