Replacing very old White Rogers thermostat

Need helps on replacing a very old White Roger Thermostat please!!!

I am going to replace the existing one (picture-1). As you can see the 2nd picture, 4 wires come out from the wall; White, Pink, Orage(?) and Black. The RC and RH are jumped together on the thermos.

The Pink one is connected to the RH.

The White one is connected to the W.

<img src="http://www.doityourself.com/forum/attachments/air-conditioning-cooling-systems/67229d1465787780-replacing-very-old-white-rogers-thermostat-white-roger-thermostat-panel-copy.jpg&quot; border="0" alt="Name: White Roger Thermostat Panel – Copy.jpg

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<img src="http://www.doityourself.com/forum/attachments/air-conditioning-cooling-systems/67230d1465787816-replacing-very-old-white-rogers-thermostat-white-roger-thermostat-wiring-copy.jpg&quot; border="0" alt="Name: White Roger Thermostat Wiring – Copy.jpg

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Size: 40.8 KB” />

I’m going to buy this one:

https://www.amazon.com/White-Rodgers…YD034WVBQ4RYTK

Here is the manual: http://www.emersonclimate.com/Docume…/0037-7260.pdf

I have a question about the BLACK and the ORANGE ones; how do I connect the 2 wires in the new one?

Appreciated for any helps!!!

Attached Images

  

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