Results 1 to 12 of 12
Thread: r22 used in r407c rooftop unit.
-
18-07-2008, 02:41 PM #1
Registered User
Hey, I am new to : RE
- Join Date
- Jul 2008
- Location
- usa
- Posts
- 6
- Rep Power
- 0
r22 used in r407c rooftop unit.
I have a rooftop unit that was accidentally filled with R22. It is labeled R407c, unit now will not work, what needs to be done to get the R22 out and back to R407c?
-
18-07-2008, 02:50 PM #2
Moderator
Site Moderator : and general nice guy
- Join Date
- Sep 2003
- Location
- ISRAEL
- Age
- 72
- Posts
- 4,248
- Rep Power
- 46
Re: r22 used in r407c rooftop unit.
You do not need to take it out, it will work now better,
Not starting has nothing to do with the type of gas.
-
18-07-2008, 03:57 PM #3
Registered User
I am just settling in to : RE
- Join Date
- Mar 2006
- Location
- Merate (LC) - Italy
- Age
- 53
- Posts
- 2,549
- Rep Power
- 24
Re: r22 used in r407c rooftop unit.
At least remove the c o cktail and fill it up with just R22, if you prefer that. Nothing else. POE oil is compatible with R22.
Last edited by NoNickName; 18-07-2008 at 03:57 PM. Reason: c o cktail is not a bad word. Unnecessary censorship
-
18-07-2008, 05:04 PM #4
Registered User
Hey, I am new to : RE
- Join Date
- Jul 2008
- Location
- usa
- Posts
- 6
- Rep Power
- 0
Re: r22 used in r407c rooftop unit.
Unit has two compressors one tested w/R407C works , the one now w/ R22 runs but high presser line very hot compared to the R407c and the return line is warm. The air in duct is 75 f.
-
18-07-2008, 05:33 PM #5
Veteran Poster
I am starting to push the Mods: of RE
- Join Date
- Feb 2008
- Location
- Las Vegas, NV
- Age
- 67
- Posts
- 330
- Rep Power
- 17
Re: r22 used in r407c rooftop unit.
joe,
Originally Posted by just joe
Why was the unit serviced*?
It could just be having the same symptons it had before it was serviced*.
*(commissioned for you UK gents)
-
18-07-2008, 06:18 PM #6
Registered User
I am just settling in to : RE
- Join Date
- Mar 2006
- Location
- Merate (LC) - Italy
- Age
- 53
- Posts
- 2,549
- Rep Power
- 24
Re: r22 used in r407c rooftop unit.
TXV probably need adjustment, as the bulb is selected for R407c and not R22. Originally Posted by just joe
-
18-07-2008, 07:21 PM #7
Moderator
I am starting to push the Mods: of RE Site Moderator : and general nice guy
- Join Date
- Mar 2001
- Location
- Dorset
- Age
- 76
- Posts
- 11,024
- Rep Power
- 60
Re: r22 used in r407c rooftop unit.
Does the system have both gases in it, R22 and R407C, ??
Brian - Newton Abbot, Devon, UK
Retired March 2015
-
18-07-2008, 10:20 PM #8
rookie poster
- Join Date
- Jun 2008
- Location
- South Carolina
- Age
- 52
- Posts
- 18
- Rep Power
- 0
Re: r22 used in r407c rooftop unit.
- Exactly, If half the evap coil is cold, its starved, go two turns counter clockwise. Adjust from there. If evap coil, and suction line are all same temp back all the way to the compressor, this would be a flooded condition- tighten the txv adjuster clockwise two turns. But none of this will matter unless there is a usable charge of 22 in the system-not over or under charged capice? Originally Posted by NoNickName
-
21-07-2008, 01:02 PM #9
Registered User
Hey, I am new to : RE
- Join Date
- Jul 2008
- Location
- usa
- Posts
- 6
- Rep Power
- 0
Re: r22 used in r407c rooftop unit.
Leak. unit was pumped out and fixed pumped down and refilled w/r22
-
23-07-2008, 01:33 PM #10
Registered User
Hey, I am new to : RE
- Join Date
- Jul 2008
- Location
- usa
- Posts
- 6
- Rep Power
- 0
Re: r22 used in r407c rooftop unit.
Leak. unit was pumped out and fixed pumped down and refilled w/r22
-
23-07-2008, 01:34 PM #11
Registered User
Hey, I am new to : RE
- Join Date
- Jul 2008
- Location
- usa
- Posts
- 6
- Rep Power
- 0
Re: r22 used in r407c rooftop unit.
will poe oil work w/r22
-
23-07-2008, 01:35 PM #12
Registered User
Hey, I am new to : RE
- Join Date
- Jul 2008
- Location
- usa
- Posts
- 6
- Rep Power
- 0
Re: r22 used in r407c rooftop unit.
no only r22 but the poe oil was not changed
Similar Threads
-
MICROPROCESSOR DIAGNOSTICS/Differnces beteween TK/CTC
By REEFER-TEK in forum TransportReplies: 12Last Post: 27-03-2011, 04:12 AM -
SL/SB-400 Pump Down Procedures
By absolute-zero in forum TransportReplies: 1Last Post: 29-01-2008, 09:27 PM -
Thermo King OptiSet
By REEFER-TEK in forum TransportReplies: 4Last Post: 06-12-2007, 07:23 PM -
TK basic micro-p features and functions
By REEFER-TEK in forum TransportReplies: 0Last Post: 05-12-2007, 06:25 PM -
Charging a/c unit using R407C
By carlfoster in forum FundamentalsReplies: 22Last Post: 03-03-2007, 11:09 AM
