AERCO AM Series Boiler Cascade Sequencer Controller - Manual (Page 13)

AM Series Cascade Sequencer
INSTALLATION AND OPERATION MANUAL
1.3.3 Manager Heater Preparation - S4 Switch on the Burner #1 Board
The S4 switch on the Burner #1 (Master) board must be set to OFF as described below.
Setting Manager Heater Burner #1 (Master) S4 Switch
1. Gain access to the Burner #1 (Master) Board and S4 switch by removing the front cover of
managing unit. Note the location of the Burner #1 (Master) Board in Figure 1-14 (it is cyan
colored in the image).
NOTE
The model shown in Figure 1-14 is the AM1000. The AM750 does
not feature Burner Board #2. In the AM399 and AM500 models,
the #1 (Master) Burner board is the one on the BOTTOM.
2. Locate S4 switch opening on upper right of #1 burner board (Figure 1-14) and use a small
flathead screwdriver set to switch to OFF (UP) per Figure 1-14 detail.
Figure 1-14: Locating Burner #1 (Master) Board and Setting S4 Switch
Burner #1 (Master) Board
ON
OFF
Burner #2 Board (Not Present in
AM750 Units)
STEP 2: Set S4 Switch to OFF (UP)
(Board Cover removed for clarity)
S4
Switch
Burner #3 Board
Burner #4 Board
OMM-0101_0A AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 13 of 26
GF-146-CS Ph.: 800-526-0288 PRI - 11/25/14