Setpoint Offset; Settings; Operation - Procon A1M Installation Manual

5. Setpo oint Offs set
The Setpoint t Offset feature e is only applic
5.1. Se ettings
There are two o settings whi ch are applica
Setpoint.
The BMS Vir rtual Setpoint c can be change
if the MelcoB BEMS MINI (A A1M) loses pow
The BMS Ro oom Temperat ture can be ch
lost and rese et to zero upon n the MelcoBE
5.2. Op peration
rd
In some situa ations a 3 pa arty room temp
accurate tem mperature read ding than the r
between thes se two temper rature reading
The new tem mperature setp point is calcula
Temperature e Setpoint = R Return Air Te
As a hypothe etical example e, consider the
temperature remaining con nstant at 22ºC
increases the e indoor unit's temperature
When the BM MS Room Tem mperature reac
Hysteresis ha as been built i n to prevent th
cable to, and w will only be en
able to the Set tpoint Offset fe
ed using Modb bus and is sto
wer.
hanged using M Modbus but is
EMS MINI (A1 M) losing pow wer.
perature senso or connected t
return air temp perature of the
s and compen nsate by adjus
ated using the following equ
emperature – (BMS Room
e BMS Virtual S Setpoint being
C. As the BMS Room Tempe
setpoint.
ches 18ºC the e Temperature
he temperatur re setpoint fro
nabled for, Air- -To-Air type u
eature, BMS R Room Temper
ored in non-vo latile memory y so the value
s not stored in non-volatile m
to a BMS or o other controller
e indoor unit. T The A1M can c
sting the indoo or unit's tempe
ation:
Temperature e – BMS Virtu
g set to 21ºC a and the indoor
erature decrea ases the Melco
e Setpoint = 22 2 – (18 – 21) =
m rapidly cha nging.
nits.
rature and BM MS Virtual
is retained
memory, so th e value is
r may provide a more
calculate the d difference
erature setpoin nt.
ual Temperatu ure)
r unit return a ir
oBEMS MINI (A1M)
= 25ºC.
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