Page 49
7.H Logic Diagrams
R1
N
L1
M1
OFF
ON
A
R1
POWER INDICATOR
POWER SWITCH
BLOWER CONTACTOR
TB 120VAC
120N
120L
BLOWER MOTOR
120VAC (1PH/60Hz)
24VAC TRANSFORMER
TB 120VAC
TB 24VAC
(24VDC)
SAFETY CHAIN
120N
24N
GAS VALVE
CONTROLLER
BOILER/HEATER
LWCO
CONTROLLER
BOILER/HEATER
120L
24V
CB
X4-13
(NOT INCLUDED)
DRY CONTACT
SYSTEM PUMP
BOILER PUMP
MRHL
DRY CONTACT
DHW PUMP
(OPTIONAL)
X4-19
X4-16
SPARE
LOW GAS PRESSURE
X14-11
X14-1
X4-12
X14-10
LWCO
X4-15
TB1-7
X4-18
MAIN VALVE
(OPTIONAL)
X4-9
X4-6
X4-3
TB1-20
TB1-22
TB1-17
ROD
FLAME
P1
X4-2
X4-11
X4-5
X9-3
X4-8
X4-14
X12-4
X4-17
TB1-18
X14-4
FLOW
X14-3
X4-1
TB1-19
TB1-21
X14-8
ARHL
SPARK
X12-3
X4-7
X4-4
(OPTIONAL)
GAS VALVE
RELAY INTERLOCK
GENERATOR
X15-4
SPARK
IGNITOR
CONDENSATE
HIGH GAS PRESSURE
GND
4
3
2
1
Flue
1
2
3
4
Dual Element
X1-2
X1-14
X1-1
X1-15
X1-3
X1-1
20k
10k
20k
10k
Dual Element
INSTALLED
FACTORY
Inlet
1
2
X1-13
X1-1
Sensor
Sensor
Sensor
Outlet
OUTPUTS
POWER
DHW
TB1-20
TB1-19
TB1-18
TB1-22
TB1-21
TB1-17
System
Pump
Pump
Pump (L)
Boiler (N)
(OUTPUTS)
SENSOR
DRY
CONTACTS
TB1-27
TB1-26
TB1-25
TB1-24
TB1-23
TB1-32
TB1-30
TB1-29
TB1-28 BELL
ALARM
Spare 1
System
Return
System
Supply
Spare 2
Spare 2
Spare 1
HEAT
DEMANDS
DHW
CH1/DHW1
TB1-37
TB1-35
TB1-36
TB1-34
DHW/DHW3
TB1-43
TB1-41
TB1-42
TB1-39
TB1-40
TB1-38
Spare 1
Outdoor
Outdoor
INPUT
ANALOG
INPUTS
SPARE
RUN RELAY
ANALOG
OUTPUT
TB1-47
TB1-48
TB1-45
TB1-46
TB1-44
N.O.
N.C.
TB1-53
TB1-51
TB1-52
TB1-49
TB1-50
Spare 2
Spare 2
Spare 1
0-10V(+)
Pump(-)
Common
0-10V (+)
BMS (-)
INPUTS
DHW
TB1-33
DRY CONTACTS
RS485
CASCADE
BMS
RS485
BMS
RS485
N.C.
N.O.
B
A
TB1-58
TB1-57
TB1-58
TB1-55
TB1-56
A
B
GND
GND
TB1-61
TB1-62
TB1-60
TB1-60
TB1-59 GND
TB1-59
ALARM RELAY
DRY CONTACTS
Common
TB1-54
CH1/DHW1
CH2/DHW2
CH2/DHW2
DHW/DHW3
ENCLOSURE FAN
LOW VOLTAGE PANEL
HEAT DEMANDS
(24VDC)
DHW
TB1-39
TT-2
TB1-37
TT-1
TB1-35
DHW
TT-2
TT-1
TB1-40
TB1-38
TB1-36
TB1-31
NOTES:
1. FOR SOURCE FILE, REFERENCE SOLIDWORKS ELECTRICAL PROJECT 34,
DRAWING NUMBER E23841.
SHEET 1 OF 1
B
DWG. NO:
SOFTWARE
INTENDED SIZE:
SCALE: NONE
0060
PROJECT #
D
C
B
A
B
C
D
1
REV.
APPROVALS
DRAFT
ENGR
APPR
2
3
4
4
3
2
1
BY LAARS HEATING SYSTEMS CO.
DG 3/7/19
17-152N-03
A
UPDATED TO ADD FAN TO CONTROL PANEL
CHECK
DRAFT
ECN
ENGR APPR
APPR
CHANGE:
TITLE:
DISCLOSED TO OTHERS FOR MANUFACTURING OR ANY OTHER
SH 3/7/19
REV.
REVISIONS
RR 3/7/19
SH 7MAY18
S
1
A
E23841
JM 7MAY18
.010
DECIMALS .XX
LOGIC DIAGRAM, 120V 1 PHASE,
N/A
FINISH
MATERIAL:
TOLERANCES ARE:
REPRODUCED, TRANSFERRED TO OTHER DOCUMENTS, USED OR
DECIMALS .XXX
.1
1/8"
PURPOSE EXCEPT AS SPECIFICALLY AUTHORIZED IN WRITING
OMT 1.25 - 2.5
FRACTIONS
.03
DECIMALS .X
DIMENSIONS ARE IN INCHES.
UNLESS OTHERWISE SPECIFIED:
THIS DOCUMENT AND THE INFORMATION CONTAINED HEREIN ARE
PROPRIETARY TO LAARS HEATING SYSTEMS CO.AND SHALL NOT BE
ANGLES
DO NOT SCALE DRAWING.
THIRD ANGLE PROJECTION.
N/A
Figure 22. Logic Diagram 120V 1 Phase up to 2000
The
O
MNI
T
HERM
Содержание OMNITHERM ONH1250
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