Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 005-052
Printed in U.S.A.
Form 50TFQ-C2SI
Pg 1
11-00
Replaces: New
Book 1
4
Tab
5a 5a
Installation, Start-Up and
Service Instructions
CONTENTS
Page
GENERAL
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SAFETY CONSIDERATIONS
. . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Step 1— Provide Unit Support
. . . . . . . . . . . . . . . . . . . . 2
• ROOF CURB
• SLAB MOUNT
Step 2 — Field Fabricate Ductwork
. . . . . . . . . . . . . . . 2
Step 3 — Install Condensate Drain Line
and External Trap
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Step 4 — Rig and Place Unit
. . . . . . . . . . . . . . . . . . . . . 4
• POSITIONING
Step 5 — Make Electrical Connections
. . . . . . . . . . . 8
• FIELD POWER SUPPLY
• FIELD CONTROL WIRING
• DEFROST BOARD
• HEAT ANTICIPATOR SETTINGS
Page
Step 6 — Adjust Factory-Installed Options
. . . . . . 11
• APOLLO CONTROL
• DISCONNECT SWITCH
• OPTIONAL DURABLADE ECONOMIZER
Step 7 — Adjust Indoor-Fan Speed
. . . . . . . . . . . . . . 14
PRE-START-UP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
START-UP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20,21
SERVICE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-24
TROUBLESHOOTING
. . . . . . . . . . . . . . . . . . . . . . . . . .25,26
START-UP CHECKLIST
. . . . . . . . . . . . . . . . . . . . . . . . CL-1
GENERAL
This literature contains installation, start-up, and service
instructions for 50TFQ rooftop units bearing the Mark of
the European Community (CE). These units are designed in
accordance with European Standard EN60335-2-40 and dis-
play the following symbols:
50TFQ008-012
Single-Package Rooftop Heat Pump Units
50 Hz, CE Units
Check Here
Compressor or Compressor
Section
Compressor Test Pressure
— High
Compressor Test Pressure
— Low
Fuse
Heater
Minimum Clearance to Combus-
tible Materials 25 mm (1 in.) for
First 305 mm (12 in.) of Duct
When Electric Heater is Installed
on Horizontal Discharge Unit.
Minimum Unit
Disconnect
Outdoor (Condenser)
Fan
Phase
Number
Single Point Box
Fire Hazard
Explosion Hazard
No Open Flame
Ground
Check Compressor
Rotation
Moving Parts
Hazard
Filter Section
Fan Section
Electrical Hazard
