RTH7000 help - http://www.hvacmechanic.com/ Forums

Original message

nasdurus

74.214.39.188

"RTH7000 help" , posted Fri 4 Jul 13:54

Upgrading my thermostat, currently i have a "Robertshaw 9520". I just bought a honeywell RTH7000. Having some trouble on the wireing any help would be great, thanks.
http://www.geocities.com/blahbla123456/THERM.jpg

Replies:

Houston204

98.196.66.53

"Re(1):RTH7000 help" , posted Fri 4 Jul 15:03

C = blue
G = green
Y = yellow
O/B = orange
Rc & R = red
Aux = white
E = brown

Wire it as shown here except that it looks like your E may be brown.

You must configure this stat for heat pump operation.
option 170 = 7
option 190 = 0
240 = 9 (if you have electric heat backup)

"Tip of the Day" Remember to remove power first.

Nasdurus

74.214.39.188

"Re(2):RTH7000 help" , posted Fri 4 Jul 20:33

Well wired it all up like the pretty picture, i got nothing working, no AC, Fan, or Heat. Did i trip something perhaps, I've checked the breaker in my primary fuse box. any ideas?

Houston204

98.196.66.53

"Re(3):RTH7000 help" , posted Fri 4 Jul 22:06

Tip of the day, remember to remove power first.

Everything but Ruud, Rheem, American Standard, and Trane will probably need a blade type automotive fuse in the circuit board to your indoor unit, 3 or 5 amp.

The 4 listed brands don't always have a fuse and may need a transformer.

Trane fancoils used a 3 2/10 amp buss fuse

Some fancoils have a low voltage reset button...

If your fancoil is almost 20 years old it will probably need a transformer.

"Tip of the Day" Remember to remove power first.

Nasdurus

74.214.39.188

"Re(4):RTH7000 help" , posted Fri 4 Jul 23:12

The fuse did it. Thanks so much for your help

learner

70.73.177.71

"Re(5):RTH7000 help" , posted Sun 6 Jul 13:28

Hi,
Please tunr off power first whenever you work on the system.