P-K MACH
®
Gas Fired Boiler
Technical Service 1.877.728.5351
Revised: January 3, 2020
Released: January 3, 2020
Patterson-Kelley 2020
All Rights Reserved.
1004905981 P-K MACH C1500H-C4000 Installation and
Owners Manual (Rev F Jan-2020).docx
Page 105
7.4.2 NURO Control Panel (C-2500, C-3000 & C-4000)
Mark
Description
Mark
Description
1
Ignition Cable
8
Push to Test LWCO Button
2
High Voltage (TB2) Terminal Block
9
Manual Reset Hi Temp Limit
3
Air Pressure Switch
10
Fuse / Circuit Breaker
4
High Exhaust Back Pressure Switch
11
On/Off Switch
5
SOLA Mainboard
12
LWCO Circuit Board
6
Transformer XFMR2 (40VA)
13
Low Voltage (TB1) Terminal Block
7
Transformer XFMR1 (20VA)
14
NURO Touchscreen Assembly
1
2
6
5
14
8
12
3
4
7
9
10
13
11