Standby Mode - Prestige Solo 175 Installation And Maintenance Manual

Start-Up Procedures
Standby Mode Display
Boiler function
Display
0 180
STANDBY, no demand for heat
1 180
Fan prepurge (10 seconds) or post purge cycle
180
2
Ignition sequence
3 180
Burner ON for space heating (CH)
4 180
Burner ON for domestic water heating (DHW)
5 180
Pre-check for air flow prior to prepurge cycle
Burner OFF due to reaching temperature
180
6
set point
Post pump cycle for primary space heating
7 180
(1 minute)
Post pump cycle for domestic hot water
8 180
(30 seconds)
9
180
Burner blocked:
Supply temperature too high (203 F) .Burner will
b
18
remain OFF until outlet temperature drops
below 200 F
Return temperature too high (203 F). Burner
b 19
will remain OFF until temperature drops
below 200 F
Return temperature is measured higher than
b
24
supply temperature. Burner will remain OFF
until corrected.
Supply temperature increased too quickly.
b
25
Burner will remain OFF for a 10 minute period.
Burner will recycle, increasing waiting period 1
minute for a max. 15 minutes
Factory supplied LWCO pressure device or
b
26
external limit (terminals 15 & 16) is OPEN.
Burner off for 150 seconds, auto reset.
b 2 2 8
No blower signal
Blower signal present, Burner will remain OFF
b 2 9
until condition terminates
Temperature rise between the supply and return
b 30
is more than 72 F. Burner will remain OFF for
150 seconds. Burner will recycle increasing
wating period 1 minute for a max. 20 cycle.
Short circuit measured across flue temperature
b 35
sensor terminals. Burner OFF until corrected.
Open circuit measured across the flue
b 40
temperature sensors.
Flue temperature greater than 241 F less than
b 52
250 F. Burner off for 150 seconds
b 65
Wait for the blower to start
46