Chromalox PG421-1 user manual

Summary of the content on the page No. 2

INSTALLATION Mounting Frame ELECTRIC SHOCK HAZARD. Disconnect all power before installing or servicing heater. Failure to do so could result in personal injury or property dam- Insulation age. Heater must be installed or serviced by a qualified person in accordance with the National Reflector Electrical Code, NFPA 70. Spacer Sheet Figure 4 1. Clamps — Heaters are mounted by means of the mounting 3 clamp and /8” bolt assembly which is used as shown in Fig. 2. 5. Insulation — Where unusually hi

Summary of the content on the page No. 3

8. SERIES CONNECTION of Radiant Heaters of equal volt 9. DELTA CONNECTIONS — When heaters occur in multiples and watt rating is permitted in all line voltages up to 600 volts. of three, they may be connected to, and balanced across, three- In making such series connections it is necessary to observe the phase lines. The most commonly used connection is the delta “right” (series-parallel) connection rather than the “wrong” connection illustrated in Figure 7. (parallel-series) connection both show

Summary of the content on the page No. 4

MAINTENANCE To Install Element — Observe instructions for removing element and proceed in reverse order. Be sure to replace secondary insulating bushings. ELECTRIC SHOCK HAZARD. Disconnect all power before installing or servicing heater. Failure to do Care of Reflectors — so could result in personal injury or property dam- Reflectors should be cleaned periodically. A mild soap and age. Heater must be installed or serviced by a water solution or fine cleaning powder is best although more dras-

Summary of the content on the page No. 5

RENEWAL PARTS IDENTIFICATION 4 4 2 3 Aluminum 2 3 Aluminum Model Volts Watts Element* Reflector Housing Model Volts Watts Element* Reflector Housing U-RAD-33LT 120 UTU-3LT (2) U-RAD-66VLT 208 UTU-6VLT (2) U-RAD-33VLT 208 UTU-3VLT (2) U-RAD-66LT 240 UTU-6LT (2) 2200 234-013411-033 (2) 152-016963-003 6000 234-013411-036 (2) 152-016963-015 U-RAD-33LT 240 UTU-3LT (2) U-RAD-66VLT 275 UTU-6VLT (2) U-RAD-33VLT 275 UTU-3VLT (2) U-RAD-66LT 480 UTU-6LT (2) UTU-4VLT 234-013411-034 UTU-7VLT 234-013411-037 U

Summary of the content on the page No. 6

Limited Warranty: Please refer to the Chromalox limited warranty applicable to this product at http://www.chromalox.com/customer-service/policies/termsofsale.aspx. 2150 N. RULON WHITE BLVD., OGDEN, UT 84404 Phone: 1-800-368-2493 www.chromalox.com

Summary of the content on the page No. 1

Installation,Operation
4 U-RAD
and
(Supersedes PG421)
PG421-1
RENEWALPARTSIDENTIFICATION 161-058006-001
APRIL, 2005
Type U-RAD-LT Electric Radiant Heaters
Specifications Table —
!
The Safety Alert Symbol is used to indicate a risk of per-
AB
sonal injury.
Overall Heated
Please familiarize yourself with these instructions before Model Volts Watts Length (In.) Length (In.)
attempting to install or operate this Radiant Heater.
Single U-Shaped Element
U-RAD-2LT 120 or 240
5 7
0800 13 /16 8 /16