Weil-McLain BCP-8X - Manual (Page 10)

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‡ 7KLVIHDWXUHFDQEHXVHGZKHQHYHULWLVGHVLUDEOHWRVZLWFKWKH%&36WRRSHUDWHIURPDUHPRWHORFDWLRQLH
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
.
‡ :KHQWKH7VWDWLVHQDEOHGE\FORVLQJDGU\FRQWDFWWKH%&36ZLOODFWLYDWHWKHKHDWLQJORJLF
‡ 7KH7VWDWVLJQDOPXVWEHDGU\FRQWDFWRQO\1RYROWDJHFDQEHSODFHGDFURVVWKHTSTAT terminals.
‡ %ULQJWKHWZRZLUHVIURPWKHGU\FRQWDFWWRWKHWHUPLQDOVPDUNHGTSTAT- 35,36.
‡ :KHQ7VWDWLVVHOHFWHG6HWEDFNZLOOEHDYDLODEOHXVLQJWKHSURJUDPPHG'D\1LJKWVFKHGXOH
33 35 2 34 36 37 38
y PROVE
SHUTDOWN
/TSTAT
/SETBACK
Auxiliary
Input3
T
-Stat
Dry Contact
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‡ 7KLVIHDWXUHZLOORQO\EHDYDLODEOHZKHQ6HWEDFNLVVHOHFWHGDVWKH([WHUQDO,QSXW0RGHRSWLRQIURPWKH6WDUWXS
menu on page 1
.
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input or external time clock). No Day/Night scheduling options will be available with this feature.
‡ :KHQWKH6HWEDFNLVHQDEOHGE\FORVLQJDGU\FRQWDFWWKH7DUJHWZLOOEHUHGXFHGE\WKH6HWEDFNYDOXH
‡ 7KH6HWEDFNVLJQDOPXVWEHDGU\FRQWDFWRQO\1RYROWDJHFDQEHSODFHGDFURVVWKHSETBACK terminals.
‡ %ULQJWKHWZRZLUHVIURPWKHGU\FRQWDFWWRWKHWHUPLQDOVPDUNHGSETBACK- 35,36.
33 35 2 34 36 37 38
y PROVE SHUTDOWN
/TSTAT
/SETBACK
Auxiliary
Input3
Setback Dry Contact
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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$W\SLFDOXVHRIWKLVIHDWXUHLVWRFKHFNIRUV\VWHPFRPSRQHQWVEHIRUHHQHUJL]LQJDQ\VWDJH
‡ ,IWKH3529(LQSXWLVRSHQRQDFDOOWKH%&36ZLOOHQDEOHRQO\WKH6\VWHPDQG&RPE$LU2XWSXWUHOD\V
All stage outputs will be off.
‡ $IDFWRU\LQVWDOOHGMXPSHUSURYLGHVWKH6\VWHP3URYHVLJQDO'RQRWUHPRYHWKHMXPSHUXQOHVVLWZLOOEH
replaced by a Prove signal.
‡ %ULQJWKHWZRZLUHVIURPWKHSURYHGU\FRQWDFWVRXUFHWRWKHWHUPLQDOVPDUNHGPROVE - 37, 38. No voltage can
be placed across the PROVE terminals
Prove Dry Contact
5 36 37 38
PROVE TSTAT
ETBACK
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controls as required by local codes. No boiler stage will start unless Prove terminals are shorted. DO NOT remove
the PROVE jumper supplied unless replacing it with a Prove signal.
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ZKHQHYHUDVWDJHRXWSXWLVDFWLYH,IQRRXWGRRUVHQVRULVFRQQHFWHGDQGWKHODVWERLOHUUHOD\KDVGHHQHUJL]HG
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‡ 1RVWDJHRXWSXWVZLOOEHDFWLYDWHGXQWLOWKHPROVE input is shorted.
‡ 7KH6\VWHPRXWSXWUHOD\LVD1RUPDOO\2SHQ12GU\FRQWDFW,WGRHVQRWVRXUFHDQ\SRZHU
‡ &ODVVYROWDJHVPXVWHQWHUWKHHQFORVXUHWKURXJKDGLIIHUHQWRSHQLQJIURPDQ\&ODVVYROWDJHZLULQJ 21 0 22 23 24
S
AUX
OUT COMB.
AIR
Comb.
Air
Damper
L
N
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‡ The BCP-8S can control the Combustion Air Damper when the Comb. Air Output option is activated in the
Startup Menu (See page 1
). In this scenario, the PROVE input will be used to check on the Combustion Air
Damper status.
‡ 7KH%&36ZLOOHQHUJL]HWKH&RPEXVWLRQ$LU'DPSHUUHOD\ZKHQHYHUWKHUHLVDFDOOWRHQHUJL]HDQ\RIWKH
boiler stages.
‡ 7KH&RPE$LURXWSXW relay is a Normally Open (N.O.) dry contact. It does not source any power.
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