Weil-McLain BCP-8X Boiler User Manual


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10
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EMS input or thermostat). It will only be available when Tstat is selected as the External Input Mode option
from the Startup menu on page 1.
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 7KH7VWDWVLJQDOPXVWEHDGU\FRQWDFWRQO\1RYROWDJHFDQEHSODFHGDFURVVWKHTSTAT terminals.
 %ULQJWKHWZRZLUHVIURPWKHGU\FRQWDFWWRWKHWHUPLQDOVPDUNHGTSTAT- 35,36.
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33 35
2
34 36
37 38
y
PROVE
SHUTDOWN
/TSTAT
/SETBACK
Auxiliary
Input3
T-Stat
Dry Contact
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menu on page 1.
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input or external time clock). No Day/Night scheduling options will be available with this feature.
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 7KH6HWEDFNVLJQDOPXVWEHDGU\FRQWDFWRQO\1RYROWDJHFDQEHSODFHGDFURVVWKHSETBACK terminals.
 %ULQJWKHWZRZLUHVIURPWKHGU\FRQWDFWWRWKHWHUPLQDOVPDUNHGSETBACK- 35,36.
33 35
2
34 36
37 38
y
PROVE
SHUTDOWN
/TSTAT
/SETBACK
Auxiliary
Input3
Setback
Dry Contact
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 7KH3URYHIHDWXUHLVSURYLGHGWRFKHFNV\VWHPFRPSRQHQWRSHUDWLRQEHIRUHHQHUJL]LQJWKHVWDJHV,WFDQEH
used to check on the Combustion Air Damper by connecting it to the end switch of the damper. In this case, the
Comb. Air Output option must be activated from the Startup Menu on page 1.
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2XWSXW$W\SLFDOXVHRIWKLVIHDWXUHLVWRFKHFNIRUV\VWHPFRPSRQHQWVEHIRUHHQHUJL]LQJDQ\VWDJH
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All stage outputs will be off.
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replaced by a Prove signal.
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be placed across the PROVE terminals
Prove
Dry Contact
5
36
37 38
PROVE
TSTAT
E
TBACK
:$51,1*
7KH3529(LQSXWFDQQRWEHXVHGDVDVDIHW\OLPLW$OOHTXLSPHQWPXVWKDYHLWVRZQFHUWL¿HGOLPLWDQGVDIHW\
controls as required by local codes. No boiler stage will start unless Prove terminals are shorted. DO NOT remove
the PROVE jumper supplied unless replacing it with a Prove signal.
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 1RVWDJHRXWSXWVZLOOEHDFWLYDWHGXQWLOWKHPROVE input is shorted.
 7KH6\VWHPRXWSXWUHOD\LVD1RUPDOO\2SHQ12GU\FRQWDFW,WGRHVQRWVRXUFHDQ\SRZHU
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21
0
22
23 24
S
AUX
OUT
COMB.
AIR
Comb.
Air
Damper
L
N
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 The BCP-8S can control the Combustion Air Damper when the Comb. Air Output option is activated in the
Startup Menu (See page 1). In this scenario, the PROVE input will be used to check on the Combustion Air
Damper status.
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boiler stages.
 7KH&RPE$LURXWSXW relay is a Normally Open (N.O.) dry contact. It does not source any power.
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