Roberts Gorden VANTAGE NP CTHN-200 - Manual (Page 22)

CTHN-S ERIES I NSTALLATION , O PERATION AND S ERVICE M ANUAL
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8.2 Unitary Heater Requirements
CTHN unitary heaters are typically shipped as a
burner package, fan assembly and a tube and
accessory package. The tube and accessory
packages contain enough tube, reflector and hanging
parts for one unitary CTHN heater. Elbows, u-tubes,
controls, and any other parts must be purchased
separately.
See Page 17, Figure 15 for a general overview of a
CTHN unitary heater. CTHN unitary heaters are
controlled by thermostat.
Table 5 summarizes the design requirements for a
CTHN unitary heater.
Table 5: Unitary Heater Design Requirements
Burner Model: CTHN-40 CTHN-60 CTHN-80 CTHN-100 CTHN-125 CTHN-150 CTHN-175 CTHN-200
Maximum Number of Burners Allowed
per Fan Assembly (P/N 05220000)
1 1 1 1 1 1 - -
Maximum Number of Burners Allowed
per Fan Assembly (P/N 05221000)
- - - - - - 1 1
Minimum Radiant Tube Length 10' (3 m) 20' (6 m) 20' (6 m) 30' (9 m) 40' (12 m) 40' (12 m) 50' (15 m) 50' (15 m)
Minimum Distance from Burner to Elbow or
U-Tube
10' (3 m) 10' (3 m) 10' (3 m) 15' (4.5 m) 15' (4.5 m) 20' (6 m) 20' (6 m) 20' (6 m)