MAXA i-32V5C MIDI 0121 - Auxiliary Systems Offset Management

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Controllo per i-32V5 MIDI Air/water inverter chillers and heat pumps with axial fans
TABLE 4. OPERATIO IN SUBSTITUTION
INTERVENTION ORDER STATUS OPERATION r10 r15 r12 r16 r23 r24
1) Sanitary integraon heater
2) Aer r12 minutes, boiler
HEAT+SAN SANITARIO 0/1 0/1/2 /
Set the
minutes
2/3 2/3
1) Boiler
2) Aer r12 minutes, system/ sanitary
integraon resistence
HEAT /
HEAT+SAN
HEAT/SANITARY 0/1 0/1/2
Set the
minutes
Set the
minutes
6 3
1) System/ sanitary integraon resis-
tence
2) Aer r12 minutes, boiler
HEAT /
HEAT+SAN
HEAT/SANITARY 0/1 0/1/2
Set the
minutes
Set the
minutes
3 3
1) Boiler
HEAT /
HEAT+SAN
HEAT 0/1 0/1/2
Set the
minutes
/ 1/3/4/6 0/2
1) System integraon resistence
HEAT /
HEAT+SAN
HEAT 0/1 0/1/2
Set the
minutes
/ 0/2/5 1/3
1) Boiler HEAT+SAN SANITARY 0/1 0/1/2 /
Set the
minutes
2/3/5/6 0/1
1) Sanitary integraon resistence HEAT+SAN SANITARY 0/1 0/1/2 /
Set the
minutes
0/1/4 2/3
1) Boiler
HEAT /
HEAT+SAN
HEAT / SANITARY 0/1 0/1/2
Set the
minutes
Set the
minutes
3/6 0
1) System/DHW integraon resistence
HEAT /
HEAT+SAN
HEAT / SANITARY 0/1 0/1/2
Set the
minutes
Set the
minutes
0 3
Table 5 shows the sengs to be congured to enable the integraons COOL + SAN mode.
In this case, the only integraon that can be acvated is the domesc hot water integraon resistor and the division into operang bands does
not apply. The DHW integraon resistor is acvated when the set-point is sased aer r16 minutes from the compressor start-up or when the
set-point is not sased with the machine in lockout or alarm.

INTEGRATION INTERVENTION ORDER STATUS OPERATION r10 r15 r12 r16 r23 r24
1) DHW integraon resistance COOL+SAN SANITARY 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 integraon heaters in all the operang modes of the unit.
TABLE 6. INTEGRATION HEATERS OPERATION
STATUS OPERATION PLANT INTEGRATION RESISTENCE DHW INTEGRATION RESISTENCE
HEAT+SAN HEAT Works as indicated in TABLES 1, 2, 3 and 4.
DHW thermoregulaon takes precedence over
the system thermoregulaon, so if the thermo-
regulaon requires it, the machine switches to
"DHW" operaon and the DHW integraon resis-
tor behaves as indicated in TABLES 1, 2, 3 and 4.
HEAT+SAN SANITARY
Only if all 3 of the following condions are met: system
heater output congured, r24 = 1/3,remote system
water temperature probe present and congured.
the system integraon resis-
tor is acvated in the following cases:
• aer r12 minutes from the begin-
ning of its previously acvated count
in "HEAT" mode (see previous line);
• if not already acvated its counng in the
previous "HEAT" operang mode, aer r12
minutes from the thermoregulaon request.
In HEAT mode, with remote probe not con-
gured, the plant integraon resistor is de-
acvated or its counng is interrupted.
With open remote on-o contact, the
plant integraon resistor is deacvated.
Works as indicated in TABLES 1,2,3 and 4.
COOL+SAN SANITARY Not acve Works as indicated in TABLE 5.
COOL+SAN COOL Not acve Not acve
AUXILIARY SYSTEMS OFFSET MANAGEMENT
Seng osets, it is possible to establish that the boiler and/or integraon resistors (depending on the selected resources and priories) have a
higher setpoint in heang or DHW mode than the heat pump:
• r29 = temperature oset for boiler and system resistors rst set point (Hea);
• r30 = Temperature oset for boiler and system resistors second set point (Hea2);
• r31 = temperature oset for boiler and domesc hot water heaters (San).