Unitary products group HA 300 Installation Instructions Manual

ACCESSORY KIT INSTALLATION INSTRUCTIONS
HA 300, HB 360 / 480 / 600, HF-25, HL-30 / -40 / -50 Models
GENERAL
These split-system condensing units are designed to
operate at ambient temperatures down to 40°F. This
accessory will insure safe operation at ambient temper-
atures down to 0°F. The VLT6000 control monitors the
refrigerant system and will vary the condenser fan
speed based on the discharge pressure. One controller
is required for each fan to be controlled. Therefore, two
accessory kits are required for each unit. This instruc-
tion provides all the necessary information to properly
field-install a low ambient accessory on the condensing
units listed in Table 1. Components that are supplied in
the respective accessory are listed in Table 2, and pic-
tured in Figure 1.
TABLE 1: APPLICATION DATA
ACCESSORY MODEL #
2LA04702658
2LA04702858
2LA04702958
2LA04703058
TABLE 2: ACCESSORY COMPONENTS
ITEM QTY. PART NO.
*
1* 473-24615-00X*
1 ea
2 1 ea 025-38680-000
3 1 ea 025-38681-000
4 1 ea 025-37466-000
5 1 ea 023-20566-000
6 2 ea 021-15529-000
7 1 ea 025-10209-000
8 2 ea 025-14284-000
9 6 ea 025-09607-000
10 1 ea 025-37455-000
2 ea 025-37425-575
†
11
2 ea 025-37474-575
*. "X" denotes Model number needed for application.
†. Crankcase Heaters supplied are dependent on accessory
ordered.
Unitary Products Group
Low Ambient Accessory
For Air Cooled Split-System Air Conditioners
VOLTAGE UNIT
575 HA 300, HF -25
575 HB 360, HL -30
575 HB 480, HL -40
575 HB 600, HL -50
DESCRIPTION
VLT6000 Condenser Fan Speed
Control and Enclosure
Pressure Transducer
Wire Harness Assembly
Power wire Harness
Tee Connector
Screw HEX ¼-14 X.75
7/8 Bushing
1 3/8 Bushing
Wire Tie
0º Degree Switch
30/40 Ton Crankcase Heater
25/50 Ton Crankcase Heater
FIGURE 1 - ACCESSORY COMPONENTS
The 2LA047 series low ambient accessories are
intended for use with the 25-50 Ton Split System con-
densing units only. UPG cannot guarantee proper
operation for any application of this VLT6000 control-
ler for other equipment or applications. Contact your
local branch or distributor for any application related
questions.
Improper installation, adjustment, service or mainte-
nance can cause injury or property damage. There-
fore, only a qualified installer or qualified service
personnel should perform this conversion.
If the unit is connected to power sources, make sure
that all electrical power to the unit has been discon-
nected.
035-20209-000-A-0904