Friedrich VHA24K25, VHA24K34, VHA24K50, VHA24K75, VEA24K25 Installation and Operation Manual
...
INSTALLATION &
OPERATION GUIDE
920-159-04 (05-08)
VERT-I-PAK®A-SERIES
SINGLE PACKAGE
VERTICAL AIR
CONDITIONING SYSTEM
24,000 BTU/h
920-159-04
Table of Contents
Your Safety and the safety of others ............................................................................................................................... 3
Installation Recommendations .................................................................................................................................... 4
General Specifications
Model Number Identification Guide ................................................................................................................................. 5
VERT-I-PAK Chassis Specifications................................................................................................................................ 5
Electrical Data .............................................................................................................................................................. 5-6
Installation
Utility Closet Dimensions................................................................................................................................................. 7
Wall Plenum & Architectural Louver Installation .............................................................................................................. 8
Drain Pan Installation ...................................................................................................................................................... 9
Condensate Disposal System ......................................................................................................................................... 9
Indoor Return Air Grille Installation.................................................................................................................................. 9
Indoor Airflow Data ........................................................................................................................................................ 10
Chassis Installation ....................................................................................................................................................... 10
Remote Thermostat Operation
Remote Thermostat....................................................................................................................................................... 11
Thermostat Connections ............................................................................................................................................... 11
Desk Control Terminals ................................................................................................................................................. 11
Auxiliary Fan Control ..................................................................................................................................................... 11
Electrical and Thermostat Wiring Diagrams .................................................................................................................. 12
Chassis Final Connection
Final Installation checklist.............................................................................................................................................. 13
Chassis Operation
Fresh Air Door ............................................................................................................................................................... 13
Low Ambient Protection................................................................................................................................................. 13
Room Freeze Protection ............................................................................................................................................... 13
Emergency Heat Override............................................................................................................................................. 13
Emergency Heat Operation........................................................................................................................................... 13
Service
Servicing/Chassis Quick Changeouts ........................................................................................................................... 14
Routine Maintenance .................................................................................................................................................... 14
Error Codes ................................................................................................................................................................... 15
Factory Dipswitch Configuration.................................................................................................................................... 15
Accessories ................................................................................................................................................................... 16
Warranty....................................................................................................................................................................... 17
2
920-59-04
Your safety and the safety of others are very important.
We have provided many important safety messages in this manual and on your appliance. Always read and obey all
safety messages.
This is a safety Alert symbol.
This symbol alerts you to potential hazards that can kill or hurt you and others.
All safety messages will follow the safety alert symbol with the word “WARNING”
or “CAUTION”. These words mean:
WARNING
CAUTION
All safety messages will tell you what the potential hazard is, tell you how to reduce the chance of injury, and tell you
what will happen if the instructions are not followed.
NOTICE
You can be killed or seriously injured if you do not
follow instructions.
You can receive minor or moderate injury if you do not
follow instructions.
A message to alert you of potential property damage will have the word “NOTICE”.
Potential property damage can occur if instructions are not followed.
Read this manual thoroughly prior to equipment installation or operation. It is the installer’s responsibility to properly apply and
install the equipment. Installation must be in conformance with the NFPA 70-2002 National Electric Code current edition, Universal
Mechanical Code current edition and applicable local or national codes.
Proper installation is not difficult, but it is essential.
3
920-159-04
Vert-I-Pak Installation Recommendations
For proper unit performance and maximum operating life please refer to the minimum installation clearances
below.
Figure 1
VERT-I-PAK®units must be installed on an outside wall. Confined spaces and/or covered areas should be
avoided. Units should be installed no closer than 12" apart when two units are side by side. If three or more
units are to operate next to one another allow a minimum of 60" between units or pairs of units. Also, a vertical
clearance of 60" should be maintained between units. Units installed on the bottom floor should be mounted at
least 6" off of the ground.
6"
SMALL RECESS OK
60"
60"
60"
6"
60" 60"
60"
60"
6"
B
A
LARGER RECESS OK. IF A> 5xB
60"
60"
60"60"
12"
Figure 2
BUILDING
24"60"
KAPVKAPVKAPV
24"
POLE
12"
SHRUB
-
OUTDOOR
CONDENSING
UNIT
MAJOR OBSTRUCTION
®
72"
FENCE
4
920-159-04
Vert-I-Pak
SERIES
DESIGN SERIES
NOMINAL CAPACITY
V O LTA G E
Vert-I-Pak
®
®
HTR43K90AEVREBMUNLEDOM
ENGINEERING CODE
OPTIONS
ELECTRIC HEATER SIZE
25 = 2.5 KW
34 = 3.4 KW
50 = 5.0 KW*
75 = 7.5 KW**
** 24000 BTU only.
R-22
23.125
23.125
47.25
Electrical Data
MODEL
VHA/VEA24K25 VHA/VEA24K34 VHA/VEA24K50 VHA/VEA24K75
68 68 68 68
5
920-159-04
Electrical Requirements
Wire Size ONLY
ONLY
Unit MUST
All 208/230v chassis must be hard wired with properly sized breaker. See namplate for specific chassis electrical
requirements. See figure 9 (Page 12) for unit wiring and wall thermostat wiring. See Electrical Rating Table below for wire size.
Use HACR type breakers to avoid nuisance trips. All field wiring must be done in accordance with NEC and local codes.
Electrical Rating Tables
Sample Nameplate
41A51
21A02
01A03
SAMPLE
WARNING
Electrical Shock Hazard
Turn OFF electric power before service or installation.
Unit must be properly grounded.
Unit must have correct fuse or circuit breaker protection.
Unit’s supply circuit must have the correct wire conductor size.
All electrical connections and wiring must be installed by a qualified
electrician and conform to the National Electrical Code and all local
codes which have jurisdiction.
6
Failure to do so can result in property damage, personal injury and/or death.
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