5703827-XIM-A-0319
Johnson Controls Ducted Systems
17
Condensate drain
The side condensate drain can be ordered re-oriented to the rear of the cabinet to facilitate condensate piping. A condensate drain
connection is available through the base pan for piping inside the roof curb.
Note:
Plumbing must conform to local codes.
To install the connection, complete the following steps.
1.
Trap the connection according to Figure 15.
Note:
You must protect the trap and drain lines from freezing.
2.
Install the condensate drain line from the 1 inch NPT female connection on the unit to an open drain. Use a sealing compound
on male pipe threads.
Figure 15: Condensate drain
Compressors
The compressor used in this product is specifically designed to operate with R-410A refrigerant and cannot be interchanged.
The compressor also uses a refrigerant oil that is extremely hygroscopic, this means that it absorbs water readily. They can absorb 15
times as much water as other oils designed for HCFC and CFC refrigerants. Take all necessary precautions to avoid exposure of the oil
to the atmosphere.
R-410A compressor lubricants are known to cause long term damage to some synthetic roofing materials.
CAUTION
This system uses R-410A refrigerant that operates at higher pressures than R-22.
No other refrigerant may be used in this system.
CAUTION
Do not leave the system open to the atmosphere. Unit damage could occur if
moisture is absorbed by the refrigerant in the system. This type of oil is highly
susceptible to moisture absorption.
CAUTION
Exposure, even if immediately cleaned up, may cause embrittlement (leading to
cracking) to occur in one year or more. When you perform any service that may risk
exposure of compressor oil to the roof, take precautions to protect the roofing.
3 in. 76.2 mm minimum
