Page No 28 Reznor, Guardian 1 Phase Electric Heat with Signal Pro, Installation Manual, EN 2021-11, D301375 Iss 0
C
Function arguments — Coils
Arguments which are outside the ranges for registers
and coils in the lists below will cause exception code 02
error address out of range
1 Fan1
Read only
Set if fan 1 actually
running
2 Fan2
Read only
Set if fan 2 actually
running
3 Fan3
Read only
Set if fan 3 actually
running
4 Timer_link
Read only
Set if timer link open
circuit
5
Phase
rotation
Read only
Arbitary indication of
phase
6 Stat_link
Read only
Set if thermostat link
open circuit
7 Door_link
Read only
Set if door link open
circuit
8 Status_heat Read only
Set if heating elements
on
9
Status_
temp
Read only
Set if system
temperature
measurement fail
10 Status_hs
Read only
Set if heatsink
temperature
measurement fail
11 Status_ext
Read only
Set if external
temperature
measurement fail
12 Ext_exists
Read only
Set if external thermistor
not fitted
13 Set_fan1
Read/write Switch fan 1
14 Set_fan 2
Read/write Switch fan 2
15 Set_fan 2
Read/write Switch fan 2
16 Heat
Read/write
Switch heat demand on/
off A
17
Timer_link_
mask
Read/write
Set to force timer link
open circuit operation
18 0
Read/write
May indicate fault
condition if read returns
‘1’
19
Stat_link_
mask
Read/write
Set to force
thermostat link open
circuit operation
20
Door_link_
mask
Read/write
Set to force door link
open circuit operation
21
Set_
doorfan 1
Read/write
Switch fan 1 when door
link open circuit
22
Set_
doorfan 2
Read/write
Switch fan 2 when door
link open circuit
23
Set_
doorfan 3
Read/write
Switch fan 3 when door
link open circuit
24 0
System reset (*)
(*) A read or write to this coil causes the addressed
controller to execute a restart as if being powered
up.
There is no response and the unit will not respond to
further commands until approximately 1 second has
elapsed.
Arguments which are outside the ranges for registers
and coils in the lists above will cause exception code
02 error - address out of range.
Summary of Contents for GUARDIAN GB 1000
Page 2: ......