EMERGENCY
CUT-OFF
SWITCH
120 VOLTS AC, SINGLE PHASE, 60 HERTZ HOT
FROM 15 AMP CIRCUIT BREAKER OR FUSE. MAIN
DISCONNECT AND OVERCURRENT PROTECTION
PROVIDED BY OTHERS.
T
T
POWER SWITCH
(SHOWN OFF/RESET)
FIRE-O-MATIC
L1
CUT OUT
10
BLK
L8124C AQUASTAT
BLU
L8151A AQUASTAT
LOW V
TERM 2
CR 3
(on optional heat storage tank)
6
BLK
NOTE 1: SEE FIELD WIRING DIAGRAM FOR
PNK
LOW V
TERM 3
L 1
1
LO
CONNECTION OF T T TERMINALS IN L8124C AQUASTAT.
THESE TERMINALS MAY OR MAY NOT BE USED.
ZR
NOTE 1
NOTE 2: IF NO HEAT STORAGE TANK IS USED, PLACE
BLU
JUMPER BETWEEN LOW VOLTAGE TERMINALS 1&3.
CONNECT NOTHING TO LOW VOLTAGE TERMINAL 2.
NOTE 2
LOW V
TERM 1
GR
B1
HI
NOTE 3: MAX AUXILIARY 24 VAC POWER AVAILABLE
B2
AT LOW VOLTAGE TERMINALS 3 & 4 IS 38 VA.
C2
1K
L 2
CR 2
9
WHT
BRN
ORG
6
YEL
LO-OPEN
ON RISE
R
B
HI- OPEN
ON RISE
W
R
BACKUP
RED
5 MIN FAN
OVERRIDE
TIMER
B
BLU
BLU
40 VA TRANSFORMER
120 VAC PRIMARY
WT
MODE SELECTOR SWITCH
UP
Auto Backup
CENTER Wood Only (shown)
DOWN Backup Only
SMOKE
SENSOR
WARM
WHT
BLU
BRN
S1
S2
4
2
ORG
1
11
3
2
1
MOTORS BY OTHERS. TOTAL COMBINED MOTORS
FLA (FULL LOAD AMPS) SHALL BE 11 AMPS MAXIMUM.
CR 2
10
11
RED/BLK
BOILER
CALLING
ZC
NOTE 7: THERMAL OVERLOAD PROTECTION FOR
DELAY
CONTACT
CR 3
ORG
1K2
REFER TO APPROPRIATE FIELD WIRING
DIAGRAM FOR CONNECTION OF CIRCULATOR
MOTOR(S) TO TERMINALS C-1 AND/OR C-3.
NOTE 6:
PNK
S3
B1
CONNECTED TO THE LOW VOLTAGE T T TERMINALS
ON THE BACKUP BURNER. THE POWER SOURCE IS
THIS BURNER WHICH IS CONNECTED TO
TERMINALS "B" AND "N" IN THIS PANEL.
LOW V
TERM 4
NOTE 3
ZR
BLK
BE CONNECTED IN PARALLEL WITH THE HEAT DUMP
ZONE THERMOSTAT. RELAY CR-1 CONTACT 4-6 WILL
OVERRIDE THIS THERMOSTAT. THE POWER
SOURCE IS THE THERMOSTAT CIRCUIT.
14
NOTE 5: LOW VOLTAGE TERMINALS 7 AND 8 WILL BE
24 VAC SECONDARY
LO-CLOSE
ON RISE
13
YEL
AGC 2
2 amp Fuse
1K1
NOTE 4: LOW VOLTAGE TERMINALS 5 & 6 WILL
CR 3
CR 2
1
NOTE 8:
DELAY MODULE
POWER
3
CR 2
7
7
ELECTRICIAN MUST REFER TO APPROPRIATE FIELD WIRING DIAGRAM SPECIFIC TO THE
PLUMBING PLAN! THIS DIAGRAM IS SENT WITH THE
BOILER OR MAY BE REQUESTED FROM TARM USA, INC.
4
YEL/BLK
ORG/BLK
C1
NOTE 9:
WIRING EXTERNAL TO THE PANEL SHOWN
IN "DASH" BOXES. THE L8124C AND THE L6081A
AQUASTATS ARE PRE-WIRED TO THE PANEL. ALL
OTHER ITEMS IN DASH BOXES ARE BY OTHERS.
C-1
TAN
TAN
CR 3
8
120 V CIRCULATOR
4 FLA MAX
NOTE 6 & 7
CR 1
12
9
IN PANEL, LINE VOLTAGE WIRES ARE 14
GAUGE AND LOW VOLTAGE WIRES ARE 18 GAUGE.
(120 VOLT INDICATORS ARE WIRED WITH 18 GAUGE)
NOTE 10:
5
BLU
G
LO-CLOSE
ON RISE
CR 1
GROUND
13
14
R
BRN
120 VAC
GROUNDED
NEUTRAL
FROM SOURCE
ORG/BLK
R
WT
ORG
CR 1
8
BLU
6
CR 3
12
EXTERNAL LOW
VOLTAGE TERMINALS
(MAX 30 VOLTS AC)
LT\BLU
NOTE 4
9
5
PUR
8
The L8124C and the L6081A are located on the
boiler. The L8151A is located on the optional heat
storage tank. On all aquastats, the DIFF is the
operating differential for the "LO" setting. DIFF
shall be set to 10 degrees F.
25
CN
TARM USA Inc.
YEL
HI- OPEN
ON RISE
L2
Honeywell
Aquastat
Settings
C-3
W
B
120 V CIRCULATOR
4 FLA MAX NOTE 6 & 7
CR 2
8
F
Lyme, NH 03768
WIRING SCHEMATIC for
CONTROLS for EXCEL BOILER
N
2
RED
GRN
120 V FAN
2 FLA MAX
DATE:
NOTE 5
7
L8124C LO Set 210 degrees F. Boiler overheat circuit control.
Starts circulator C-3 and overrides room thermostat
for "dump zone" to dissipate excess heat.
HI Set 180 degrees F. Boiler operating temperature
for all modes.
FILE NAME: TarmExcel08
L8151A LO Set 150 degrees F. Temperature setting
B
at which oil or gas burner starts again
after heat storage tank has beeen heated
up to " HI" setting on L8151A and then
cooled down.
PUR
L6081A
AQUASTAT
6-26-08
NOTE 7
5
PUR
Ph. (603) 795-2214
120 V BURNER
6 FLA MAX NOTE 7
WHT
L6081A LO Set 165 degrees F. Temperature setting
at which circulator C-3 starts operating
for systems with heat storage tank.
HI Set 200 degrees F. Backup high
temperature limit for all modes.
HI Set 160 degrees F.
Heat Storage Tank
Operating Temperature when being
heated by oil or gas burner when the
boiler is in either the "BACKUP ONLY"
or the "AUTO BACKUP" operating mode.
for TARM EXCEL boiler control panel
- with circulator controlled heating zones
- with NO heat storage tank
TARM USA Inc.
FIELD WIRING
DIAGRAM
L8124C
AQUASTAT
(ON BOILER)
1
2
3
Jumper
Wire
T
T
T
T
T
T
4
5
JUMPER
B
D
E
F
G
F
G
F
6
A
GROUND NEUTRAL HOT
120 VOLT AC THERMALLY PROTECTED
HEATING ZONE CIRCULATORS
120 volt AC Power
PLEASE NOTE!!!
S1 S2 S3 C-1 CN C-3 B N F L1 L2 G G G
GAS SPILLAGE
SAFETY SWITCH
FOR GAS FIRED
BACK-UP BURNERS
CONNECTIONS
TACO SR502 & SR503
BROWN
BLUE
GROUNDS FOR
EQUIPMENT
SMOKE
TEMPERATURE
SENSOR
MULTIZONE
CIRCULATOR
RELAY PANEL
C
120 VOLT TERMINAL STRIP (IN PANEL)
C-3
CIRCULATOR
120 VOLT
THERMOSTAT
THIS DIAGRAM ASSUMES THAT THIS
THERMOSTAT IS FOR THE
"HEAT DUMP" (LARGEST) ZONE.
T
T
7
All wiring must comply
with current National
Electrical Code and
any other applicable
codes. Refer to
schematic included with
panel or page 25 in the
installation manual.
120 volt line voltage
wiring shall be a codeapproved type 14 gauge
minimum. Low voltage
wiring shall be18 or 20
gauge thermostat wire.
THERMOSTAT
8
NOTE:
EXTERNAL 24 VOLT TERMINAL STRIP
Rev. 6/20/08
THERMOSTAT
DRAFT FAN
120 VOLT
120 VOLT
POWER
T T
BACK-UP
OIL or GAS
BURNER
FIRE-O-MATIC THERMAL
CUT-OUT TO BE INSTALLED
WHERE REQUIRED BY CODE
EMERGENCY
CUT-OFF
SWITCH
120 VOLTS 60 HZ
HOT
AC POWER
NEUTRAL
FROM 15 AMP
CIRCUIT BREAKER GROUND
OR FUSE.
THIS DIAGRAM SERVES AS A GUIDE.
FOLLOW INSTRUCTIONS INCLUDED
WITH MULTIZONE RELAY PANEL.
TACO SR504, SR506,
SR503-EXP, SR504-EXP
SR506-EXP
ERIE SR201, SR301, & SR601
A Neutral
N
INPUT N
L2
______________________________________________________________________________________________________
B Hot
H
INPUT H
L1
______________________________________________________________________________________________________
C Circulator
Jump H to ZC & ZC to P
Jump ZC & ZR
Jump L1 & CP/ZC
Terminal
(Remove ZC to P for zone 1
_________________ priority)_____________________________________________________________________________
D&E Auxiliary
contacts provide
X1 X2/ZR
END SWITCH
X1 X2/ZR
closure when any
X X
zone calls for heat.
______________________________________________________________________________________________________
F Hot to individual CIRCULATOR H
One of the two terminals at
One of the two terminals
zone circulators
the “120 VOLT CIRCULATORS”
at “C1”, “C2”, “C3”, etc.
terminal block
terminal block
______________________________________________________________________________________________________
G Neutral to
One of the two terminals at
One of the two terminals
individual
CIRCULATOR N
the “120 VOLT CIRCULATORS”
at “C1”, “C2”, “C3”, etc.
zone circulators
terminal block (adjacent to above
terminal block (adjacent to
terminal)
above terminal)
T Thermostat
pairs
thermostats
Terminal
Connection
information
is based
onfor
TACO
INSTRUCTION
SHEET
102-082
through 102-088Terminal
dated 12/1/99
pairs
for thermostats
pairsand
forERIE
thermostats
Terminal
1," etc. atBB-20
at top
marked "ZONE
wiring
INSTALLATION
AND
OPERATING
INSTRUCTIONS
dated 7/99.
"ZONE 1," etc. marked " T1 T1," "T2 T2," etc.
top marked
24
Connection information is based on TACO INSTRUCTION SHEET 102-088 through 102-088 dated 12/1/99
and ERIE INSTALLATION AND OPERATING INSTRUCTIONS BB-20 dated 7/99.
G
For TARM EXCEL boiler control panel
when heat storage tank is being used.
TARM USA Inc.
FIELD WIRING
DIAGRAM
IN THIS AQUASTAT
USE ONLY THESE
3 TERMINALS !!!
Rev. 6/20/08
EXTERNAL 24 VOLT TERMINAL STRIP
1
NOTE:
All wiring must comply with
current National Electrical
Code and any other applicable
codes. Refer to schematic
included with panel or page 25
in the installation manual.
120 volt line voltage wiring
shall be a code-approved type
14 gauge minimum. Low
voltage wiring shall be18 or
20 gauge thermostat wire.
2
B1
ZR
L8151A
AQUASTAT
(ON TANK)
4
6
7
PLEASE NOTE!!!
8
BROWN
BLUE
BACK-UP
OIL or GAS
BURNER
T
MULTIZONE RELAY
PANELFOR A ZONE
VALVE SYSTEM OR
CIRCULATOR SYSTEM
5
DRAFT FAN
120 VOLT
T
THERMOSTAT
TERMINALS
END SWITCH
TERMINALS
GAS SPILLAGE
SAFETY SWITCH
FOR GAS FIRED
BACK-UP BURNERS
GROUNDS FOR
EQUIPMENT
120 VOLT
POWER
THERMOSTAT FOR
LARGEST HEATING
ZONE (HEAT DUMP ZONE)
END
SWITCH
MOTOR
3
S1 S2 S3 C-1 CN C-3 B N F L1 L2 G G G
SMOKE
TEMPERATURE
SENSOR
L8124C
T
AQUASTAT T
(ON BOILER)
L1
120 VOLT TERMINAL STRIP (IN PANEL)
C-3
C-1
CIRCULATOR
120 VOLT
ZV-1
FIRE-O-MATIC THERMAL
CUT-OUT TO BE INSTALLED
WHERE REQUIRED BY CODE
EMERGENCY
CUT-OFF
SWITCH
120 VOLTS 60 HZ
HOT
AC POWER
NEUTRAL
FROM 15 AMP
CIRCUIT BREAKER GROUND
OR FUSE.
FOLLOW WIRING INSTRUCTIONS INCLUDED
WITH MULTIZONE RELAY PANEL.
for TARM EXCEL boiler control panel
- with zone valve controlled heating zones
- with NO heat storage tank
TARM USA Inc.
FIELD WIRING
DIAGRAM
COIL
2
T T
4
3
Jumper
Wire
COIL
6 5
ROOM
THERMOSTAT
END
SWITCH
S1 S2 S3 C-1 CN C-3 B N F L1 L2 G G G
BROWN
BLUE
DRAFT FAN
120 VOLT
120 VOLT
POWER
T
T
BACK-UP
OIL or GAS
BURNER
24.1
FIRE-O-MATIC THERMAL
CUT-OUT TO BE INSTALLED
WHERE REQUIRED BY CODE
ROOM
THERMOSTAT
GAS SPILLAGE
SAFETY SWITCH
FOR GAS FIRED
BACK-UP BURNERS
GROUNDS FOR
EQUIPMENT
SMOKE
TEMPERATURE
SENSOR
TACO
ZONE
VALVE
COIL
120 VOLT TERMINAL STRIP (IN PANEL)
C-3
CIRCULATOR
120 VOLT
END
SWITCH
TACO
ZONE
VALVE
7
All wiring must comply
with current National
Electrical Code and
any other applicable
codes. Refer to
schematic included with
panel or page 25 in the
installation manual.
120 volt line voltage
wiring shall be a codeapproved type 14 gauge
minimum. Low voltage
wiring shall be18 or 20
gauge thermostat wire.
ROOM
THERMOSTAT
8
NOTE:
L8124C
AQUASTAT
(ON BOILER)
1
EXTERNAL 24 VOLT TERMINAL STRIP
Rev. 6/20/08
THIS DIAGRAM ASSUMES THAT
THIS THERMOSTAT IS FOR THE
"HEAT DUMP" (LARGEST) ZONE.
IF MORE THAN 2 ZONE VALVES ARE
REQUIRED, CONNECT TO ADDITIONAL
TRANSFORMER AS SHOWN BELOW LINE.
(3 ZONE VALVES PER 40 VA TRANSFORMER
OR AS SPECIFIED BY COMPONENT MFG.)
END
SWITCH
TACO
ZONE
VALVE
120 VAC POWER
HOT
NEUT.
EMERGENCY
CUT-OFF
SWITCH
120 VOLTS 60 HZ
HOT
AC POWER
NEUTRAL
FROM 15 AMP
CIRCUIT BREAKER GROUND
OR FUSE.
COIL
40 VA
TRANSFORMER
ROOM
THERMOSTAT
END
SWITCH
TACO
ZONE
VALVE
PLEASE NOTE!!
THIS DIAGRAM SERVES AS A GUIDE.
FOLLOW INSTRUCTIONS INCLUDED
WITH ZONE VALVES.
COIL
ROOM
THERMOSTAT
END
SWITCH
TACO
ZONE
VALVE