MyKooltronic Account
U
UserID
CUSTOMER NO.
COMPANY NAME
MyKooltronic Home
Update Your Account
View Orders
View Invoices
Track Shipments
View Shopping Cart
View Quote Requests (RFQ)
Logout
Cart
Your Shopping Cart
Your Cart is Empty
View Cart
RFQ
Your Quote Requests
You have no products to be quoted
View RFQ Cart
(609) 466-3400
Contact Us!
(609) 466-3400
Contact Us!
Toggle navigation
Products & Services
All Products
Air Conditioners
Centrifugal & Packaged Blowers
Fans and Fan Trays
Heat Exchangers
Custom Cooling Design
Enclosure Accessories
Spare/Replacement Parts
Contract Manufacturing Services
Industries
All Industries
Battery Energy Storage Systems
Kiosks, ATMs & Smart Lockers
Medical Technology
Wastewater & Water Treatment
Transportation
Industrial Manufacturing
Hazardous Locations
Food & Beverage
Military & Avionics
Infrastructure
Security Detection & Surveillance
Sizing
Resources
Cooling Solutions Blog
MyKooltronic Customer Portal
Product Documentation
White Papers
An Intro to Closed Loop Cooling
Quality & Compliance Certficates ►
ISO 9001:2015 Certificate
UL Client Test Data Program Certificate
ROHS 3 Compliance Statement
REACH Declaration
Kooltronic Quality Policy
Conflict Minerals Report
Credit Application
Credit Reference Form
About Us
About Kooltronic
News & Announcements
Eco-Friendly Practices
Interactive Timeline
Virtual Tour
Careers with Kooltronic
Contact Us
Send Us a Message
Sales Team
After Sale Kare (ASK)
RFQ Cart
MyKooltronic
KNHE28 Water-to-Air
Panel-Mounted Heat Exchangers
Download
Product
Information
TECHNICAL DATA
Click to
Request
Quote
Model
Volts
Power
Maximum
Inlet
Water
Temp. °F
Performance
Watts/°F
(Air In)
BTU/H (Watts) @
95°F(35°C) Enclosure Air Temp.
50°F(10°C) Inlet Water Temp.
Approx
Weight
lbs.
(kg.)
Spare and
Replacement
Parts
Amps
Watts
1GPM
2GPM
1GPM
2GPM
KNHE28
115
1.2
140
85 (29)
42
50
6,449 (1,890)
7,677 (2,250)
44
Order Parts
K2NHE28
230
0.6
140
85 (29)
42
50
6,449 (1,890)
7,677 (2,250)
44
Order Parts
60 Hz. operation. For 50 Hz. operation, consult Kooltronic.
Click on image for larger view
NEMA
TYPE 4/4X
MAINTAINED
TECHNICAL DATA
Click to
Request
Quote:
Model
Number:
KNHE28
K2NHE28
Volts:
115
230
Power, Amps:
1.2
0.6
Power, Watts:
140
140
Max Inlet Water
Temp. °F(°C):
85 (29)
85 (29)
Perforamce, Watts/°F
(Air in), 1GPM:
42
50
42
50
Perforamce, Watts/°F
(Air in), 2GPM:
6,449 (1,890)
6,449 (1,890)
BTU/H (Watts) @
95°F(35°C) Enclosure Air Temp.
50°F(10°C) Inlet Water Temp, 1GPM:
7,677 (2,250)
7,677 (2,250)
BTU/H (Watts) @
95°F(35°C) Enclosure Air Temp.
50°F(10°C) Inlet Water Temp, 2GPM:
44
44
Approx. Weight lbs.(kg.):
Order Parts
Order Parts
Spare and Replacement Parts
60 Hz. operation. For 50 Hz. operation, consult Kooltronic.
STANDARD FEATURES
Closed-Loop Cooling
The enclosure interior airflow system is isolated from the ambient airflow or waterflow system. No ambient air can invade the cool, dehumidified sensitive component compartment.
Epoxy-Coated Heat Exchanger Coils
Heat Exchanger Coils are epoxy-coated. This coating will withstand 1000 hours of salt spray per the ASTM B 117 test method. Also see Stainless Steel Cabinet or Integrity NEMA 4/4X Air Conditioners. NOTE: Severe operational environments such as waste water treatment and salt spray are likely to cause corrosion failure over a period of time regardless of coating. Warranty: Corrosive conditions may affect the warranty coverage. Consult factory for warranty limitations in corrosive environments. NOTE: For additional corrosion protection options, contact factory.
Gasketed Flanges
NEMA 4/4X Rating Maintained (UL50)
All units are fully gasketed for tight, leakproof installation, in compliance with the NEMA 4 and 4X Enclosure Ratings.
Stainless Steel Shell
For applications in corrosive or other hostile environments such as those requiring Internal Corrosion Resistant Coatings, especially where chemical/moisture combinations are present.
UL/CUL Listed
ACCESSORIES AND OPTIONS
Automatic Water Flow Control
This control consists of a temperature control thermostat and a solenoid valve. When the temperature within the enclosure drops below the thermostat set point due to decreased load or decreasing water temperature, the thermostat closes the solenoid valve. When the temperature increases to the set point (plus a differential) the thermostat opens the solenoid valve and the supply water cools the enclosure. In most models the Automatic Water Flow Control also includes a bypass flow meter which allows a small amount of water (0.25 gpm) to pass through the heat exchanger at all times.
High Water Level Detector
Closes water-supply valve to prevent flooding if excess water accumulates in the drain pan. Signal circuit activates a user-supplied warning device. The low voltage power for the signal circuit is supplied by the user.
Internal Corrosion Protection - KNHE Series
This protection increases reliability in hostile environments. This protection for the cooling system consists of an air cured coating applied to the brazed joints, providing a degree of protection from corrosive environments. This coating will withstand 1000 hours of salt spray per the ASTM B 117 test method. NOTE: Severe operational environments such as wastewater treatment and salt spray are likely to cause corrosion failure over a period of time regardless of coating. This coating provides protection to the external portion of the coil and does not protect from any corrosive elements in the cooling water used internally. Warranty: Corrosive conditions may affect the warranty coverage. Consult factory for warranty limitations in corrosive environments. NOTE: For additional corrosion protection options, contact factory.
Low Airflow Detector
Similar to the Airflow Switch shown in the Blower Accessories Section, the switch is installed in a suitable location in the air conditioner to detect loss of airflow, and sends a signal to a terminal block, through which user-installed wiring and warning devices are activated.
Other voltages and frequencies
Special materials or finishes
Special motors, line cords or connectors
Temperature Alarm
A thermostat is mounted inside the cabinet and attached to a sensor in the warm air return. When the air temperature increases to the set point, a signal is sent to a terminal block. User-installed wiring from the terminal block to local and/or remote warning devices (light, bell, siren, etc.) can be for normally open or closed operation.
AIRFLOW
Click on image for larger view
PERFORMANCE
GENERAL ARRANGEMENT
Click on image for larger view
GENERAL ARRANGEMENT
Click on image for larger view
Many popular units are available as 3D solid models for customer system integration. Contact Kooltronic for details
.
HOW TO ORDER
Specify model number. For 230 VAC operation, add a 2 after the K. Example: K2NHE28.
SIMILAR MODELS
Model
Guideline
Dimensions
(H x W x D)*
Watts/°F
KNHE20
20.00 x 10.14 x 4.31
20
KNHE24
24.00 x 10.50 x 7.56
33
KNHE30
30.00 x 12.50 x 10.95
58
KNHE32
32.00 x 15.50 x 11.04
80
KNHE48
48.00 x 20.26 x 9.32
90
KNHE60
61.87 x 20.26 x 9.37
100
*See model specifics for drawings, dimensions, mounting or cutout plans.
DOCUMENTS
Data Sheet
KNHE28 Product Data Sheet [65Kb]
GA Drawing
KNHE28 General Arrangement Drawing [49Kb]
Installation Instructions
KNHE28 Installation Instructions (2 pages) [109Kb]
Literature
Condensate Evaporator Kits [241Kb]
Increasing the Lifespan and Reliability of Electrical Components [212Kb]
Kooltronic Custom Capabilities Flyer [2194Kb]
Kooltronic Custom Cooling Medical Flyer [211Kb]
Kooltronic Design Guide/Catalog (220 pages) [229400Kb]
Kooltronic Refrigeration System Manufacturing [55Kb]
Kooltronic Standard Warranty [55Kb]
Kooltronic Unit Longevity Press Release [167Kb]
NEMA Enclosure Ratings [91Kb]
Short-Form Catalog (16 pages) [897Kb]
Airflow Switch Data Sheet [159Kb]
Heat Exchanger Quick-Sheet [90Kb]
Laboratory Environmental Testing Services [157Kb]
Powder Paint Application Facilities Flyer [165Kb]
Operator's Manual
KLLC100 Lead-Lag Controller [38Kb]
KLLC480 Lead-Lag Controller [79Kb]
KNHE28 Operator's Manual [147Kb]
