X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml Date: Fri, 04 Aug 2006 17:26:19 -0400 Message-ID: X-Original-Return-Path: Received: from imr-m03.mx.aol.com ([64.12.138.201] verified) by logan.com (CommuniGate Pro SMTP 5.1c.2) with ESMTP id 1300026 for lml@lancaironline.net; Fri, 04 Aug 2006 09:04:25 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.138.201; envelope-from=Sky2high@aol.com Received: from imo-m18.mx.aol.com (imo-m18.mail.aol.com [172.21.18.206]) by imr-m03.mx.aol.com (v107.10) with ESMTP id RELAYIN1-244d3442b1f; Fri, 04 Aug 2006 08:57:15 -0400 Received: from Sky2high@aol.com by imo-m18.mx.aol.com (mail_out_v38_r7.6.) id q.387.8fa018c (57293) for ; Fri, 4 Aug 2006 08:39:23 -0400 (EDT) From: Sky2high@aol.com X-Original-Message-ID: <387.8fa018c.320499fb@aol.com> X-Original-Date: Fri, 4 Aug 2006 08:39:23 EDT Subject: Re: [LML] Re: LR3C Regulator X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1154695163" X-Mailer: 9.0 Security Edition for Windows sub 5330 X-Spam-Flag: NO X-AOL-IP: 172.21.18.206 -------------------------------1154695163 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 8/4/2006 6:43:52 A.M. Central Standard Time, tthibaultsprint@earthlink.net writes: In general you are right. I looked for the document you showed and found the new version of it. It is the Operator's Manual, DWG 5-0164. It has the same chart and essentially the same words. The thing for us that matters is the operating temperature of the battery in flight. Those of us that have cabin mounted batteries should likely be operating in the 50-90 degrees F range. For that case, the voltage should be 14.0 to 14.2 per Concorde direction. In my case, the battery is on the engine side of the firewall at a much higher (currently unknown) temp. In that case, the voltage should be set at less than 13.75. I will be lowering mine to 13.6 most pronto until I get some of those temperature tapes so that I can find out the real temperature. Finally, the above is only about the battery operating temperature, not the LR3C temperature or mounting location. I verified all the above with an extremely helpful and friendly Concorde battery engineer on the phone just now. Tom, et al, Interesting. Note that the wiring diagram for the LR3C provides a terminal for an optional battery temperature probe: _http://www.bandc.biz/Lr3C_dgm.pdf_ (http://www.bandc.biz/Lr3C_dgm.pdf) A call to B&C would tell you if the regulated voltage is modified by the battery temperature or if it is just used to shut down the charging should the temp get too high. I use a B&C battery with a pristine LR3C regulator without difficulty. The battery is mounted in the cabin so the temps are human survivable and battery moderate. My LR3C is mounted on the forward face of the firewall with a small blast tube to keep it cool as the measured temperatures in its area have reached 70C (158F), the LR3C operating limit. Woulda, coulda, shoulda put it inside my wee cockpit. Scott Krueger AKA Grayhawk Lancair N92EX IO320 SB 89/96 Aurora, IL (KARR) Abnegate Exigencies! -------------------------------1154695163 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

In a message dated 8/4/2006 6:43:52 A.M. Central Standard Time,=20 tthibaultsprint@earthlink.net writes:

<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>In=20 general you are right. I looked for the document you showed and foun= d=20 the new version of it. It is the Operator's Manual, DWG 5-0164. = ; It=20 has the same chart and essentially the same words.

The thing for us= =20 that matters is the operating temperature of the battery in flight. =20 Those of us that have cabin mounted batteries should likely be operating i= n=20 the 50-90 degrees F range. For that case, the voltage should be 14.0= to=20 14.2 per Concorde direction. In my case, the battery is on the engin= e=20 side of the firewall at a much higher (currently unknown) temp. In t= hat=20 case, the voltage should be set at less than 13.75. I will be loweri= ng=20 mine to 13.6 most pronto until I get some of those temperature tapes so th= at I=20 can find out the real temperature.

Finally, the above is only about= the=20 battery operating temperature, not the LR3C temperature or mounting=20 location.

I verified all the above with an extremely helpful and=20 friendly Concorde battery engineer on the phone just=20 now.

Tom, et al,

Interesting. Note that the wiring diagram for the LR3C provides a= =20 terminal for an optional battery temperature probe:

http://www.bandc.biz/Lr3C_dgm.pdf=

A call to B&C would tell you if the regulated voltage is modified b= y=20 the battery temperature or if it is just used to shut down the=20 charging should the temp get too high.

I use a B&C battery with a pristine LR3C regulator withou= t=20 difficulty. The battery is mounted in the cabin so the temps are human= =20 survivable and battery moderate. My LR3C is mounted on the forward fac= e of=20 the firewall with a small blast tube to keep it cool as the measured=20 temperatures in its area have reached 70C (158F), the LR3C operating=20 limit.

Woulda, coulda, shoulda put it inside my wee cockpit.=20

Scott Krueger=20 AKA Grayhawk
Lancair N92EX IO320 SB 89/96
Aurora, IL=20 (KARR)

Abnegate Exigencies!

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