lp-505 Rev. 000 Rel. 015 Date 1.7.20
45
Connector
Description
HT SELV
No. of Location
Pin
Board Silk
CN7
LWD1140-14
1
F.S
Flame Sensor
SELV (5V)
8
2
OP.S
Outlet Operating Water Temperature Sensor
9
3
DH.S
DHW Temperature Sensor
10
4
I.S
Inlet Water Temperature Sensor
11
5
BG.S
Exhaust Temperature Sensor
12
6
ST.S
UNUSED
13
7
SP.S
UNUSED
14
CN12
SMW250-07
1
AGM
AGM Stepper Motor Coil / Y Phase
SELV (24V)
2
3
AGM Stepper Motor Coil / X Phase
4
5
GND
6
AGM Stepper Motor Position
SELV (14V)
7
VDD
SELV (24V)
CN10
SMW250-08
1
DHM
(Mixing Valve)
DHM Stepper Motor Coil / Y Phase
SELV (14V)
2
3
DHM Stepper Motor Coil / X Phase
4
5
GND
6
DHM Stepper Motor Position
7
UNUSED
8
VDD
CN14
SMW250-09
1
IWM
(Flow Control Valve)
GND
2
IWM Stepper Motor Position
3
VDD
4
IWM Stepper Motor Coil X Phase
5
IWM Stepper Motor Coil Y Phase
6
VDD
7
IWM Stepper Motor Coil X Phase
8
IWM Power IWM Stepper Motor Coil Y Phase
9
UNUSED
-
CN3
SMW250-06
1
WPS
UNUSED
2
3
4
FLUX1
VCC
SELV (5V)
5
Water Flow Sensor
6
GND
CN5
SMW250-10
1
RPM
Fan RPM Check
2
GND
Table 24 - Water Heater Wiring 2
Summary of Contents for Hydra Smart RT-199
Page 40: ...lp 505 Rev 000 Rel 015 Date 1 7 20 40 Figure 38 150 Model Electrical Wiring Diagram ...
Page 41: ...lp 505 Rev 000 Rel 015 Date 1 7 20 41 Figure 39 150 Model Ladder Diagram ...
Page 42: ...lp 505 Rev 000 Rel 015 Date 1 7 20 42 Figure 40 199 Model Electrical Wiring Diagram ...
Page 43: ...lp 505 Rev 000 Rel 015 Date 1 7 20 43 Figure 41 199 Model Ladder Diagram ...