Gardner Denver RNC25 User Manual

Gardner Denver RNC25

36 pages

To Next Page

To Next Page

Page #1 background image

Loading...

Page #1 background image

REFRIGERATED

TYPE

COMPRESSED

AIR DRYERS

INSTRUCTION MANUAL

RNC Series

Models: RNC100, RNC125, RNC150, RNC200,

RNC250, RNC300, RNC400, RNC500,

RNC600, RNC750

5002737 Rev. E 07/14

18-2-670 RNC100-750 New Platform 1st Edition

33F......................39F

1C.......................4C

CONTENTS

GENERAL SAFETY INFORMATION .................................. 2

RECEIVING, MOVING, AND UNPACKING ........................ 2

1.0 INSTALLATION ......................................................... 3

2.0 OPERATION ............................................................ 5

3.0 MAINTENANCE ...................................................... 10

SIZING ............................................................................ 12

ENGINEERING DATA:

Models 100-250 ........................................................ 13

Models 300-750 ........................................................ 14

DIMENSIONS / WEIGHTS ................................................ 15

WIRING DIAGRAM: I-Controller Level 1

Model 100 (120/230 VAC) ......................................... 16

WIRING DIAGRAM: I-Controller Level 2

Model 100 thru 150 (115 or 208-230V/60 Hz,

100 or 240V/50 Hz) .................................................. 17

Models 200 thru 600 (230-400-460V/3/50-60 Hz) .. 18, 19

Model 750 (230-400-460V/3/50-60 Hz) ................... 20, 21

WIRING DIAGRAM: I-Controller Level 4

Models 200-600, (460 VAC) ...................................... 22, 23

Model 750, (460 VAC) ............................................... 24, 25

WIRING DIAGRAM

Models 200-750, 575-460/3/60 Transformer Pack . 26

TROUBLESHOOTING GUIDE:

I-Controller Level 1 & I-Controller Level 2 ................ 27

I-Controller Level 4 (Models 200-750) ...................... 28

REPLACEMENT PARTS:

Cabinets (all models) ................................................ 29

Models RNC100 through RNC150 ........................... 30, 31

Models RNC200 through RNC750

Air-Cooled Units .................................................... 32, 33

Water-Cooled Units............................................... 34, 35

WARRANTY ................................................................... 36

For Sales and Service: (800) 883-2477

Or visit Sales and Service at www.gardnerdenverproducts.com

Questions and Answers:

C
Carrie GomezAug 19, 2025
Why is the pressure drop so high across my Gardner Denver RNC25?
- E
  Elizabeth BoyerAug 19, 2025
  A high-pressure drop across your Gardner Denver Dehumidifier can stem from a few reasons. First, check the flow rate to ensure it's not excessive. Freezing of moisture in the evaporator due to a refrigeration system fault can also cause this issue. Lastly, a clogged separator or optional Oil Removal filter element could be the culprit; if so, replace the filter element(s).
J
Jennifer HaasAug 22, 2025
How to troubleshoot a Gardner Denver RNC25 refrigeration system that is not functioning properly?
- J
  Jason BrownAug 22, 2025
  If the refrigeration system of your Gardner Denver Dehumidifier isn't working right, begin by checking the power to the unit. Ensure the ON/OFF switch is in the “ON” position and that the line disconnect switch is closed. Inspect fuses and breakers for continuity. Have an electrician examine the wiring for any faults or loose terminals. Also, check if ambient conditions are within the specified minimum and maximum temperature ranges. For air-cooled models, ensure the condenser fins are clean and that there is free airflow across the condenser. If the problem continues, further assistance is required.
B
broyAug 28, 2025
What causes a high pressure drop across my Gardner Denver Dehumidifier?
- D
  David JohnsonAug 28, 2025
  A high pressure drop across your Gardner Denver Dehumidifier could stem from a few reasons. First, check the flow rate to ensure there isn't excessive air flow. Another potential cause is the freezing of moisture in the evaporator due to a refrigeration system fault. Lastly, the separator or optional oil removal filter element might be clogged, necessitating replacement of the filter element(s).
L
Laura GomezAug 31, 2025
What to do if the refrigeration system is not functioning properly in my Gardner Denver Dehumidifier?
- M
  matthew38Aug 31, 2025
  If the refrigeration system of your Gardner Denver Dehumidifier isn't working correctly, begin by checking the power supply to the unit. If the power light is off, ensure the unit is receiving power. If the compressor light is off, turn the switch to the “ON” position. If the refrigeration compressor cycles on and off, close the disconnect switch. Check for continuity and have an electrician inspect the electrical connections. Also, verify the minimum and maximum temperature ranges, and clean the condenser, ensuring free airflow. If the problem continues, further assistance is required.
L
lisawalkerSep 3, 2025
Why is the dew point indicator in the red area on my Gardner Denver RNC25 Dehumidifier?
- J
  Joyce PierceSep 3, 2025
  If the dew point indicator on your Gardner Denver Dehumidifier is in the red area, it could be due to the dryer being overloaded, resulting in a high air outlet temperature. It may also be because the refrigeration system is not functioning properly, also leading to a high air outlet temperature. If the dryer is running with no load, the light will go out when air flow is established.
J
johnsonamySep 12, 2025
Why is there a high pressure drop across my Gardner Denver RNC25 Dehumidifier?
- C
  Carmen BennettSep 12, 2025
  A high pressure drop across your Gardner Denver Dehumidifier can be due to several reasons. First, check the flow rate to ensure there isn't excessive airflow. If moisture is freezing in the evaporator due to a refrigeration system fault, see section D (not provided). Lastly, the separator or optional Oil Removal filter element might be clogged; replace the filter element(s) in this case.

Gardner Denver RNC25 Specifications

General

Brand	Gardner Denver
Model	RNC25
Category	Dehumidifier
Language	English

Related product manuals

Gardner Denver RNC200

Gardner Denver RNC250

Preview: Gardner Denver RNC125

Gardner Denver RNC125

Gardner Denver RNC150

Gardner Denver RNC300

Gardner Denver RNC600

Gardner Denver RNC500

Preview: Gardner Denver RNC Series

Gardner Denver RNC Series

Preview: Gardner Denver RSD Series

Gardner Denver RSD Series

Gardner Denver RCD Series

Gardner Denver DGH Series

Preview: Gardner Denver GSRN Series

Gardner Denver GSRN Series