46
Rated head of circulative pump:
Σ On-way resi Σ Local resi Unit resistance
Rated flow of circulative pump:
Rated flow of a single circulation heating unit × Circulating unit quantity
2.8 E-heater capacity selection
The auxiliary water heater comes into operation when required.
The host unit pro
vide
s the passive
control signals of the auxiliary heater
.
The installa
ti
on loca
ti
on of the auxiliary heater must strictly comply with the installa
ti
on schemata
ti
c
d
iagram
.
Rat
ed he
a
ti
ng capacity of total unit × 10%~30
%.
A
ft
er installa
ti
on, it must through
d
ialing co
de
s select the rela
ti
ve E -hea
ti
ng mo
de;
otherwise it will
d
amage the unit or E-heater
.
The temperature at which the auxiliary heater operates is merely a recommendation;
Make sure E-heater is covere
d wi
th water all the
ti
m
e.
actual setting needs to be determined by conditions.
2.9 Electric connection of the unit
Only use the electric components speci
fied
by the pro
d
uct manufacture
r.
.
Electronic installa
ti
on must comply with the local regula
ti
ons. An in
depende
nt power supply shoul
d
be
utilised; one that satisfies the electrical requirements of the unit in question.
The unit must be
earthed
.
Set leakage protec
ti
ve
d
evices accor
d
ing to the r
equ
irements of na
ti
onal technical stan
d
ar
ds
regarding
electric
equ
ipment.
Power supply wire an
d
signal wire shoul
d
be separated, so that electrical interference does not occur,
When power cable and signal cable are in parallel, they must be installed in separate conduits
and should not come into contact with connecting pipes or valves.
MCAC-HTSM-201801 Alliance R410A Direct Heating Type HPWH 50Hz Technical Manual