ClimateMaster Tranquility Digital - Page 23

23
Troubleshooting Guide - Tranquility
®
Digital (DXM2) Packaged Units
Rev.: 01/15/14
Commissioning Worksheet: Check Test and Start
A-G
A-G
Continued from previous page
EWT - Entering Water Temperature EWP - Entering Water Pressure EAT - Entering Air Pressure ∆ - Delta (Differential)
LWT - Leaving Water Temperature LWP - Leaving Water Pressure LAT - Leaving Air Temperature CFM - Cubic Feet/
Minute BTUH - British Thermal Units/Hour
Performance Data
To check performance and output of a unit, compare the measured unit output with factory specifi cations. Find actual HE/HR
(in BTUH) using following formula and information gained from pressure/temperature measurements at each unit. This formula
yields equipment Heat of Absorption (Extraction) or Heat of Rejection. Compare with specifi cation catalog data for that unit.
∆T X GPM X Fluid Factor = HE/HR (BTUH)
Temperature GPM is dP Conversion Fluid Factor - H20/Water500
Differential between specifi cation catalog Antifreeze 485
EWT and LWT
X X = HE/HR
Equipment Performance and Catalog Specifi cation Data should be within 10%
Electrical Setup Data
Power Supply Voltage should be checked to verify proper voltage is being supplied to unit and transformer. Record Voltage
(E) at unit: VAC Transformer leads switched: Yes
No
Transformer has two voltage selections.
All units are factory wired for 230VAC.
For installations with 208VAC units switch transformer lead to the 208V posi-
tion.
Ground Heat Exchanger Data
Loop Type: Check One
Open
Closed (Earth Loop) Horizontal Vertical
Boiler Cooling Tower Standing Column
Hybrid (State Type)
Other (Description)
Loop Installed By:
Loop Purged and Flushed By:
Freeze Protection Added By: Type and Amount:
Loop Protected To °F: Freeze Protection Verifi ed By:
Employer:
Filter and Air Coil Check
Unit used for Heating and Cooling during construction? Yes (Heating Cooling ) No
Two fi nal inspections should be made to ensure proper operation and equipment longevity.
Check air coil for any debris that would restrice airfl ow. Air coil checked by:
Check air fi lter and replace if there is any visible dust or debris. Filter checked by:
Filter replaced: Yes No
Transformer
Common
24 VAC
240 VAC
208 VAC