Honeywell T4039A- Manual
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Table of Contents:
- Page 2 – Specifications; Ordering Information
- Page 5 – Installation; CAUTION
- Page 8 – Operation; Checkout
1
60-2241—8
T4039 Thermostats Control Line Voltage Valves of
a fan coil unit in cooling, manual changeover heat-
ing-cooling, or automatic changeover heating-cool-
ing systems. One or two valves may be controlled
directly by the thermostat. The fan switch (where
applicable) controls air circulation.
T4039A,B,D-M,S,V
Line Voltage Cooling and
Heating-Cooling Thermostats
J. H. • Rev. 10-92 • ©Honeywell Inc. 1992 • Form Number 60-2241—8
■
Color-coded leadwires.
■
All models can be mounted on standard vertical
outlet boxes. Models with manual switching can be
mounted on 4 in. square junction boxes or 2-
ganged outlet boxes.
■
Adjustable range stops limit temperature adjust-
ment or lock at selected setpoint.
■
Models available with separate power source for
fan and thermostat.
■
1-, 2-, or 3-speed manual fan control available.
■
Positive deadspot separates heating-cooling circuits
in automatic models. Remote changeover switch is
required to separate circuits in manual changeover
heating-cooling models.
■
Scale range is approximately 55
°
F to 95
°
F [13
°
to
35
°
C] in 10
°
F [6
°
C] increments from 75
°
F [24
°
C] midpoint. Scale is marked COOL-WARM.
■
Cooling circuit breaks in FAN-OFF position to re-
duce condensation problems in the fan coil unit.
CONTENTS
Specifications ................................................. 2
Ordering Information ..................................... 2
Installation ..................................................... 5
Operation ....................................................... 8
Checkout ......................................................... 8
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Summary
2 T4039A,B,D-M,S,V SPECIFICATIONS • ORDERING INFORMATION Specifications MODELS: Manual System Switching a Model Cooling Only Off-On b T4039A Cooling Only Hi-Med-Lo T4039B Off-On b Heating-Cooling c — T4039D Off-On d Heating Cooling c Off-Hi-Lo b T4039E — Heating-Cooling c Hi-Med-Lo T4039F Off-On b A...
5 60-2241—8 T4039A,B,D-M,S,V INSTALLATION Installation WHEN INSTALLING THIS PRODUCT… 1. Read these instructions carefully. Failure to follow them could damage the product or cause a hazardouscondition. 2. Check the ratings given in the instructions and on the product to make sure the product is suit...
8 Operation In heating applications, as the temperature drops, the thermostat heating contacts make to open a valve thatallows hot water to flow through the coil. On select models,the speed at which the heat is circulated is controlledmanually by the fan switch. In cooling applications, as the tempe...
