Page No 30 Reznor, Guardian GB GR and GS, Installation Manual, EN 2021-08, D301214 Iss D
C
Diagnostics
PLUS and MINUS with MENU enters diagnostics
menu.
Initial display:
+ and - change the air curtain displayed.
MENU exits diagnostics back to normal display.
All air curtain addresses are shown even if there is no
AC installed.
Display if no air curtain is installed on this address:
Display if the air curtain on this address is not
responding to the panel:
Display for active air curtains. Electric/legacy LPHW
system:
New LPHW system:
A C # # H * F *
O * * * F * * R * * S F T D
Where:
AC##, is address of AC with diagnostics being
displayed.
H*, 1 = heat on, 0 = heat off from AC flag.
F*, 0 to 3 fan level from AC flag, 0 is off.
O***, outside temperature, range -25 to 99
or “- -“ if temperature range error or “ “ if no
sensor.
T**, electric control temperature, 0 to 99 or “-
-“ if temperature range error.
P**, electric PCB temperature, 0 to 99 or “- -“ if
temperature range error.
F**, new LPHW flow temperature, 0 to 99 or “-
-“ if temperature range error.
P**, new LPHW return temperature, 0 to 99 or
“- -“ if temperature range error.
S, Stat input (S = open, blank = closed).
F, Filter blocked input (F = open, blank = closed).
T, Timer input (T = closed, blank = open).
D, Door input (D = closed, blank = open).
