Subject: From: Date:

Re: [ECS] Thermostat Selection questions peter kraus Sat, 17 Apr 1999 23:33:16 -0400

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yes
of course if you are replacing existing termostats then you probably have
the 4 wires from the hvac end, that was my case. I just added the extra run
to my automation closet.


-----Original Message-----
From: Bill Walters <wtwalters@home.com>
To: ecs-list@netbloc.com <ecs-list@netbloc.com>
Date: Saturday, April 17, 1999 7:57 PM
Subject: Re: [ECS] Thermostat Selection questions


:Peter,
:
:Just so I understand:
:
:1. Stand Alone (not connected to HA system)
:
:    RC-80 <---- 4 wires ---->  HVAC unit
:
:
:
:2. If it is to be used with to ECS:
:
:       +------------- 4 wires to HVAC System
:     RC-80
:       +------------- 4 wires to ECS system
:
:
:Which means 8 wires to each thermostat (4 to HVAC, 4 to ECS) for using
:with ECS.  And, each must be on its OWN serial port.
:
:
:Is this correct?
:
:
:Bill Walters

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