Burnham MPC User Manual
Page 41
 
1
Figure g: Internal Wiring Harness Components - Secure Harness to Vertical Channel
Insert first set of harness connectors through
opening	in	rear	of	secondary	junction	box.		Remove	
excess	slack	between	J-boxes	until	protective	sleeve	
is	centered	on	raw	edge	of	channel	extension,	secure	
harness	to	channel	using	nylon	wire	tie	No.	3,	see	
Figure	24f.
Use	remaining	nylon	cable	ties	to	secure	harness	
to	chaseway	channel	at	every	set	of	holes,	start	at	
wire	tie	No.	4	and	working	forward,	removing	slack	
at	each	juncture.		When	securing	harness,	do	not	
allow contact with side flanges on channels. Always 
position	harness	between	holes.
6. Determine routing of harness and secure to front
frame	channel	rails	based	on	burner	swing	door	
(BSD)	hinge	arrangement	determined	previously.		
Harness	can	be	secured	to	suit	any	of	the	following	
arrangements:
a. BSD with left hand hinge arrangement - harness
exits	left	side	of	jacket	front	panel	en	route	to	
control	panel.
b. BSD with left hand hinge arrangement - harness
exits	right	side	of	jacket	front	panel	en	route	to	
control	panel.
Boiler
Size
Harness Adjustment
Wire Tie
‘A’
Wire Tie
‘B’
Wire Tie
‘C’
Wire Tie
‘D’
4 Section
CUT
CUT
CUT
CUT
5 Section
CUT
CUT
CUT
---
6 Section
CUT
CUT
---
---
7 Section
CUT
---
---
---
8 Section
No Adjustment Required
9 Section
CUT
CUT
CUT
CUT
10 Section
CUT
CUT
CUT
---
11 Section
CUT
CUT
---
---
12 Section
CUT
---
---
---
13 Section
No Adjustment Required
14 Section
CUT
CUT
CUT
CUT
15 Section
CUT
CUT
CUT
---
16 Section
CUT
CUT
---
---
17 Section
CUT
---
---
---
18 Section
No Adjustment Required
Table IX: Internal Wiring Harness Adjustment