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D
E S I G N E D
BWC Series
AM4 Module Installation Instructions
These instructions are intended for use by a qualified heating service technician
only. Do not attempt to revise the control module parameters unless you have read
and fully understand these instructions. Altering the control parameter settings can
result in unreliable operation, property damage, personal injury, or loss of life.
Tel: (215) 535-8900 • Fax: (215) 535-9736 • www.crownboiler.com
WARNING
Manufacturer of Hydronic Heating Products
D
E S I G N E D
P.O. Box 14818 3633 I. Street
Philadelphia, PA 19134
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Summary of Contents for Crown Boiler AM4
- Page 1 E S I G N E D E A D BWC Series AM4 Module Installation Instructions WARNING These instructions are intended for use by a qualified heating service technician only. Do not attempt to revise the control module parameters unless you have read and fully understand these instructions.
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Page 3: Table Of Contents
TABLE OF CONTENTS AM4 Installation For BWC070/090/120 AM4 Installation For BWC150/225 Reprogramming Parameter 34 Checking AM4 Operation AM4 Installation Kit Parts List... -
Page 4: Am4 Installation For Bwc070/090/120
To remove the AM4 cover, insert a small flat blade screwdriver into the slot located on the tapered end of the control and lift the cover off. Attach the AM4 base to the AM4 mounting bracket using two #8-32 x 3/4 screws and hex nuts as shown in Figure 1.1. -
Page 5: Am4 Installation For Bwc150/225
To remove the AM4 cover, insert a small flat blade screwdriver into the slot located on the tapered end of the control and lift the cover off. Attach the AM4 base to the inside of the jacket panel using two #8-32 x 3/4 screws and hex nuts as shown in Figure 1.3. -
Page 6: Reprogramming Parameter
Using the Gascom PC Interface To make this change using Gascom, select parameter “34 CH type (2nd digit)” and scroll to the “0-10V analog on AM4: capacity” setting and click OK. Then write the parameter file to the MCBA by selecting the “Write to MCBA” option. -
Page 7: Checking Am4 Operation
DHW thermostat over-rides the AM-4. When the alarm contacts on the AM4 are used (see Figure 1.5), the MCBA will close the alarm contacts and activate the alarm upon any hard lockout error code. The contacts will remain open during soft lockouts. To check the alarm function, turn off power to the boiler and unplug the connector at the low water cut-off. - Page 8 Figure 1.4: Use Of AM4 With Multiple Boiler Control...
- Page 9 Figure 1.5: AM4 Alarm Wiring...
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Page 10: Am4 Installation Kit Parts List
AM4 Installation Kit Parts List Decscription AM4 Module 3501080 Short Ribbon Cable 9602308 Long Ribbon Cable 9602400 AM4 Mounting Bracket 230430 #8-32 x 1/2” Machine Screw 90-052 #8-32 Hex Nut 90-053 #10 x 1/2” Sheet Metal Screw 90-212 Ribbon Cable Clip... - Page 11 Manufacturer of Hydronic Heating Products E S I G N E D E A D P.O. Box 14818 3633 I. Street Philadelphia, PA 19134 Tel: (215) 535-8900 • Fax: (215) 535-9736 • www.crownboiler.com PN: 980038 02/07...
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