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509 01 3808 00
09/2016
Specifications are subject to change without notice.
INSTALLATION INSTRUCTIONS
R--410A Single Package Gas Heating /
Electric Cooling
RGH072 -- 120
NOTE
: Read the entire instruction manual before starting
the installation
TABLE OF CONTENTS
SAFETY CONSIDERATIONS
2
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Rated Indoor Airflow (cfm)
3
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INSTALLATION
8
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Jobsite Survey
8
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Step 1 -- Plan for Unit Location
8
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Roof Mount
9
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Step 2 -- Plan for Sequence of Unit Installation
9
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Curb--Mounted Installation
9
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Pad--Mounted Installation
9
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Frame--Mounted Installation
9
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Step 3 -- Inspect Unit
9
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Step 4 -- Provide Unit Support
9
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Roof Curb Mount
9
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Slab Mount (Horizontal Units Only)
11
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Alternate Unit Support
(In Lieu of Curb or Slab Mount)
11
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Step 5 -- Field Fabricate Ductwork
11
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Step 6 -- Rig and Place Unit
11
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Positioning on Curb
12
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Step 7 -- Convert to Horizontal and Connect
Ductwork
12
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Step 8 -- Install Outside Air Hood
13
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Economizer and Two Position Damper Hood
Package Removal and Setup — Factory Option
13
. .
Economizer Hood and Two--Position Hood
13
. . . . .
Step 9 -- Install Flue Hood
14
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Step 10 -- Install Gas Piping
14
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Optional Thru--Base Connections
(Gas Connections)
15
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Step 11 -- Install External Condensate Trap and Line
17
. .
Step 12 -- Make Electrical Connections
17
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Field Power Supply
17
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Units with Factory--Installed
Non--Fused Disconnect
18
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Units without Factory--Installed
Non--Fused Disconnect
19
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All Units
19
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Convenience Outlets
19
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Optional Thru--Base Connections
(Electrical Connections)
20
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Units without Thru--Base Connections
21
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Field Control Wiring
21
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Thermostat
21
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Unit without Thru--Base Connection Kit
21
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Heat Anticipator Settings
22
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EconoMi$er X (Factory--Installed Option)
22
. . . . . . .
2--Speed Indoor Fan Motor System with VFD
(Factory--Installed Option)
22
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Hot Gas Re--Heat Control Connections
22
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Hot Gas Re--Heat -- Space RH Controller
22
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Smoke Detectors
24
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Step 13 -- Adjust Factory--Installed Options
25
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Step 14 -- Install Accessories
25
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START--UP CHECKLIST
31
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