FEATURES
SPECIFICATION DATA
The CTR21, CTR22, CTR23, and CTR24 family of wall
modules include:
• Models with setpoint adjustment.
• Models with occupied/unoccupied override (bypass)
with LED.
• Models with 3-position (auto/0/1) or 5-position
(auto/0/1/2/3 speed) fan switch.
• LONWORKS® bus jack on all models except the CTR21
and CTR21-A models.
• Operating range 45°F to 99°F (7°C to 37°C).
• Models (CTR22 and CTR23) with user-selectable
temperature setpoint dials in Fahrenheit, Celsius, and
Relative (- to +).
SPECIFICATIONS
GENERAL
The CTR21, CTR22, CTR23, and CTR24 are a family of
direct wired wall modules for use with:
— Honeywell Excel 800, 600, 100, and 80 (all fully
programmable) controllers
— Excel 10 W7750, W7751a, W7752, and W7753
controllers
— W7761 Controller
— Spyder Unitary Controllers: PUL, PVL
— ComfortPoint LON Controllers: CP-UL, CP-VL
All models have a space temperature sensor. Some models
have a temperature dial, setpoint adjustment, LONWORKS®
bus jack, override (bypass) with LED, and fan switch. The
figure above is the CTR23 model.
Models: See Table 1 on page 2.
Construction: Two-piece construction, cover and internally
wired subbase. Field wiring 16 to 22 AWG (1.31-0.33 sq.
mm) connects to a terminal block in the subbase.
Mounting Options: All modules can be mounted on a
standard two by four inch junction box or on a 60 mm
diameter junction box.
Dimensions (H/W/D): See Fig. 2 on page 3.
Environmental Ratings:
• Operating Temperature: 45°F to 99°F (7°C to 37°C).
• Shipping Temperature: -40°F to 150°F (-40°C to
65.5°C).
• Relative Humidity: 5% to 95% non condensing
Humidity Output Accuracy: ±5% from 20–80% RH
Temperature Setpoint Ranges (CTR22 and CTR23 only):
The setpoint range is determined by the temperature knob
installed:
• 55°F to 85°F
• 13°C to 29°C
a The CTR21, CTR22, CTR23, and CTR24 wall modules
are not compatible with W7751A,C,E,G Controllers.
50040122

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