Specifications
Table 5 — Limit Switch Application
UNIT SIZE
LIMIT
SWITCH
48HX;
658A
030040 HH18HA440
030060 HH18HA430
036060 HH18HA430
036080 HH18HA435
048080 HH18HA430
048100* HH18HA435
048100† HH18HA119
060080 HH18HA430
060100* HH18HA435
060100† HH18HA119
48SS;
588A
018040 HH18HA440
024040 HH18HA440
024060 HH18HA430
030040 HH18HA440
030060 HH18HA430
030080 HH18HA440
036060 HH18HA430
036080 HH18HA440
036100* HH18HA454
036100† HH18HA119
036120 HH18HA440
042060 HH18HA430
042080 HH18HA435
042100* HH18HA440
042100† HH18HA119
042120 HH18HA435
048080 HH18HA440
048100* HH18HA435
048100† HH18HA119
048120 HH18HA430
048140 HH18HA435
060080 HH18HA430
060100* HH18HA435
060100† HH18HA119
060120 HH18HA430
060140 HH18HA430
48SX;
589A
024040 HH18HA440
024060 HH18HA430
030040 HH18HA440
030060 HH18HA430
030080 HH18HA435
036060 HH18HA430
036080 HH18HA435
036100* HH18HA440
036100† HH18HA119
036120 HH18HA440
042060 HH18HA430
042080 HH18HA440
042100* HH18HA435
042100† HH18HA119
042120 HH18HA430
048080 HH18HA430
048100* HH18HA435
048100† HH18HA119
048120 HH18HA430
048140 HH18HA430
060080 HH18HA430
060100* HH18HA435
060100† HH18HA119
060120 HH18HA430
060140 HH18HA430
*2 Burner Unit.
†3 Burner Unit.
Use a water or u-tube manometer to measure the manifold
pressure. If a spring manometer is used, make sure the ma-
nometer is calibrated. Refer to Table 2 for rated gas inputs,
supply pressure, and manifold pressure.
Proceed as follows to measure and set the manifold pres-
sure (refer to Fig. 1):
1. Turn off gas supply first and then electrical power to unit.
2. Remove pressure tap plug (Fig. 2) on gas manifold and
connect manometer at this point.
3. Turn on electrical power, then gas to unit. With unit op-
erating and all burners fired, adjust regulator adjustment
screw on gas valve for manifold pressure listed in Table
2. Turn screw in (clockwise) to increase pressure or out
(counterclockwise) to decrease pressure.
4. Turn off gas then electrical power to unit. Remove ma-
nometer and replace plug in pressure tap.
5. Turn on gas supply and electrical power to unit.
6. Inspect for leaks.
7. Check temperature rise for the midpoint of the range as
listed on unit nameplate.
Never use a match or other open flame to check for
leaks. Fire or serious injury could result. Use a soap-
and-water solution.
CHECKOUT PROCEDURE — Refer to unit Installation In-
structions for complete sequence of operation.
Burners are not adjustable. Ensure that the flames on each
burner are light blue with yellow tips and ‘‘soft’’ in appear-
ance, and the flames are approximately the same for each
burner.
Before leaving the installation, observe a complete oper-
ating cycle to see that all components are functioning
properly.
Replace burner access panel.
Copyright 1997 Carrier Corporation
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1144
Tab 1a5a5a6a
PC 111 Catalog No. 564-883 Printed in U.S.A. Form 48H,S-2SI Pg 4 11-97 Replaces: 48SS,SX-7SI