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30 Digital ( TE ) Series - 60Hz
Tranquility
®
R e v . : M a r c h 2 0 , 2 0 2 3
Unit Start-Up Procedure, Cont'd.
Water Flow, gpm (l/m)
For Closed Loop: Ground Source or Closed
Loop Systems at 3 gpm per ton (3.9 l/m per kw)
For Open Loop: Ground Water Systems at
1.5 gpm per ton (2.0 l/m per kw)
c.
Verify that the compressor is on and that the
water temperature fall (heating mode) is within
normal range.
d.
Check for vibration, noise, and water leaks.
8.
If unit fails to operate properly, perform troubleshooting
analysis (see troubleshooting section in the unit IOM).
If the check described fails to reveal the problem and
the unit still does not operate, contact a trained service
technician to insure proper diagnosis and repair of the
equipment.
9.
When testing is complete, exit the Installer Menu and
set thermostat to maintain desired comfort level for
normal operation.
10. BE CERTAIN TO FILL OUT AND RETURN ALL
WARRANTY REGISTRATION PAPERWORK.
Unit performance may be verified by calculating the unit heat
of rejection and heat of extraction. Heat of Rejection (HR)
can be calculated and compared to the performance data
pages in this IOM. The formula for HR is as follows:
HR = TD x GPM x 500 (or 485 for antifreeze solutions),
where TD is the temperature difference between the
entering and leaving water, and GPM is the flow rate in U.S.
GPM determined by comparing the unit heat exchanger
pressure drop to Table 13.
48
Heat of Extraction (HE) can also be calculated and compared
Drop, Heating °F
to the performance data pages in this IOM. The formula for
4 - 8
HE is as follows:
HE = TD x GPM x 500 (or 485 for antifreeze solutions),
10 - 17
where TD is the temperature difference between the
entering and leaving water, and GPM is the flow rate in U.S.
GPM determined by comparing the unit heat exchanger
pressure drop to Table 13.
If performance during any mode appears abnormal, refer to
the DXM2.5 section or troubleshooting section of this manual.
NOTE: To obtain maximum performance, the air coil should
be cleaned before start-up. A 10% solution of dishwasher
detergent and water is recommended.
WARNING! When the disconnect switch is closed, high
voltage is present in some areas of the electrical panel.
Exercise caution when working with energized equipment.
G e o t h e r m a l H e a t i n g a n d C o o l i n g
⚠
WARNING!
⚠
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Table of Contents
Troubleshooting
