Product Brochure

13
6-175.7
Feature
Model
HD HDB PTS BTS
Cabinet and Air Mover
Vertical Deflector Blades - Allows directional discharge air control in the left and right directions. 
Downward Air Deflector Hoods - Available in 30°, 60°, and 90° configurations these deflector hoods enable
the unit to be mounted higher while still providing heat to the building occupants. Refer to page 14 for further
details.

Vibration Isolation Kit - Minimizes unit vibration transmission to the building structure. 
Horizontal Concentric Vent Kit - Enables horizontal concentric venting. Kit consists of one concentric
adapter, one vent terminal, and one bird screen. (See Figure 13.1.)

Vertical Concentric Vent Kit - Enables vertical concentric venting. Kit consists of one concentric adaptor, one
combustion air inlet cap, and one vent terminal cap. (See Figure 13.2.)

Pipe Hanger Adapter Kits - Allows the unit to be suspended by 3/4" pipe from the standard 3/8" holes found
in the top of the unit.

Discharge Transition for Polytube - Allows for the connection of polytube (not included) to the discharge of
the unit.

Blower Enclosure with or without Filter Rack - Totally encases the motor and blower assembly. Optional
filters provide filtering of the air prior to entering the heater.

Belt Guard - Provides protection for building occupants as well as service people from the drive belt and
sheaves.

Controls
Natural Gas to Propane Gas Conversion Kit - Provides all required parts as well as instructions to convert a
natural gas unit to propane gas.

Single or Two-Stage Room Thermostats - See Table 13.2 for details. 
Room Thermostat Guard - Clear plastic for room thermostats. Guard is locking type and comes with two keys. 
Stepdown Transformers - Used to operate propeller units on 208/230/460/575V/3Ph supply voltage. Also
may be required for control circuits for blower units. Refer to Table 12.1 for further selection details.

Control Relays - This single pole single throw relay consists of a 24V coil with a maximum contact rating of
18 amps at 115V.

Gas Pressure Regulator - Fisher Type S-100, 3/4 inch pressure regulator for 1/2 to 50 psi inlet pressure
capacity, 30 MBH to 400 MBH.

ACCESSORIES - ALL MODELS
Table 13.1 - Field Installed Accessories
Table 13.2 - Field Installed Thermostats
Figure 13.1 - Horizontal Concentric Vent Kit Figure 13.2 - Vertical Concentric Vent Kit
FROM UNIT VENT
CONNECTION
TO UNIT COMBUSTION
AIR INTAKE CONNECTION
CONCENTRIC VENT ADAPTER
(WITH FIELD SUPPLIED
MOUNTING BRACKETS)
INLET GUARD
ASSEMBLY
VENT CAP
INLET
TERMINAL
VENT
CAP
FROM UNIT VENT
CONNECTION
TO UNIT COMBUSTION AIR
INTAKE CONNECTION
CONCENTRIC VENT ADAPTER (WITH
FIELD SUPPLIED
MOUNTING BRACKETS)
Single-Stage
Thermostats
Type Description
Room
Thermostat
White Rodgers 1C20-101: 50° - 90°F, 1.0A @ 24VAC
White Rodgers 1C26-101: 50° - 90°F, 1.0A @ 24VAC, Heat/Off & Fan On/Auto Switches
Two-Stage
Thermostats
Room - Digital Honeywell TH5220D1003: 40° - 90°F, 1.0A @ 24VAC, System Heat/Cool/Auto/Off, Fan On/Auto
Duct
Johnson Controls A350 Electronic Temp Control with Sensor and S350 Stage Adder (Blower units only)
Honeywell T678A1015: 0° - 100°F, 20' capillary tube (Blower units only)