Page No 28 Reznor, Guardian GB GR and GS, Installation Manual, EN 2021-08, D301214 Iss D
C
Use PLUS and MINUS to select outside temperature
limit, either Off or between 5 and 30, then OK. If
outside temperature limit is set to OFF the sequence
then finishes and returns to engineers menu.
If outside temperature limit is set to between 5 and
30 then an additional setting is displayed which is
dependent on the detected system type, electric or
LPHW. For electric and legacy LPHW systems elevate
at zero temperature starts flashing.
Use PLUS and MINUS to select elevate at zero
temperature, range is 0 to 9, then OK to set and
return to engineers menu.
Elevate at zero temperature is a temperature boost
at low outside temperatures and the scale is set
using the boost at 0°C.
For new LPHW systems full flow/return at temp starts
flashing. Use PLUS and MINUS to set full flow/return
at temperature, range is 0 to outside temperature
limit. Full flow/return at temperature is the outside
temperature below which full target flow and
return temperatures are used. Above this outside
temperature flow and return target temperatures are
scaled down to a minimum at outside temperature
limit.
Note: All air curtains use the same outside
temperature operation.
6. Set temperature limits:
Set temperature limits is only displayed if the system
is detected as electric or legacy LPHW.
OK starts low temperature limit flashing.
Use PLUS and MINUS to select low temperature limit
between 5 and current high temperature limit, then
OK.
High temperature limit starts flashing.
Use PLUS and MINUS to select high temperature
limit between current low temperature limit and 50,
then OK to set and return to engineers menu.
Note: All air curtains use the same temperature
limits.
7. Set int/ext time
OK starts INT/EXT Timer
Use PLUS and MINUS to set INT/EXT timer then OK
to return to engineers menu.
8. Set group interlocks.
OK starts lead address flashing.
Use PLUS and MINUS to select lead air curtain
address either to OFF or to one of the air curtains
discovered then OK.
If lead air curtain address is set to OFF then the
sequence finishes and returns to the engineers
menu; interlocks will not be enabled.
If lead air curtain address is set to an air curtain then
this becomes the lead for interlock inputs and then
timer input interlock is flashing.
Use PLUS and MINUS to set timer input interlock off
or on then OK.
Door input interlock is flashing.
