Home > Modine > MODINE DFG Mild Temperature Thermostat Installation Guide

MODINE DFG Mild Temperature Thermostat Installation Guide

2

5-583.3

5H0763420000

March, 2024

INSTALLATION & SUBMITTAL DATA

mild temperature thermostat

gas-fired duct furnaces

model series DFG, DFP, DFS, and HFP

IFG, IFP, IFS, and OFP

Application

The mild temperature duct thermostat is shipped loose for field

installation in the inlet air stream so that it senses outdoor air

temperature. The purpose of the mild temperature thermostat

is to automatically disable the gas controls when the inlet

air temperature reaches the desired setpoint to prevent the

furnace from excessively cycling at mild outside air temperature

WARNING

1. Disconnect power supply before making wiring

connections or working on this equipment. Follow all

applicable safety procedures to prevent accidental power

up. Failure to do so can result in injury or death from

electrical shock or moving parts and may cause equipment

damage.

conditions. The mild temperature thermostat is usually field

set at approximately 60°F or 5°-10°F below the duct or room

thermostat.

2. All appliances must be wired strictly in accordance with

wiring diagram furnished with the appliance. Any wiring

different from the wiring diagram could result in a hazard to

persons and property.

Component Specifications

•

Model A19AAF-12

3. All wiring must be done with a wiring material having a

temperature rating of at least 105°C.

Switch Action: Single Pole, Double Throw

Temperature Range: 25 to 225°F

Differential: Fixed at 3-1/2°F

Bulb Size: 3/8 inches x 3 inches long

Capillary Length: 10 feet

Range Adjustor: Screwdriver Slot

Maximum Bulb Temperature: 275°F

Enclosure: NEMA 1 rated

IMPORTANT

1. The use of this manual is specifically intended for a

qualified installation and service agency. All installation

and service of these units must be performed by a

qualified installation and service agency. Modine manuals

may contain excerpts from component supplier literature

adapted for Modine products. Any accompanying

Switch Ratings (SPDT relay contacts):

component supplier literature is for general information.

•

Normally Open and Normally Closed Contact:

6.0 A @ 120V, 3.0 A @ 240V

125VA pilot duty at 24-277VAC

2. These instructions must also be used in conjunction with

the Installation and Service Manual originally shipped

with the appliance, in addition to any other accompanying

component supplier literature.

Installation

Select a location in the inlet air stream where the temperature

element senses the average outdoor air temperature and is

free in air circulation. Hold the temperature elements in the air

stream with either a field supplier duct sensor holder or a bulb

mounting clip. The control must be located in an area suitable

for a NEMA 1 enclosure. The control is normally mounted to a

surface through holes in back of the case.

Do not dent or deform the sensitive bulb of the control. A dent

or deformation will change the calibration and cause the control

to cycle at a temperature lower than the dial setting. When the

bulb mounting clip is used to mount the bulb in the air stream,

be sure the sheet metal screw does not pierce the tubing.

THIS MANUAL IS THE PROPERTY OF THE OWNER.

PLEASE BE SURE TO LEAVE IT WITH THE OWNER WHEN YOU LEAVE THE JOB.

VIEW FULL SCREEN PDF MANUAL

General	Details
Name	MODINE DFG Mild Temperature Thermostat Installation Guide
Make	Modine
Language	English
Filetype	PDF (Download)
File size	0.1 MB

Download PDF

(1 votes, average: 5.00 out of 5)

Comments are closed.

Modine Instructions & User Manuals

MODINE 5-580.4 Programmable Room Thermostat Installation Guide

Get the free PDF manual for the MODINE DFG Mild Temperature Thermostat Installation Guide and access setup steps, usage instructions, and troubleshooting tips. 👉 View online or download now to keep your thermostat running smoothly!

Modine DFG Mild Manual: Questions and Answers

What is the temperature range for a Modine DFG thermostat?

25 to 225°F. The differential is fixed at 3-1/2°F. Installation Guide, p. 1

How do I adjust the setpoint on a Modine DFG Mild thermostat?

Use a screwdriver in the external range adjustment slot. Dial settings indicate the cutout temperature.

Locate the screwdriver slot on the control face.
Turn the slot to adjust the dial setting to your desired cutout temperature.
Refer to Figure 2.2 for slot location and dimensions. Installation Guide, p. 2