General Description
3 General Description
The EC Series Water-to-Air Heat Pumps provide the best
combination of performance and efficiency available. Safety
devices are built into each unit to provide the maximum system
protection possible when properly installed and maintained.
All EC Water-to-Air Heat Pumps conform to UL 1995 standard
and are cer
tified to CAN/CSA C22.2 No 236 by Intertek-ETL.
NOTICE
For well water applications, 50*F minimum entering water
temperature (EWT) with sufficient flow is required to prevent
freezing. Antifreeze solution is required for all closed-loop
applications. Sufficient antifreeze solution is required to
protect against extreme conditions and equipment failure.
Frozen water coils are not covered under warranty.
Table 2 Operating Limits
Operating Limits
Fluid Type Specification Cooling Heating
Air
Minimum ambient air temperature 50°F 40°F
Maximum ambient air temperature 100°F 85°F
Rated ambient air temperature 80°F 68°F
Minimum air coil entering air db/wb 65/57°F 45°F (db)
Maximum air coil entering air db/wb 95/85°F 80°F (db)
Rated air coil entering air db/wb 80/67°F 68/59°F
Liquid
Antifreeze Protection Required (LWT/EWT) — <40/<50°F
Minimum water coil entering fluid temperature 45°F
EXT 20°F
STD 50°F
Maximum water coil entering fluid temperature 110°F 80°F
Rated water coil entering fluid
temperature
Water Loop 86°F 68°F
Ground Loop 77°F 32°F
Ground Water 59°F 50°F
Maximum operating water pressure
Standard Unit 400 psi/2,785 kPa
With factory installed water valve
option
300 psi/2,068 kPa
Minimum operating water flow rate 1.5 GPM per ton
Note: Maximum and minimum operating limits may not be combined. Refer to Engineer Submittal Sheet on the product information
page. (See the QR code on the back page of the IOM).
Acronyms:
EXT: Extended Range application option
STD: Standard application option
LWT: Leaving Water Temperature
EWT: Entering Water Temperature
8 |
EC Series Heat Pumps — 8733841499 (2024/05)
To Next Page
Loading...
