esvEH_singledual_2023_V2.pdf
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About this file
This document is a product specification and selection guide for Titus electric heating coils designed for single and dual duct VAV (Variable Air Volume) terminal units, specifically models PESV, AESV, and DESV.
The electric coils are available in two heat configurations: staged heat and Lynergy heat. For staged heat applications, the document provides a comprehensive selection table with maximum recommended kilowatt (kW) capacities across inlet sizes ranging from 4 to 24x16 inches, with heating cfm ranges from 55 to 8000 cfm. Available voltage options include 120V, 208V, 240V, and 277V single-phase configurations, as well as 208V and 480V three-phase configurations. The staged heat table indicates the number of available heating steps (1-3 steps) for each inlet size, with corresponding kW ranges that vary by voltage type and phase configuration. The Lynergy heat configuration provides simpler capacity specifications without staged steps, offering broader kW ranges across the same inlet sizes and voltage options. The document establishes critical selection criteria requiring that coil discharge temperatures not exceed 100°F for proper operation, with recommended maximum discharge temperatures of 15°F above desired room temperatures. A key operational constraint specifies that minimum airflow limits must satisfy the formula kW ≤ cfm × 0.0142 to limit temperature rise to 45°F and ensure the airflow sensing switch functions correctly. The document also notes that the 480V three-phase configuration is standard 4-wire wye, with 3-wire configuration available upon request.
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| w w w .titus-hvac.com single / dual duct terminals
M23
M
ELECTRIC COILS
SELECTION AND CAPACITIES
PESV, AESV, DESV / APPLICATION DATA (STAGED HEAT)
Useful formulas: cfm x ΔT cfm ΔT kW x 3160kW x 3160 kW = or ΔT = or cfm =
Titus electric heating coils are specifically designed for use with VAV terminal units. They include an extended plenum section and diffuser plate to minimize stratification. The heating elements are designed to minimize hot spots and nuisance tripping of the thermal cutouts.
Must be within recommended ranges to ensure proper operation and long service life. For optimum diffuser performance and maximum thermal comfort, coil discharge temperatures should not be more than 15°F above desired room temperatures. For proper coil operation it is recommended that coil discharge temperatures do not to exceed 100°F.
To make a coil selection:
1. Check the desired kW is available in desired unit size and number of stages. (Required to prevent excessive watt density and current draw, while taking into account unit size limitations.)
2. Check the desired minimum airflow limit is within recommended operating range. (Ensures velocity pressure will be sufficient to close airflow sensing switch.)
3. Multiply desired minimum airflow limit by a factor of 0.0142 and check the result is equal to or greater than desired kW. (Limits temperature rise across the coil to 45°F.)
Recommended Coil Selection Data The table at the right describes the maximum recommended kW capacities and number of stages available for Titus single duct terminals.
These requirements established to prevent excessive temperature rise caused by low airflow and/or oversized coils. Minimum airflow limits kW ≤ cfm x 0.0142
Where ΔT = air temperature rise.
Note: The Titus 480V, 3-phase electric heat configuration is 4-wire wye. 3-wire configuration is available.
ELECTRIC COILS
Inlet Size Heating cfm
Range
Number of Steps
Available
120V 1 Phase kW Range
208V 1 Phase kW Range
240V 1 Phase kW Range
277V 1 Phase kW Range
208V 3 Phase kW Range
480V 3 Phase kW Range
Min Max Min Max Min Max Min Max Min Max Min Max
4 55-225 1 0.5
5.0 0.5
3.0 1.0
3.0 1.0
3.0 1.5 3.0 2.5 3.02 1.0 1.0 1.5 1.5 3 1.5 1.5 2.0 2.5
5 85-350 1 0.5
5.0 0.5
5.0 1.0
5.0 1.0
5.0 1.5 5.0 2.5 5.02 1.0 1.0 1.5 1.5 3 1.5 1.5 2.0 2.5
6 105-500 1 0.5
5.0 0.5
7.5 1.0
7.5 1.0
7.5 1.5 7.5 2.5 7.52 1.0 1.0 1.5 1.5 3 1.5 1.5 2.0 2.5
7 135-650 1 0.5
5.0 0.5
9.5 1.0
9.5 1.0
9.5 1.5 9.5 2.5 9.52 1.0 1.0 1.5 1.5 3 1.5 1.5 2.0 2.5
8 190-900 1 0.5
5.0 0.5
9.5 1.0
11.0 1.0
13.0 1.5 13.0 2.5 13.02 1.0 1.0 1.5 1.5 3 1.5 1.5 2.0 2.5
9 225-1050 1 0.5
5.0 0.5
9.5 1.0
11.0 1.0
13.0 1.5 16.0 2.5 16.02 1.0 1.0 1.5 1.5 3 1.5 1.5 2.0 2.5
10 300-1400 1 0.5
5.0 0.5
9.5 1.0
11.0 1.0
13.0 1.5 16.0 2.5 21.02 1.0 1.0 1.5 1.5 3 1.5 1.5 2.0 2.5
12 425-2000 1 0.5
5.0 0.5
9.5 1.0
11.0 1.0
13.0 1.5 16.0 2.5 30.02 1.0 1.0 1.5 1.5 3 1.5 1.5 2.0 2.5
14 575-3000 1 0.5
5.0 1.0
9.5 1.0
11.0 1.5
13.0 1.5
16.0 3.0 36.02 1.0 2.0 2.0 2.0 2.0 3 1.5 3.0 3.0 3.0 3.0
16 750-4000 1 0.5
5.0 1.0
9.5 1.0
11.0 1.5
13.0 1.5
16.0 3.0 36.02 1.0 2.0 2.0 2.0 2.0 3 1.5 3.0 3.0 3.0 3.0
24x16 1800-8000 1 1.0
5.0 1.0
9.5 1.0
11.0 1.5
13.0 1.5
16.0 4.0 36.02 2.0 2.0 2.0 3.0 2.0 3 3.0 3.0 3.0 4.5 3.0 www.
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M24
M
ELECTRIC COILS
PESV, AESV, DESV / APPLICATION DATA (LYNERGY HEAT)
EL
EC
TR
IC
C
OI
LS
Inlet Size
Heating cfm Range
120V 1 Phase kW Range
208V 1 Phase kW Range
240V 1 Phase kW Range
277V 1 Phase kW Range
208V 3 Phase kW Range
480V 3 Phase kW Range
Min Max Min Max Min Max Min Max Min Max Min Max
4 55-225 0.5 2.5 0.5 3.0 1.0 3.0 1.0 3.0 1.5 3.0 2.5 3.0
5 85-350 0.5 4.5 0.5 5.0 1.0 5.0 1.0 5.0 1.5 5.0 2.5 5.0
6 105-500 0.5 5.0 0.5 7.5 1.0 7.5 1.0 7.5 1.5 7.5 2.5 7.5
7 135-650 0.5 5.0 0.5 9.5 1.0 9.5 1.0 9.5 1.5 9.5 2.5 9.5
8 190-900 0.5 5.0 0.5 9.5 1.0 11.0 1.0 13.0 1.5 10.5 2.5 13.0
9 225-1050 0.5 5.0 0.5 9.5 1.0 11.0 1.0 13.0 1.5 10.5 2.5 16.0
10 300-1400 0.5 5.0 0.5 9.5 1.0 11.0 1.0 13.0 1.5 10.5 2.5 21.0
12 425-2000 0.5 5.0 0.5 9.5 1.0 11.0 1.0 13.0 1.5 10.5 2.5 25.0
14 575-3000 0.5 5.0 1.0 9.5 1.0 11.0 1.5 13.0 1.5 10.5 3.0 25.0
16 750-4000 0.5 5.0 1.0 9.5 1.0 11.0 1.5 13.0 1.5 10.5 3.0 25.0
24x16 1800-8000 2.0 5.0 1.0 9.5 1.0 11.0 1.5 13.0 1.5 10.5 4.0 25.0 www.
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