Daikin DX unit

[eire1]

Hey guys, would you have a wiring diagram for two boards *I'm at a unit, a Hi-Velocity HV-100BU AHU indoor with a RZQ140B8W1B outdoor. Complaint it won't heat but I can't get the condenser to run. Only details I see are FBQ35-60B7V1 and an EC9509D. Any ideas? Calling for full heat but the condenser just sits there.

[Brian_UK]

Has the RZQ unit had the software updated? B series had poor inverter/fan control.

[frank]

Hey guys, would you have a wiring diagram for two boards *I'm at a unit, a Hi-Velocity HV-100BU AHU indoor with a RZQ140B8W1B outdoor. Complaint it won't heat but I can't get the condenser to run. Only details I see are FBQ35-60B7V1 and an EC9509D. Any ideas? Calling for full heat but the condenser just sits there.

I've installed and serviced/repaired lots of Daikin but can't understand your setup?

Hi-Velocity HV-100BU AHU...not familiar with this

with a RZQ140B8W1B outdoor...not sure how you can pair this with the AHU?

FBQ35-60B7V1 and an EC9509D...this doesn't make any sense?

Do you have different model numbers so far away from those in England?

[eire1]

Doubt it, it was our 1st time on site today and the unit looks like it hasn't been serviced in a good good while.

[eire1]

It's a Daikin condenser used as a heat pump to a coil on an AHU. The controllers are April Air, AHU is Hi-Velocity. It's the strangest set up I've ever seen. They're both wired into a panel with 2 Daikin boards. The 2 codes are the only info I can see on the boards.

[Brian_UK]

I've seen these set ups before, condenser feeding the ahu coil using the pcb control board from a daikin unit, sort of worked.

[frank]

That's the ERQ model condenser and AHU controller

[al]

Its a board from a ducted unit i think, hi velocity units, bunch of them installed here, quare ****e. First check you have correct voltage at outdoor, and that neutral is properly connected. Indoor stat feeds to board to call outdoor, can you hook a standard daikin controller to the indoor board and test run unit?

[frank]

Here's a link to the Daikin info http://www.daikin.co.uk/binaries/DEU...11-367499.docx

[alicechan11]

Hey guys, would you SEO have a wiring diagram for two boards *I'm at a unit, a Hi-Velocity HV-100BU AHU indoor with a RZQ140B8W1B outdoor. Complaint it won't heat but I can't get the condenser to run. Only details I see are FBQ35-60B7V1 and an EC9509D. Any ideas? Calling for full heat but the condenser just sits there.

thanks for sharing